MATLAB: Using textscan with txt

MATLABtextscan

Hi MATLAB Experts,
I am trying to use textscan function to read txt file, which is actually having more than 100,000 rows and 100 columns.
In order to convert data into a matrix in MATLAB, I am using for loops as follows:
fid = fopen(filename,'r');
tmp = textscan(fid,'%s','Delimiter','\n'); % there are many different data format existing (i.e. char/cell/double)
USdata = [];
for n = 2:length(tmp{1})
     temp_data = regexp(tmp{1}{n},'\t','split');
     USdata = [USdata; temp_data];
 end
However, it takes too long since it has more than 100,000 rows. What would be the most efficient way to do it??
Thanks for any help you could provide in advance.
Jake

Best Answer

Try just reading row by row
fid=fopen('example_text.txt')
A={}
tline = fgetl(fid)
while ischar(tline)
    A=[A; tline]
    tline = fgetl(fid)
end
fclose(fid)
If you find this answer of any help solving your question,
please click on the thumbs-up vote link,
thanks in advance John
jgb2012@sky.com
Related Question