How do I change a function input with each loop iteration?

Hello,

Here's my issue. I have a folder containing 2435 files of the type '.aqa' (from an acoustic backscatter sensor). I have a function called ReadAquaScat1000.m which converts these files to .mat, which I can then work with further. I do not want to manually run the function 2435 times to convert these files, and so have tried writing a for loop. However, I am not sure how to do this because the function input must be the filename in single quotes, not including the .aqa extension, and I'm not sure how to assign a different filename with each loop iteration. My code is below. Thank you for any help you can provide!

%converts raw ABS .aqa files into .mat files that can be organized
%using ABSall.m
%first, navigate to directory containing .aqa files

filenames=dir('*.aqa');
filenames=struct2cell(filenames);
filenames=char(filenames(1,:)); %character array of filenames

filenames2=char(zeros(2435,14)); %preallocate array for filenames w/o .aqa extension
numbursts=length(filenames);

for i = 1:numbursts; %for each burst
    [~,filenames2(i,:),~]=fileparts(filenames(i,:)); %create array of filenames w/o .aqa extension
    file = char(filenames2(i,:)); %single filename, to be function input
    ReadAquaScat1000('file','SINGLE') %convert file
end

Answer 1

[Stephen23]

You are making your code far too complicated for such a simple task. Keep it simple, something like this should work:

S = dir('*.aqa');
for k = 1:numel(S)
    [~,file] = fileparts(S(k).name);
    ReadAquaScat1000(file,'SINGLE');
end

And if you really want a list with all filenames, it is easy to put them into one cell array:

 names = {S.name};

Also note that it is probably simpler to pass the path as well, rather than navigate to the directory and change the current directory:

D = '.'; % path string
S = dir(fullfile(D,'*.aqa'));
for k = 1:numel(S)
    [~,file] = fileparts(S(k).name
    P = fullfile(D,file);
    ReadAquaScat1000(P,'SINGLE');
end

[Kevin Simans]

You have all the answers! For some reason I thought the function ReadAquaScat1000 wouldn't accept a variable in place of the filename in single quotes for the input, but apparently I was wrong. Thank you very much for your help, Stephen.