How to downsample a vector x by an integer factor M with a single statement such as for loop or conditional statements

2021 9 16
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I have already learned to use downsample(）function. However, are there ways to use statements to downsample a vector?

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Chunru
Chunru 2021-9-16
Ran in:

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Ran in:
a = 1:10;
b = downsample(a, 3) % use downsample
b = 1×4
1 4 7 10
c = a(1:3:end) % statement
c = 1×4
1 4 7 10

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