how to get the usual form of a matrix from a txt file?

1 view (last 30 days)
hello, I have a matrix defined in a txt file as it follows:
row column value
1 1 -4.630
2 1 -4.307
3 1 -3.804
1 2 -4.630
2 2 -4.741
3 2 -4.630
1 3 -3.804
2 3 -4.307
3 3 -4.630
and I would like to put it back into the the matrix form provided by matlab (the square form), any suggestions ? Thank you in advance!

Accepted Answer

KSSV
KSSV on 23 Nov 2016
data = importdata('data.txt');
num = data.data ;
matrix = reshape(num(:,3),3,[])
doc reshape

More Answers (1)

Ano
Ano on 23 Nov 2016
what if the file has got some text before the matrix, how can I still extract the matrix ?? thank you in advance !
  2 Comments
KSSV
KSSV on 23 Nov 2016
The above code has to work if the text exists before the matrix. I checked the above, copying your data with text in the file.
Ano
Ano on 23 Nov 2016
I would appreciate if you could try with the attached file which contains the headers, for me it does not work? any suggestions. thank you

Sign in to comment.

Categories

Find more on Characters and Strings in Help Center and File Exchange

Community Treasure Hunt

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

Start Hunting!