Effacer les filtres
Effacer les filtres

Vertical to horizontal data

2 vues (au cours des 30 derniers jours)
Ana
Ana le 26 Avr 2014
Commenté : Ana le 26 Avr 2014
Hello,
I have a column of data with several rows (about 125000).
I want to copy that data, every 62 rows, to separate columns. So I would have from row 1 to 62 in column A, from row 63 to 125 in column B, from row 126 to 188 in column C and so on until there is no more data.
Is there an easy way to do this? Thank you so much in advance! (I'm new in matlab)

Réponse acceptée

Azzi Abdelmalek
Azzi Abdelmalek le 26 Avr 2014
a=rand(12500,1); % Example
n=numel(a);
ii=mod(-n,62),
a(end+1:end+ii)=nan
out=reshape(a,62,[])
  1 commentaire
Ana
Ana le 26 Avr 2014
Works perfectly, thank you so much!!

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Plus de réponses (2)

the cyclist
the cyclist le 26 Avr 2014
You probably want the reshape() function.
doc reshape
for syntax details.

Salaheddin Hosseinzadeh
Salaheddin Hosseinzadeh le 26 Avr 2014
As mentioned, you need to reshape the matrix, but for your data size, which is 125000, since it's not a multiply of 62 you need to pad it with (54) zeros and then reshape it
roughly it's gonna be like
data(1,end:end+54) = 0; % adds 54 zeros to the end of data to be multiply of 62
reshape(data,[],62);
I didn't check the code, might have minor problems ;)

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