Save data sets in different places

the output result only saves the last (unusual1.dat) file instead of all three.

if f==1 save Norm.dat stats -ascii %Save data to dat file using ascii

else if f==2 save Unusual.dat stats -ascii

 else
        save Unusual2.dat stats -ascii
end
end

Could you help me where is my problem, please?

Answer 1

[Stephen23]

The mistake that both you and Image Analyst made is to use command syntax, whereas you need to use function syntax like this:

fnm = sprintf('Unusual%d.dat', f);
save(fnm,'stats','-ascii')

This is clearly explained in the MATLAB help: "When a function input is a variable, you must use function syntax to pass the value to the function."

source: https://www.mathworks.com/help/matlab/matlab_prog/command-vs-function-syntax.html

[Image Analyst]

Good catch. I just used his code for save without thinking.

Answer 2

[Image Analyst]

I guess then that f never obtains the value of anything other than 1 or 2.

Please read this: http://www.mathworks.com/matlabcentral/answers/13205#answer_18099

In your loop, construct the file name with sprintf and use that instead of the multiple if block:

filename = sprintf('Unusual%d.dat', f);
save filename stats -ascii