How to detect number of zero string in a cell

Hi,I attached my matlab code and database. I want to count howmany '0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0' happens in diffr

Answer 1

[Star Strider]

There are no zero strings in your data. I assume you want to find out which are the same in the two files. You can do that easily enough by converting them to character arrays and using the intersect function:

fidi1 = fopen('Fateme Jalali t2.txt');
tt1 = textscan(fidi1,'%s', 'delimiter', '\n');
fclose(fidi1);
fidi2 = fopen('Fateme Jalali t3.txt');
tt2 = textscan(fidi1,'%s', 'delimiter', '\n');
fclose(fidi2);

tt1s = char(tt1{:});
tt2s = char(tt2{:});
[C,ia,ib] = intersect(tt1s,tt2s,'rows','stable');

If you want to find out which ones are not the same, use the setdiff function instead of intersect:

[C,ia] = setdiff(tt2s,tt1s,'rows','stable');

You will probably have to experiment to get the result you want, but one of these should work for you.

[Fateme Jalali]

thank u so much

[Star Strider]

My pleasure!

Answer 2

[Image Analyst]

Anyway, to count the number of zeros in a line of text from your file, you can do this to one line of text

numZeros = sum(textLine == '0');

To count the number of contiguous regions of zeros (so like [0 0 0 0] would be one region instead of 4), you'd use bwlabel():

[L, numZeroRegions] = bwlabel(textLine == '0');