Split a row into several rows
26 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
Hi all, I am trying to split a single-row matrix say for example
A = [1,2,3,4,17,18,19,20,33,34,35,36,49,50,51,52,65,66]
into a multiple-row matrix B, the maximum number of columns in B being 5. I would expect to get something like
B = [1,2,3,4,17;18,19,20,33,34;35,36,49,50,51;52,65,66]
I tried using the reshape function as below but it's giving an error saying
Product of known dimensions, 5, not divisible into total number of elements, 18
Please any suggestion would be appreciated.
%
% I would like to get
% B = 1 2 3 4 17
% 18 19 20 33 34
% 35 36 49 50 51
% 52 65 66
%
% code
A = [1,2,3,4,17,18,19,20,33,34,35,36,49,50,51,52,65,66];
B = reshape(A, 5, []);
0 Commenti
Risposta accettata
Stephen23
il 14 Gen 2016
Modificato: Stephen23
il 14 Gen 2016
A matrix cannot have gaps or missing values: every row must be the same length, just as every column must too. So you will have to join some values onto A before reshaping it:
>> N = 5;
>> reshape([A,nan(1,N-mod(numel(A),N))],[],N)
ans =
1 17 33 49 65
2 18 34 50 66
3 19 35 51 NaN
4 20 36 52 NaN
Più risposte (1)
Ilham Hardy
il 14 Gen 2016
The error message indicates the error very clear. What will be the dimension of the B matrix then? 5x4.9 matrix?
Unless you pad the A matrix beforehand with
A = [A,NaN,NaN];
the reshape command will not works (obviously).
0 Commenti
Vedere anche
Categorie
Scopri di più su Logical in Help Center e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!