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zero padding column of data

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Perry Robertson
Perry Robertson 2015-7-24
回答： Perry Robertson 2015-7-24
How do I extend an existing matrix (200x1 double) with a specific number of zeros? i.e. pad the end of the column

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回答（3 个）

Perry Robertson
Perry Robertson 2015-7-24
Solution with calculation of zeros to add:
v = rand(200, 1); % original
finalSize = 400; % the size needed
Nz = finalSize - numel(v); % number zeros needed
v = [v; zeros(Nz,1)]; % vector with zero padding
James Tursa
James Tursa 2015-7-24
n = number of elements to pad with 0's
x = your 200 x 1 double array
x(end+1:end+n) = 0;
Star Strider
Star Strider 2015-7-24
Probably the easiest way:
v = rand(200, 1); % Original Vector
Nz = 10; % Number Of Zeros To Pad
v = [v; zeros(Nz,1)]; % Zero-Padded Vector

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