JP2019174543A - Data display device and data display method - Google Patents

Abstract

To display plots not to be originally displayed on a scatter diagram on the same scatter diagram to thereby enable visualization and selection of these plots.SOLUTION: A data display device performs processing of causing a scatter diagram to be displayed on a display screen, and the data display device has: an off-range area location determination processing unit that, on the display screen where the scatter diagram is caused to be displayed, determines a plot arrangement area off an enlargement display object range for displaying plots off the enlargement display object range where an enlargement display of a pre-enlarged scatter diagram is performed in an area outside the post-enlarged display enlargement display object range; and a plot drawing area determination processing unit that determines an arrangement location of the plot off the enlargement display object range in the pre-enlarged scatter diagram in an area outside the enlargement display object range relying upon a location of the plot in the pre-enlarged scatter diagram.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a data display technique.

  There are various methods for displaying data, and a device for making display easy to understand has been proposed (see, for example, Patent Document 1).

  Among them, a method of displaying data in a scatter diagram (plot diagram) graph is common.

JP 2006-170724 A

  FIG. 14 is a diagram illustrating an example of a display method of a scatter diagram graph. An example in which a scatter diagram graph is displayed on a display screen (display) such as a personal computer (PC) or a smartphone will be described. As shown in FIG. 14A, for example, plots may be concentrated on a partial area (enlargement target area) AR101 on a two-dimensional xy coordinate. In such a case, as shown in FIG. 14B, when the scatter diagram is enlarged and displayed on the display screen, the display area AR101 is enlarged and enlarged as shown in the enlargement target area AR101a. Then, there is a problem that the plot outside the enlargement target area AR101 is not displayed on the display screen in the enlargement target area.

  If there is a plot that is not displayed on the display screen in the enlarged display, it is difficult for the user to recognize such a plot, and there is a high possibility of overlooking the existence of data. In addition, there may be a case where a hidden plot cannot be selected as a selection target by selecting multiple plots, such as selecting a plot range. In addition, there is a problem in that it is not possible to perform a predetermined operation on the display screen, for example, a value by pointing to the plot (such as a balloon display of a coordinate position or an attribute) by pointing the plot. Even when plots are concentrated in a part of the area and displayed in an enlarged manner, there are cases where it is desired to pay attention to a plot outside the enlargement target area.

  In the case of a logarithmic axis scatter diagram, the values “0” and “+ ∞” are arranged on the graph, and in the case of a normal axis (a numerical axis that is not a logarithmic display), the values “−∞” and “+ ∞” are arranged on the graph. There is also a problem that it cannot be done. The value “0” is a strict zero of the numerical value, and a numerical value close to the limit such as 0.000. Further, the value “+ ∞” means a positive infinity of a numerical value, and a numerical value close to the limit such as 10 to the 100th power is not applicable. This infinite value is often handled as a special character string instead of a numerical value in the database.

  In practice, the inventory management software that frequently uses scatter chart graphs has the following disadvantages due to the above problems.

  For example, when managing inventory of products, there are often items such as inventory quantity 0 and inventory turnover rate ∞, but it is a value that can not be displayed in graphs in logarithmic display, so you can miss the existence of those items become. Also, if most of the items are concentrated at a specific location on the scatter plot and a small portion is plotted away from it, when the area where the plot is concentrated is enlarged, Since the plots of the selected items cannot be selected, there is a problem that operations and screen transitions using the information of those plots cannot be performed.

  Conventionally, there has been a technique for juxtaposing a UI different from a scatter diagram so that data out of the region can be selected. However, such a method causes the following problems.

  A value outside the range cannot be selected at once by the range selection operation on the scatter diagram. In addition, the magnitude relationship between out-of-range values becomes difficult to understand intuitively. Furthermore, the UI becomes complicated.

  In view of the above-described problems, the present invention eliminates oversight of a plot (data) that deviates from that area even if a part of the display screen is enlarged, and selects a deviated plot. The purpose is to make it possible.

  Another object of the present invention is to enable selection of a plot out of a scatter diagram with a simple user interface (UI).

  According to an aspect of the present invention, there is provided a data display device that performs processing for displaying a scatter diagram on a display screen, and an enlarged display that performs an enlarged display of the scatter diagram before the enlargement on the display screen on which the scatter diagram is displayed. An out-of-range area position determination processing unit for determining an out-of-range display target plot arrangement area for displaying a plot out of the target area as an area outside the enlarged display target area after the enlarged display, and the scatter before the enlargement A plot drawing area determination processing unit for determining a plot placement position in a region outside the enlarged display target range depending on the position of the plot in the scatter diagram before the enlargement, the plot out of the enlarged display target range in the figure; A data display device is provided.

  The plot drawing area determination processing unit is configured such that, out of the plots out of the enlarged display target range, a plot out of only one of the two axes is not out of the enlarged display target range plot arrangement area. A plot that is arranged within the enlarged display range of the other axis and deviates from both axes is arranged within the enlarged display range that is diagonally outside of the enlarged display target outside-plot placement area.

  Further, when the display target data list for specifying the plot for the enlarged display is specified and the enlarged display target range is not designated, 0 is set for the logarithmic axis based on the display target data list. And a display area automatic calculation processing unit for obtaining an upper limit value and a lower limit value of the area for performing the enlarged display excluding plus or minus infinity in the case of a normal axis. To do.

  The out-of-range region position determination processing unit sets coordinates representing virtual positions on the scatter diagram of the enlarged display target out-of-range plot arrangement region one before the lower limit scale digit and one after the upper limit scale digit. It may be determined.

  The out-of-range region position determination processing unit determines an out-of-range region position based on a predetermined threshold value.

  When there are a plurality of enlargement display target ranges on a scatter diagram, the plot drawing area determination processing unit displays a plot out of the enlargement display target range in the scatter diagram before the enlargement. A plurality of scatter plots are created by performing a plurality of processes for determining the arrangement position of the plot in an area outside the enlarged display target range depending on the position of the plot in FIG.

  The present invention is a data display method for performing a process of displaying a scatter diagram on a display screen, and in the display screen on which the scatter diagram is displayed, is out of an enlarged display target range for performing an enlarged display of the scatter diagram before the enlargement. An out-of-range region position determination processing step for determining a plot arrangement region outside the enlarged display target range for displaying a plot as a region outside the enlarged display target range after the enlarged display, and the enlarged display in the scatter diagram before the enlarged display A plot drawing region determination processing step for determining a plot placement position in a region outside the enlarged display target range depending on the position of the plot in the scatter diagram before the enlargement. A featured data display method is provided.

  According to the present invention, even if the display screen of the scatter diagram is enlarged, it is possible to eliminate oversight of plot data out of the display range and to select those plots.

  Further, according to the present invention, it is possible to select an outlier plot in a scatter diagram with a simple user interface.

It is a figure which shows an example of the principle of the data display technique by the 1st Embodiment of this invention. As described in FIG. 1, it is a diagram illustrating an arrangement example of an enlarged display area and a plot arrangement area outside the enlarged display target area outside the enlarged display area. It is a functional block diagram which shows the example of 1 structure of the data (graph) display apparatus by the 1st Embodiment of this invention. It is a figure which shows the structural example of the data stored in the graph display object data storage part. It is a flowchart figure which shows an example of the flow of the display area automatic calculation process in a display area automatic calculation process part. FIG. 6 is a flowchart showing an example of a plot drawing area (position determination process) outside a display target range by an out-of-range area position determination processing unit, and an example of an area set by the process in FIG. 5. It is a figure which shows the example of a display of the virtual plot position outside the display object range in the process shown in FIG. It is a flowchart figure which shows the flow of a process by the plot drawing area | region determination process part. It is a figure which shows an example of the table of the plot drawing position used for the process of FIG. It is a figure which shows the example of arrangement | positioning of each plot to the decided area | region shown to Fig.2 (a). It is a figure which shows the example at the time of applying the data display technique by the 2nd Embodiment of this invention to an inventory management technique. FIG. 11B is a table including data that is the basis of the diagram of FIG. 11A. It is a figure which shows an example of the principle of the data display technique by the 3rd Embodiment of this invention. It is a figure which shows an example of the principle of the data display technique by the 4th Embodiment of this invention. It is a figure which shows the subject of the conventional display technique.

  Hereinafter, a data display technique according to an embodiment of the present invention will be described in detail with reference to the drawings. In the present embodiment, the data display device refers to a graph display device that can display a scatter diagram.

  FIG. 1 is a diagram showing an example of the principle of the data display technique according to the first embodiment of the present invention. As shown in FIG. 1 (a), in the scatter diagram displayed on the display screen, for example, because the plots are concentrated, in addition to the enlargement target area AR1 to be displayed in detail by enlarging the display, Assume an outer region in the vertical direction on the outside, an outer region in the horizontal direction, and an outer region in the oblique vertical direction. In addition to the plot group P1,... In the enlargement target area AR1, for example, plots P11 to P16 also exist in the outer area.

  Therefore, as shown in FIG. 1B, in the scatter diagram that is enlarged and displayed on the display screen, the plot that exists in the area outside the enlargement target area AR1 that has been enlarged and displayed is within the display screen in actual dimensions. Even if it does not enter, a dedicated virtual area for displaying such a deviated plot is newly provided as a line segment. In the virtual area, a plot having a value larger than the enlargement target area AR1 in the y-axis direction of the xy display, for example, in one dimension (for example, P11) or 0 in comparison with the actual display area after enlargement. Compress to dimension (eg P12). Such a virtual area is referred to as an “extended display target area outside plot arrangement area”.

That is, among the plots out of the enlargement target area AR1, a plot out of only one of the two axes (eg, P ₁₁ ) is an enlargement of the axis that is not out of the enlargement display target area outside plot arrangement area. Place in the display area. On the other hand, the plot (for example, P ₁₂ ) out of the two axes is arranged in the enlarged display area obliquely outside the enlarged display target area outside plot arrangement area.

  FIG. 2 is a diagram illustrating an arrangement example of the enlarged display area on the display screen after the enlarged display and the outside enlarged display target area plot arrangement area on the display screen after the enlarged display as described in FIG.

  As shown in FIG. 2, if the enlarged display area is R5, the outside enlarged display target area plot arrangement area can be defined as R1, R2, R3, R4, R6, R7, R8, and R9. Alternatively, as shown in FIG. 2B, these regions R1, R2, R3, R4, R6, R7, R8, and R9 are divided into a Y-axis upper limit region AR11, a Y-axis lower limit region AR12, and an X-axis upper limit value. It can also be defined as an area AR13 and an X-axis lower limit super area AR14.

  By setting such a plot placement area outside the enlargement display target area, displaying plots outside the enlargement display area, and placing them in a virtual position that depends on the coordinate position of the plot, it is possible to overlook missing plots. The plot can be selected by the user.

  Each embodiment will be described in detail below.

(First embodiment)
FIG. 3 is a functional block diagram showing a configuration example of a data (scatter diagram graph) display device according to the first embodiment of the present invention.

  As shown in FIG. 3, the data (graph) display device A according to the present embodiment can be realized by causing a CPU or the like to execute a program stored in a memory of a personal computer PC, for example. Therefore, the data display device A is associated with an input device such as a storage unit, a central processing unit, a display unit, a mouse, and a touch panel.

  The data display device A shown in FIG. 3 is a functional block diagram showing in detail a configuration for realizing a function of displaying a scatter diagram (graph) on a display screen. The data display device A is a graph display target data storage unit 1 for storing display target data serving as a base for displaying a graph such as a scatter diagram, and for displaying a scatter diagram on a display unit such as a PC based on these data. A display (control) processing unit by a scatter diagram display program 3 or the like for performing the above process.

  The display processing unit such as the scatter diagram display program 3 includes a processing unit specific to the present embodiment in addition to the general scatter diagram display processing. For example, a general scatter diagram display process includes a data reading processing unit 5 that reads data from the graph display target data storage unit 1 and a display area that performs processing by a general method such as a drag process using a mouse on the scatter diagram. A setting processing unit 7, a scatter diagram drawing processing unit 11, and a plot selection processing unit 15 are included.

  In the present embodiment, in addition to these processing units, a display region automatic calculation processing unit 7a associated with the display region setting processing unit 7 and an out-of-range region position determination processing unit 11a associated with the scatter diagram drawing processing unit 11 And a plot drawing area determination processing unit 11b.

  FIG. 4 is a diagram illustrating a configuration example of data stored in the graph display target data storage unit 1. 4A and 4B are data source storage data 1a that is data serving as a base for creating a scatter diagram. Data is stored in the graph display target data table A shown in FIG. The uniquely specified ID is associated with the corresponding data value. In this table, the value “0” is included. In the graph display target data table B shown in FIG. 4B, an ID for uniquely specifying data and a data value are associated with each other. In this table, the value “∞” is included.

  4 (c) to 4 (f) are examples of the data structure of the program memory storage data 1b. Data specified by the user or data generated from the data shown in FIGS. 4 (a) and 4 (b). It is.

  FIG. 4C shows data of the graph display target table name. The axis names of the x axis (based on FIG. 4 (a)) and the y axis (based on FIG. 4 (b)) designated by the user from the user interface. Is stored.

  FIG. 4D is graph display target data generated from the data of FIG. 4A and FIG. 4B of the data source storage data 1a. The ID, the x-axis value, and the y-axis value are as follows. Stored. For example, the y-axis value of ID = 3 is “∞” from FIG.

  FIG. 4E shows graph display area setting data, which is specified from the user interface. Here, an upper limit and a lower limit of the enlarged display area of the x axis and the y axis are defined.

  FIG. 4F shows graph scale unit setting data, which is specified from the user interface. Here, the scale of the x-axis and the y-axis is set.

  The following processing is performed based on the above data. This will be described with reference to FIGS.

  Hereinafter, processing added from the conventional processing in the present embodiment will be described. FIG. 5 is a flowchart showing an example of the flow of the display area automatic calculation processing in the display area automatic calculation processing unit 7a. This display area automatic calculation process is a process of automatically calculating the upper and lower limits of the area based on the display target data list when the display target area is not designated by a user operation or the like. The domain of logarithmic axis (0, + ∞) and the domain of normal axis (−∞, + ∞) are considered.

  The process is started (Start), and in step S1, the graph display target data (list) shown in FIG. 4D is read. In step S2, it is determined whether or not the axis is logarithmic. In the case of Yes, it progresses to step S3 and it is determined whether value "0" exists. In the case of Yes, the process proceeds to step S4, and the data list having the value “0” is excluded. Next, in step S5, the minimum value of the data list is set as the region lower limit.

  In the case of No in step S3 or from step S5 to step S6, it is determined whether or not the value “+ ∞” exists. In the case of Yes, it progresses to step S7 and excludes the data of value “+ ∞” in the graph display target data (list). In step S8, the maximum value of the graph display target data (list) is set as the upper limit value of the enlarged display target area. And a process is complete | finished with the case of No in step S6 (End).

  If No in step S2, the process proceeds to step S9 to determine whether or not the value “−∞” exists. In the case of Yes, it progresses to step S10 and excludes the data of the value “−∞” from the graph display target data list. In step S11, the minimum value of the graph display target data list is set to the region lower limit, and the process proceeds to step S12 together with No in step S9. In step S12, it is determined whether or not the value “+ ∞” exists. If Yes, the process proceeds to step S13. If No in step S12, the process ends (End).

  In step S13, the graph display target data list with the value “+ ∞” is excluded. In step S14, the maximum value of the data list is set as the upper limit of the area, and the process ends (End).

  With the above processing, the upper limit and lower limit of the area where the plot deviating from the enlargement target area is taken into account, taking into account the logarithmic axis domain (0, + ∞) and the normal axis domain (−∞, + ∞). Calculate the value automatically.

  FIG. 6 is a flowchart showing an example of the position determination process of the plot drawing area outside the display target range by the out-of-range area position determination processing unit 11a, and shows an example of the area set by the process in FIG. . FIG. 7 is a diagram showing a display example of virtual plot positions in the display target range in the processing shown in FIG.

  As shown in FIG. 6, the out-of-range area position determination processing unit 11a starts the display target out-of-range position determination process (Start), and in step S21, the lower limit exceeds the lower limit defined in the display area automatic calculation processing unit 7a. For example, it is determined whether or not the data to be drawn in the super region exists in the graph display target data in FIG. In the case of Yes, it progresses to step S22 and it is determined whether the axis | shaft of the scatter diagram to display is a logarithm display. In the case of Yes in step 22, the process proceeds to step S23, and the virtual position of the lower limit superregion is calculated by the following formula (1). In the case of No in step 22, the process proceeds to step S24, and the virtual position of the lower limit superregion is calculated by the following mathematical formula (3). In any case, as in the case of No in step S21, the process proceeds to step S25, and it is determined whether there is data to be drawn in the upper limit super-region. In the case of No, the process ends (End).

  If Yes in step S25, it is determined in step S26 whether or not the axis of the scatter diagram to be displayed is logarithmic display. In the case of Yes, it progresses to step S27 and calculates the virtual position of an upper limit super area | region by following Numerical formula (2). In the case of No in step 26, in step S28, the virtual position of the upper limit super area is calculated by the following mathematical formula (4). In either case, the process ends (End).

  In this way, as shown in FIG. 7, the coordinate position for displaying the plot of the data deviating from the enlarged display target area on the same graph while appropriately separating the distance from the enlarged display target area is determined. Can do.

For example, when the scatter diagram is displayed in logarithm, when the minimum value is 5, since the minimum digit is 1, the value “0” is plotted on the 0.1 digit that is the digit before the minimum digit of the minimum value. In the case of the maximum value 5 × 10 ⁶ , the maximum digit is 10 ⁷ , and therefore the value “∞” is plotted on the 10 ⁸ digit that is the next digit after the maximum digit of the maximum value.

  However, “0” and “∞” should be attached with axis labels so as not to be confused with the plot in the enlarged display target area.

  The minimum and maximum values are calculated for the original data excluding the values “0” and “∞”.

  Through the above processing, coordinates representing a virtual position on the scatter diagram of the region outside the display range can be determined. For example, the virtual position is one before the lower limit scale digit and one after the upper limit scale digit.

If the lower limit of the display target area is X _L , the upper limit is X _U , and the scale unit of the graph axis is X _S , the plot position is as follows.
For logarithmic display:

通常表示の場合：

For normal display:

  FIG. 8 is a flowchart showing the flow of processing by the plot drawing area determination processing unit 11b. FIG. 9 is a diagram showing an example of a plot drawing position table used for the processing, and FIG. 10 is a diagram showing an example of the arrangement of each plot in the determined region shown in FIG.

FIG. 9 is a diagram showing an example of a plot drawing position table obtained by the above processing. FIG. 9A shows plot target data, the x-axis is a value X, and the y-axis is a value Y. As shown in FIG. 9 (b), the display target range, the lower limit of the x-axis is _{X L,} upper limit _{X U.} The lower limit of y-axis is _{Y L,} upper limit _{Y U.}

As shown in FIG. 9C, the position of the out-of-range region is such that the x axis lower limit exceeds X _<L and the upper limit exceeds X _{> U.} The lower limit of the y-axis is Y _<L , and the upper limit is Y _{> U.}

As shown in FIG. 9D, the plot drawing position in the region shown in FIG. 8 is determined.
As shown in FIG. 8, when the plot drawing area determination process is started (Start), it is determined in step S31 whether or not the x-axis value is smaller than the x-axis lower limit. In the case of Yes, it progresses to step S32 and it is determined whether a y-axis value is larger than a y-axis upper limit. In the case of Yes, it progresses to step S33 and draws a plot in area | region R1 of FIG.9 (d). In the case of No in step S32, the process proceeds to step S34, and it is determined whether or not the y-axis value is smaller than the y-axis lower limit. In the case of Yes, it progresses to step S35 and draws a plot in area | region R7. In No, it progresses to step S36 and draws a plot in area | region R4.

  In the case of No in step S31, the process proceeds to step S37, and it is determined whether or not x-axis value> x-axis upper limit. In the case of Yes, it progresses to step S38 and it is determined whether a y-axis value is larger than a y-axis upper limit. In the case of Yes, it progresses to step S39 and a plot is drawn on area | region R3. In No, it progresses to step S40 and it is determined whether a y-axis value is smaller than a y-axis lower limit. In the case of Yes, it progresses to step S41 and draws a plot in area | region R9. In No, it progresses to step S42 and draws a plot in area | region R6.

  In the case of No in step S37, the process proceeds to step S43, and it is determined whether or not the y-axis value is larger than the y-axis upper limit. In the case of Yes, it progresses to step S44 and draws a plot in area | region R2. In the case of No in step S43, the process proceeds to step S45, and it is determined whether or not the y-axis value is smaller than the y-axis lower limit. In the case of Yes, it progresses to step S46 and a plot is drawn on area | region R8. In No, it progresses to Step S47 and draws a plot in field R5. In this way, an enlarged display of a scatter diagram having the plot shown in FIG. 10 and a display of a plot deviating from the enlarged display region R5 are possible. That is, in the example shown in FIG. 10, four plots are shown in the enlarged display target region R5, and one plot is shown in each of R2, R6, R8, etc. among the other plot display regions outside the enlarged display target region. Has been.

  The following effects can be obtained by displaying a plot that could not be displayed in the conventional scatter diagram graph.

The oversight of the existence of out-of-area data is eliminated.
The relative positional relationship of out-of-region data can be understood. A one-dimensionally compressed plot retains the axis values that were not compressed. The zero-dimensionally compressed plot still has a magnitude relationship with the upper and lower limits of the region.

  The UI operation can be performed for the plot outside the area as well as the plot within the area. Both in-range and out-of-range can be selected together by a single range selection operation.

  As described above, the functions and operability of the application using the scatter chart graph such as inventory visualization are improved.

(Second Embodiment)
Next, a second embodiment of the present invention will be described.
FIG. 11 is a diagram illustrating an example in which the data display technique according to the first embodiment is applied to an inventory management technique.

  The diagram of FIG. 11A shows an example of a scatter diagram in which the x-axis is the total inventory record and the y-axis is the total sales record, and FIG. 11B is a table including the data that is the basis of the diagram of FIG. 11A.

  When processing is performed according to the processing example in the case where the x-axis and y-axis are logarithmic axes in the first embodiment, the value “0” can be displayed on the x-axis and y-axis. Therefore, as shown in FIG. 11B, a plot of the total inventory performance “0” that was not originally displayed can be selected in the scatter diagram.

  Here, for the enlargement target region in FIG. 11A, an index indicating dispersion such as the standard deviation of the plot may be obtained for each divided region, for example, and the region including the plot with a small standard deviation may be specified. In this case, the standard deviation may be set as a predetermined threshold value, or the threshold value may be automatically obtained by trial and error.

(Third embodiment)
Next, a third embodiment of the present invention will be described. FIG. 12 is a diagram showing a display example when there is little deviation in the plot of the scatter diagram.

As shown in FIG. 12A, when there is little bias in the plot of the scatter diagram, for example, the user sets an arbitrary region including the plots pa and pb as an enlarged display target region on the graph of the scatter diagram. It is good to do so. The range of this region is the range from X _{L to} X _{U on} the x axis and the range from Y _L to Y _{U on the} y axis.

  Then, as shown in FIG. 12B, a new scatter diagram graph to which the out-of-range value display area is added is created.

The range of this region is such that the x-axis is X _{<L to} X _{> U} and the y-axis is Y _{<L to} Y _{> U.} The range of this area includes the enlarged display target area.

The plot on the original scatter graph is rearranged on the new graph.
Enlarged display area: pa, pb
Out-of-range display area: p1, p2, p3, p4, p6, p7, p8, p9

  In this way, even when there is little bias in the plot, it can be handled in the same manner as in the first embodiment.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described. FIG. 13 is a diagram showing the principle of the automatic graph division function in the scatter diagram plot.

As shown in FIG. 13A, in the case where there are a plurality of regions where plots on the scatter diagram are concentrated (in the example of the figure, between Xa _L and Xa _U and between Ya _U and Ya _L ). Of the first display area and two different areas between Xb _L and Xb _U and the second area between Yb _U and Yb _L ) It is also possible to automatically set and divide and display a plurality of scatter diagrams as shown in FIGS. 13 (b) and 13 (c). Thereby, even when there are a plurality of regions where the plots on the scatter diagram are concentrated, the visibility of the plots on the scatter diagram can be improved.

For example, a block of plots is automatically recognized using the following algorithm shown as an example.
1) A plot group on a graph is divided into clusters by a clustering technique such as an X-means method that automatically estimates the number of clusters k.
2) Write a square centered on the center of gravity of each cluster and use the ratio α% (0-100) specified by the user to enlarge the square until the total number of (α / k)% plots are included. .
Example) When k = 3 and α = 90%, the number of plots is expanded to include 30 (= 90/3)% of the total.
3) The plot group included in each square is recognized as a lump of plots.

  Here, a plurality of enlarged display areas may be switched and displayed. Further, the normal axis and the logarithmic axis may be switched and displayed. In addition, the plot position outside the enlarged display target range may be displayed at a position closer to the enlarged display target range as the variance in the enlarged display target range is smaller.

  The processing and control can be performed by software processing by CPU (Central Processing Unit) or GPU (Graphics Processing Unit), ASIC (Application Specific Integrated Circuit) or FPGA (Field Programmable Gate) hardware hardware.

  Further, in the above-described embodiment, the illustrated configuration and the like are not limited to these, and can be appropriately changed within a range in which the effect of the present invention is exhibited. In addition, various modifications can be made without departing from the scope of the object of the present invention.

  Each component of the present invention can be arbitrarily selected, and an invention having a selected configuration is also included in the present invention.

  In addition, a program for realizing the functions described in the present embodiment is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed to execute processing of each unit. May be performed. The “computer system” here includes an OS and hardware such as peripheral devices.

  Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.

  The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory in a computer system serving as a server or a client in that case is also used to hold a program for a certain period of time. The program may be a program for realizing a part of the above-described functions, or may be a program that can realize the above-described functions in combination with a program already recorded in a computer system. At least a part of the functions may be realized by hardware such as an integrated circuit.

  The present invention can be used for a scatter diagram display device.

AR1 Enlargement target area R1 to R9 Enlargement display non-target area plot arrangement area AR11 Y axis upper limit super area AR12 Y axis lower limit super area AR13 X axis upper limit super area AR14 X axis lower limit super area 1 Graph display target data storage unit 3 Scatter chart display Program 5 Data reading processing unit 7 Display area setting processing unit 11 Scatter plot drawing processing unit 15 Plot selection processing unit

Claims (7)

A data display device that performs processing for displaying a scatter diagram on a display screen,
In the display screen displaying the scatter diagram, the enlarged display after the enlarged display of the plot display area outside the enlarged display target range for displaying the plot out of the enlarged display target range for performing the enlarged display of the scatter diagram before the enlarged display An out-of-range area position determination processing unit for determining an area outside the target range;
Plot drawing for determining a plot placement position outside the enlarged display target range in the scatter diagram before the enlargement, and determining the arrangement position of the plot in an area outside the enlarged display target range depending on the position of the plot in the scatter diagram before the enlargement A data display device comprising: an area determination processing unit. The plot drawing area determination processing unit, among plots out of the enlarged display target range,
A plot in which only one of the two axes is off is placed in the enlarged display range of the axis that is not out of the enlarged display target range outside the plot placement area,
The data display device according to claim 1, wherein the plots deviating from the two axes are arranged in an enlarged display range diagonally outside the enlarged display target range out-of-range plot arrangement region. Furthermore, it has a display target data list for specifying a plot for enlarged display,
If the enlarged display target range is not specified, 0 and infinity are excluded for the logarithmic axis based on the display target data list, and plus or minus infinity is used for the normal axis. The data display device according to claim 1, further comprising a display area automatic calculation processing unit that obtains an upper limit value and a lower limit value of an area that is excluded and subjected to the enlarged display. The out-of-range region position determination processing unit
The coordinate representing the virtual position on the scatter diagram of the plot display area outside the enlargement display target range is determined immediately before the lower limit scale digit and next to the upper limit scale digit. The data display device according to claim 1.   5. The data display device according to claim 1, wherein the out-of-range region position determination processing unit determines an out-of-range region position based on a predetermined threshold value. 6. When there are a plurality of the enlarged display target ranges on the scatter diagram,
The plot drawing area determination processing unit sets a plot outside the enlarged display target range in the scatter diagram before enlargement to an area outside the enlarged display target range depending on the position of the plot in the scatter diagram before enlargement. 6. The data display device according to claim 1, wherein a plurality of scatter diagrams are created by performing a plurality of processes for determining a plot placement position. A data display method for performing processing for displaying a scatter diagram on a display screen,
In the display screen displaying the scatter diagram, the enlarged display after the enlarged display of the plot display area outside the enlarged display target range for displaying the plot out of the enlarged display target range for performing the enlarged display of the scatter diagram before the enlarged display Out-of-range region position determination processing step for determining the region outside the target range;
Plot drawing for determining a plot placement position outside the enlarged display target range in the scatter diagram before the enlargement, and determining the arrangement position of the plot in an area outside the enlarged display target range depending on the position of the plot in the scatter diagram before the enlargement A data display method comprising: an area determination processing step.

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