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

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Ano
Ano 2016-11-23
评论： Ano 2016-11-23
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!

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采纳的回答

KSSV
KSSV 2016-11-23
data = importdata('data.txt');
num = data.data ;
matrix = reshape(num(:,3),3,[])
doc reshape

更多回答（1 个）

Ano
Ano 2016-11-23
what if the file has got some text before the matrix, how can I still extract the matrix ?? thank you in advance !
  2 个评论
KSSV
KSSV 2016-11-23
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 2016-11-23
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

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