Azzera filtri
Azzera filtri

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

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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!

Risposta accettata

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

Più risposte (1)

Ano
Ano il 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 Commenti
KSSV
KSSV il 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 il 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

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