How to find repeated values after decimal in array?

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Brandon Oliver
Brandon Oliver on 20 May 2022
Commented: Voss on 20 May 2022
I am trying to analyze the following column of data in an array:
868.1
567.1
413.1
1159.7
52.1
99.7
126.7
111.1
167.2
1322.2
15.1
43.7
290.6
I want to find the number of times that a number after the decimal point repeats itself and also identify certain patterns of numbers after the decimal point. For example, the number of times x.1 and x.7 repeat themselves. The numbers before the decimal represent time in milliseconds that a certain behavior occured, and the number following the decimal is a behavior identifier so in my example, x.1 followed by x.7 represents a certain behavior pattern that I want to identify on a larger scale. Any help would be much appreciated!

Accepted Answer

Voss
Voss on 20 May 2022
data = [ ...
868.1
567.1
413.1
1159.7
52.1
99.7
126.7
111.1
167.2
1322.2
15.1
43.7
290.6];
behavior_identifier = round(10*mod(data,1))
behavior_identifier = 13×1
1 1 1 7 1 7 7 1 2 2
numel(strfind(behavior_identifier.',[1 7])) % [1 7] appears 3 times
ans = 3

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R2022a

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