Reading text file using fprintf and textscan

Hello!!

I am reading a text file and trying to extract array from the file. I used script as below.

fid=fopen('test.txt');
B_a=textscan(fid,'%f\t%f\t%f\t%f\t%f\r\n','HeaderLines', 1);
fclose(fid);

The goal is to acheive a matrix as below.

B_a=[0.050000,6999.282209,-791.957055,6644.515337,2338.276074;

0.150000,8999.282209,-751.957055,6844.515337,2339.276074]

But as I did I only get an array contains only the first line of text file.

Can anyone please help me?

Answer 1

[Guillaume]

You could continue to use textscan, you don't specify line endings and separators in the format string:

fid = fopen('test.txt');
B_a=textscan(fid,'%f%f%f%f%f','HeaderLines', 1);
fclose(fid);
B_a = cell2mat(B_a);

You could also use readtable to read as a table, then convert to a matrix. If the header of the your file made more sense, readtable could have used that to name the variables.

B_a = table2array(readtable('test.txt'));

If on the newly released R2019a, the simplest is to use readmatrix:

B_a = readmatrix('test.txt'); %all done. It figures out the number of headerlines on its own.

[Danupon Subanapong]

Thank you so much!! It helps a lot