Help me to optimise or vectorize the code
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Hi
Here is a snippet of the code below. I wonder if there is anything else that the code can be optimised or vectorized especially between line 2 to line 5?
1 outSignal = y11.*-d11-y12.*d12+x11.*n11+ x12.*n12;
2 y12 = y11(:);
3 y11 = outSignal(:);
4 x12 = x11(:);
5 x11 = inSignal(:);
6 output = outSignal(:);
I would be greatly appreicated if you can offer me suggestion.
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Answers (1)
Walter Roberson
on 28 Jan 2014
The (:) operator is one of the fastest operations in MATLAB, as all it needs to do is create a new header and increment the usage count (for copy-on-write purposes): in particular, the data block pointer is copied without needing to copy or duplicate the data itself. All that is being changed is the header indicating how the data is organized, not the data itself.
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