SU378855A1 - STATISTICAL ANALYZER - Google Patents

Description

The invention relates to the field of electronic computing and can be used in the automation of statistical processing of information.

Statistical analyzers are known that contain drive counters, a counter-divider, an interval counter, a frequency counter, a pulse generator, and a burst trigger that allow to accumulate the frequencies of the statistical distribution and calculate, in particular, the median. By the relatively small complexity of the device, it is also possible to automate the calculation of the entropy of the distribution, equal in absolute value to the sum of the products of the relative frequencies of the distribution by the logarithms of these relative frequencies.

The aim of the invention is to enhance the functionality of the statistical analyzer and simplify the entropy calculation chains.

This is achieved by the fact that the analyzer additionally contains an entropy counter, a control counter, a delay element, a decoder, and gates, the output of the pulse generator connected via a valve connected to the trigger of the pulse bursts, with the input of the frequency counter and the delay element. The outputs of the frequency counter are connected via a decoder to the input of a control counter, the outputs of which are connected via valves connected to

delay element, with entropy counter bits. By means of such links between the elements of the device, the calculation of the products of relative frequencies by their logarithms X log x) reduces to the reduction of the elementary increments of the functions y x log x.

The drawing shows a diagram of the proposed analyzer. The multichannel input of the statistical analyzer is connected to the inputs of drive counters I, 2 and 3, to the input of frequency counter 4, which in this case also functions as a sample counter, and through delay element 5 and valves 6 with reversing entropy counter 7, counters 1 outputs , 2 and 3 are connected to the 8-pack trigger; the pulses, the output of which is connected by the swatch 9 at the input of the counter 4 and the delay element 5. The outputs of the counter 4 are connected via the decoder 10 to the input of the control counter //, the outputs of which are connected to the valves 6, also connected with the exit m delay member 5.

The pulse generator 12, controlled by the trigger 13, is connected to the inputs of the counters 1, 2

Vi 3, with valve 9 and through the counter-divider 14 - with the trigger input 8, with the reset bus of the counter 4 to the input of the interval counter 15, the outputs of which are connected, for example, through a decoder with control inputs

counters /, 2 and 5. One of the outputs of the counter

15 is connected to the zero input of the trigger 13, a single input of which is connected through the sample volume switch 16 to the outputs of the counter 4. The outputs of the trigger 13 are connected to the addition and subtraction bars of the counter 7. One of the outputs of the trigger 13 is connected to the reset bus of the counter 4.

The analyzer works in the following way. Before starting, all the counters and triggers of the analyzer are reset to the initial position by a reset signal (the reset circuits are not shown in the diagram). In this case, the trigger 8 closes the valve 9, the trigger 13 turns off the generator 12 and sets the counter 7 to the add mode. The distribution information is fed from the multichannel input to the corresponding counters I, 2 and 5 in the form of pulses through the corresponding channel. The total number of pulses is counted by counter 4, which at this stage is performed by the function of the sample counter.

At the same time, the pulses from the analyzer input go through the delay elements 5 to the valves 6. When the counter accumulates 4 numbers mj, v.2, ..., m-i, the decoder 10 connected to counter 4 generates pulses to the counter input //. The numbers t correspond to the abscissas of the function y x log x and are determined when calculating the decoder 10 from the condition of optimal piecewise linear approximation of the function y X log X. Depending on the state of the counter 11, the corresponding modes 6 are opened, through which the pulses from the delay element 5 arrive at the corresponding bits of the counter 7. As a result, by the time when the sample reaches the set volume n, there will be a number in the counter 7

L I (m; - ini-i) i: n log n.

When the sample reaches the set volume, the trigger / 5 is overturned by a pulse from counter 4, resets counter 4 to zero, switches counter 7 to subtraction and turns on pulse generator 12. From this moment, output to counter 4 of frequency P begins; recorded during the sampling counters /, 2 and 5. At the beginning, the pulses from the generator 12 enter the counter / and the counter-divider 14. When the counter / trigger 8 overflows, it overturns and opens valve 9, the pulses begin to flow into the counter 4. The overflow pulse of the counter 14 returns a trigger ep 8 to its original position. At this point, counter 4 receives an impulse. Similarly to the above, the number

N E (OTJ - / Ig-Og% "i log" j,

which is subtracted from the contents of the counter 7.

The impulse of the non-polypany of the counter 14 also resets the counter 4 to zero and records the unit in the counter 15. The signal from the output of the counter 15 closes the input of the counter 1 and opens the input of the counter 2. The output of the number "2 on the counter 4" begins. , 2 vi 3 at counter 4 and calculation of numbers.

After polling counter 1, counter 15 returns trigger 13 to its original position and thereby turns off pulse generator 12. As a result, counter 7 will have a number

 - Nj N - I. D (otg - / n,) :: yV - E “log / g -“ E PJ log pj

where I - entropy;

(PJ - /) is a relative frequency.

The number of PNs can be derived, for example, through a digital-to-analogue converter Hia switch instrument and normalized to the value of H d p p p p p p p p p p p p p p p p p p p r p

Subject invention

Statistical analyzer containing

storage counters, the first inputs of which are connected to the input terminal of the device, the second inputs - to the pulse generator n to the counter-divider, the third - to the first output of the interval counter, the outputs of the storage counters are connected to the first trigger input of the pulse packets, the second input of which is connected to frequency counter, counter-divider n interval counter, the second output, which is connected to the control input

trigger connected by another input and you-. a stroke with a frequency counter, the input of which is connected to the input terminal of the device and a delay element, characterized in that, in order to extend the functionality of the analyzer, it further comprises a delay element, a gate and a series-connected counter, the control counter, the outputs of which are connected via gates entropy counter, one input

which is connected to the input of the pulse generator and to the output of the controlling trigger, the second output of which is connected to the second input of the entropy counter, the output of the trigger of the pulse packets is connected to the first input of the ven.

The second input of which is connected to the output of the pulse generator, and the output of the valve is connected to the frequency counter and, through a delay element, to the valves.