wav dimentions are
wav = 5001*1
and I want to change it as wav = 5001*5
How I can reshape it?

 Réponse acceptée

Steven Lord
Steven Lord le 28 Oct 2020

1 vote

So you want to take 5001 values and generate 25005 (5001 times 5) values using those values. How do you want to generate the additional 20004 values?
Make duplicate copies?
x = (1:6).'
y = repmat(x, 1, 5)
Offset the copies by a certain amount? This approach uses implicit expansion; if you're using an older release you could use bsxfun.
x = (1:6).'
y = x + (0:10:40)
Pad with 0 values or with random data?
x = (1:6).'
y = [x, zeros(size(x, 1), 5)]
z = [x, rand(size(x, 1), 5)]
w = [x, randi([7 11], size(x, 1), 5)]
Something else? If so, please explain in detail how you want to generate the additional values.

3 commentaires

Nisar Ahmed
Nisar Ahmed le 28 Oct 2020
I want to generate duplicate values (5000) in five columns rather than one...
Elijah McNeil
Elijah McNeil le 28 Oct 2020
His code does that, Just write this.
x = (1:5000).';
wav = repmat(x, 1, 5).
Nisar Ahmed
Nisar Ahmed le 28 Oct 2020
Elijah McNeil, thanks dear, Now it is working

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Plus de réponses (1)

Elijah McNeil
Elijah McNeil le 28 Oct 2020
Modifié(e) : Elijah McNeil le 28 Oct 2020

0 votes

This should work
wav = 5001*1
wav = wav*5

5 commentaires

Nisar Ahmed
Nisar Ahmed le 28 Oct 2020
In wav, it is one column matrix and I want to convert it into 5 column matrix...
Elijah McNeil
Elijah McNeil le 28 Oct 2020
Modifié(e) : Elijah McNeil le 28 Oct 2020
OK, you can't do that unless wav has 5 values. Example:
wav = [5000; 6000;7000; 8000; 9000] % that equals 1 column and 5 rows
wav = wav' % that creates 5 columns and 1 row
reshape(wav,1,5) % this also creates 5 columns and 1 row
Nisar Ahmed
Nisar Ahmed le 28 Oct 2020
It is not working, perhaps I'm unable to explain my point...
the size of wav is 5000 1 and I want reshap it as 5000 5
Elijah McNeil
Elijah McNeil le 28 Oct 2020
Wait 5000 rows and 1 column?
Nisar Ahmed
Nisar Ahmed le 28 Oct 2020
5000 rows and 5 columns, each column is duplicate of other.

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