When I run the following code it only shows the last file in the directory in MATLAB workspace? How do I get all the files in my directory saved in the workspace?

ivsFiles = dir('*.ivs');
numfiles = length(ivsFiles);
for k = 1:103;
filename = ivsFiles(k).name;
fileID = filename;
C = textscan(filename,'%d');
end

[Walter Roberson]

Caution: that code is for looking for a number at the beginning of every file name, not for reading the contents of each file. You are applying textscan() to the string that is the file name. If you wanted to read from the file, you would have to fopen() the file and textscan against the file identifier.

[Anuradha Bhattacharya]

But I have files ra1001 to ra1150. How do I open and read all the files in the directory? Thanks for your help.

[Anuradha Bhattacharya]

I tried this code:

ivsFiles = dir('*.ivs');
numfiles = length(ivsFiles);
for k = 1:103;
filename = ivsFiles(k).name;
fileID = filename;
fid = fopen('ra%d.ivs',k);
C = textscan(fid,'%d');
fclose(fid);
end
It is giving error:

Error using fopen Invalid permission.

My files do not have any password settings on them.

Answer 1

[KSSV]

ivsFiles = dir('*.ivs');
numfiles = length(ivsFiles);
C = cell(numfiles,1) ;  % initialize each file's data into a cell 
for k = 1:numfiles;
filename = ivsFiles(k).name;
fileID = filename;
C{i} = textscan(filename,'%d');
end

Please note that, you will eat up the memory if the files are huge.

[KSSV]

Consider Walter Roberson comments...he is right..

[Walter Roberson]

ivsFiles = dir('*.ivs');
numfiles = length(ivsFiles);
C = cell(numfiles,1) ;  % initialize each file's data into a cell 
for k = 1:numfiles;
filename = ivsFiles(k).name;
fileID = fopen(filename, 'rt');
C{i} = textscan(fileID,'%d');
fclose(fileID);
end