repeating elements of vector by the no. of times equal to elements in another vector

Question

Haneya Qureshi 2018-4-3

0
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https://ww2.mathworks.cn/matlabcentral/answers/392257-repeating-elements-of-vector-by-the-no-of-times-equal-to-elements-in-another-vector

回答： Birdman 2018-4-3

i have a vector v. i have another vector of same length, r. i want to take first element of v, v(1), repeat it r(1) times, store it in a big vector W. then i want to take second element of v, v(2), repeat it r(2) times, and append W with it. and so on until all elements in v are finished.

i want this:

W= [ [v(1) repeated r(1) times] [v(2) repeated r(2) times] .......[v(n) repeated r(n) times] ] where n is the length of r and v. How can i do this?