Padding Zeros to an Array

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Tahmid Abdullah
Tahmid Abdullah el 28 de Jun. de 2020
Comentada: Tahmid Abdullah el 28 de Jun. de 2020
Question 1
I have a vector of length 100. I want to add two zeros after each element, to create a new vector of length 300.
(b) Write the Matlab code to do this.
%Example
b=1:1:100;
%Adding 2 zeros after each element
j=1;
for i=1:1:length(b)
b_up(j)= b(i);
j=j+1;
b_up(j)=0;
j=j+1;
b_up(j)=0;
j=j+1;
end
Question 2
i got the output of b=1x300 double as required but I was wondering if there was an easier and faster method in padding 'n' zeros after each element?
Question 3
For example: Padding one zero after each element:
b_up = reshape([b; zeros(size(b))],1,[]);
Is there any way to modify the above code to pad 'n' zeros instead of one zero after each element?
Many thanks

Respuesta aceptada

madhan ravi
madhan ravi el 28 de Jun. de 2020
n = 10; % an example
b_up = reshape([b; zeros(n, size(b,2))],1,[]);

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