Filling matrix with zeros whilst retaining original value

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AA 2020-8-22
评论： Bjorn Gustavsson 2020-8-23
Hi
I got a 1x14 matrix filled with random numbers. I want the remaining entires to be filled with zero so that I get a 1x180 matrix whils the original 14 values are kept.
thanks

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Bjorn Gustavsson
Bjorn Gustavsson 2020-8-22
Something like this?
a = randn(1,14);
a(end+1:180) = 0;
HTH
  2 个评论
Walter Roberson
Walter Roberson 2020-8-22
a = randn(1,14);
a(180) = 0;
Everything between 15 and 179 will be filled with the default value 0.
Bjorn Gustavsson
Bjorn Gustavsson 2020-8-23
...and Walter's solution is "about a factor of 2 faster" for growing the array to 1 x 180, my solution adapts to other values, use either.

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