pattern search help in sample

Let me explain the problem. I have a 5000 sample patterns of length 4 with the relative frequencies of each of them, for example:

[1 1 1 0] -------- 0,007

[0 1 0 0] -------- 0.012

[1 1 1 1] ------- 0,003

and so on until 5000

Performing a separate load, which for explaining this case and therefore influence not indicate, for example I get the pattern:

[0 1 0 0]

My question is this:

What code should I use to find this pattern in the sample of the 5000 data? I realize this because i want to know the relative frecuency automatically

thank you very much

[dpb]

How are the data stored?

But, the general idea would likely come from

doc ismember

but will wait to find out about the form...

Answer 1

[Image Analyst]

Try this:

% Create sample data in a rectangular numerical array.
m = [1 1 1 0
0 1 0 0
1 1 1 1]
% Create array for converting a row into unique numbers
% 0 - 15 based on the binary pattern in each row.
twos = repmat([8 4 2 1], [size(m, 1), 1]);
% Get a column vector of the number in each row.
numbers = sum(m.*twos, 2)
% Get the frequency of occurrence (histogram).
counts = histc(numbers, 0:15)