Hi, I'm trying to upload mutliple files into matlab but they are qxf files and I am struggling.

I have the code;

Series1=qxf2mat('c1.qxf','-S')

to upload each file individually, and;

numfiles = 20;
mydata = cell(1, numfiles);

for k = 1:numfiles
  myfilename = sprintf('file%d.txt', k);
  mydata{k} = importdata(myfilename);
end

as an example way to import multiple text files but i'm not sure how to combine the two so that it works. My files are named from c1 - c75.

Thank you for any help you give,

Alexandra

Answer 1

[Stephen23]

I will assume that the function qxf2mat imports the files correctly (it is a third party file, and downloading it requires registering. Apparently it imports the files as a structure). In that case you basically need to replace the importdata function with qxf2mat:

numfiles = 75;
mydata = cell(1,numfiles);
for k = 1:numfiles
    myfilename = sprintf('c%d.qxf', k);
    mydata{k} = qxf2mat(myfilename,'-S');
end
out = [mydata{:}]; % convert the cell array into a non-scalar structure

But I would recommend that you use dir:

S = dir('c*.qxf');
N = numel(S);
out = cell(1,N);
for k = 1:N
    out{k} = qxf2mat(S(k).name,'-S');
end
out = [out{:}];

And read this to know how to access the imported data:

http://www.mathworks.com/help/matlab/matlab_prog/access-multiple-elements-of-a-nonscalar-struct-array.html