Storing while loop values in a vector?? Error

fid = fopen('example.txt');

sample=[]; %empty matrix count=1;

tline=fgetl(fid); while ischar(tline) disp(tline) sample(count)=tline; count=count+1; tline=fgetl(fid); end

fclose(fid);

I am trying to run this while loop and save each value consecutively in the vector "sample". "sample" should end with one column and an unknown amount of rows of strings.

I am getting the error 'Subscripted assignment dimension mismatch.' Is it because I'm starting with an empty vector?? Is it because each row is a string?? Please help.

Answer 1

[Magdy Saleh]

It might be easier here to use a cell array as such

fid = fopen('example.txt');

sample={}; %empty matrix count=1;

j = 1
tline=fgetl(fid);
while ischar(tline)
    disp(tline);
    sample{j} = tline
    tline=fgetl(fid);
    j = j+1 
end

fclose(fid);

[Magdy Saleh]

This is because you are trying to save a matrix (2D vector), which requires each vector to have the same number of characters. A cell array, or a vector of vectors, gives you the freedom to have them with different lengths.