How to read a text file and create a structure array?

50 views (last 30 days)
Hey,
I have a large data set which is divided into 3 columns and and in two separate text files. I would like to read the data from text files, add the data together so that it is in continuous columns and create a structure from it.
The text files' data is like:
$ABC, 00025, 39.24
. , . , .
. , . , .
I tried this code:
fid = fopen('mydata.txt');
C = textscan(fid, '%s%d8%f32');
fclose(fid);
f = {'Title','Time','Dist'};
s = cell2struct(C,f,2);
but it returns a blank structure array. Can somebody please tell me what is wrong with the code?
Thanks.

Accepted Answer

ChristianW
ChristianW on 13 Feb 2013
Try to skip the second comma.
C = textscan(fid, '%s%d8%*s%f32');
  2 Comments
Jay
Jay on 13 Feb 2013
Thanks, works like a charm.
Now what if I have a second set of similar data which is a continuation of the first. Say mydata2.txt. How do I read this into matlab as well and add it to the first data set to create a single cell array?
ChristianW
ChristianW on 14 Feb 2013
A simple possibility is to load the 2nd file in a 2nd cell and combine them in a for loop.
...
fid = fopen('mydata2.txt');
C2 = textscan(fid,'%s %d8 %f32','delimiter',',');
fclose(fid);
for i = 1:numel(C1)
C{i} = [C1{i}; C2{i}];
end
...

Sign in to comment.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!