Concatenate along singleton dimension?
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Hi,
Is there a single-step way to concatenate two vectors along the singleton dimension? For example, a 10x1 vector and a 1x25 vector. In some of my scripts the dimensions seem to be unpredictable for reasons I don't feel like digging into, and I have to use reshape every time I want to concatenate.
Thanks.
2 个评论
David McVea
2016-7-14
Stephen23
2016-7-14
In your mind you might know what you want, but our crsytal balls are a little foggy today. Please give us some examples with both input and output vectors so that we can test our code with.
采纳的回答
Azzi Abdelmalek
2016-7-14
A=rand(5,1)
B=rand(1,4)
out=[A(:);B(:)]
4 个评论
David McVea
2016-7-14
Azzi Abdelmalek
2016-7-14
编辑：Azzi Abdelmalek
2016-7-14
do you mean the same dimension? if yes how to complete the missing data?
Guillaume
2016-7-14
As far as I understand, Azzi's answer fills the brief. It reshapes both vectors into column vectors and concatenate them vertically. It therefore does not matter which dimension is the singleton one.
Of course, having code that generates vectors of unpredictable shape is not a good design, so I would fix that first. It could simply be forcing the output to be a column vector with:
out = out(:);
David McVea
2016-7-14
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