"Any idea why this might be the case?"
It's because the different files have commas and semicolons in different places, e.g. line 10 of 1311_task.csv looks like this:
1;0.78;
but line 10 of 5422_task.csv looks like this:
10.5,96.09;;
So in one file you've got a semicolon after each number, and in the other file a comma in between the numbers and two semicolons at the end of the line.
I don't know what function(s) you're using to import the files, but here's an attempt to handle both of those situations with one piece of code:
files = {'1311_task.csv' '5422_task.csv'};
C = cell(1,numel(files));
for ii = 1:numel(files)
C{ii} = readcell(files{ii},'Delimiter',{',' ';'},'ConsecutiveDelimitersRule','join');
end
C{:}
As you can see there, the header info (lines 1-9) is not parsed the same between the two files, but the data section (lines 10-end) is, so maybe that's good enough?
