What's the best short cut for this in MATLAB?

padColor = [bgColor bgColor bgColor];
padColor = reshape(padColor,1,1,3)开发者_高级运维;  

How to do the above in a more compact way(less code/replication)?

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ones(1,1,3)*bgColor

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Alternatively, using repmat:

padColor = repmat(bgColor,[1,1,3])

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Another one is:

padColor(:,:,1:3) = bgColor