how can i keep loop times in my for loop

for cnt:size(PSM,1) % this line gives me an error Unexpected MATLAB operator.  
 %anything               
end

if i set

for cnt=1:size(PSM,1)

it works but my for is inside a 'while' i don't want to reset cnt everytime , i want to cnt keep it number

thanks sry for bad english

[Jan]

If the surrounding while loop is important, show the corresponding code also. Currently it is not clear, what you want to achieve. Perhaps you want:

cnt = size(PSM, 1);

Answer 1

[Image Analyst]

You don't have a loop index. You need to have one. Do it like this:

for loopIndex = cnt : size(PSM, 1)

cnt can be 1 or any other starting value that you want. (By the way, if cnt is "count" just call it count which is very descriptive, unlike the cryptic/ambiguous cnt). The loopIndex is not reset every time. It goes in steps of 1 until it hits the last value, which is size(PSM, 1). If it takes a long time, then you need to use the code profiler, or tic and toc, to see which lines of code are taking up most of the time.