How to extract random elements from an array?

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Twisha Bansal
Twisha Bansal 2019-12-23
编辑： Badavath Swetha 2021-6-28
For eg., I have a 1d array, d=[1;3;4;6;8;7;8;9;6;7] and I need to extract the first, third and sixth variable. How do I do that?
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Stephen23
Stephen23 2019-12-23
"I need to extract the first, third and sixth variable."
There is only one variable, the vector d.
The vector d has elements, and most likely you are trying to extract those elements.

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采纳的回答

Walter Roberson
Walter Roberson 2019-12-23
d([1 3 6])
If you want 3 at random then,
d( randperm(length(d),3) )

更多回答（1 个）

Badavath Swetha
Badavath Swetha 2021-6-28
编辑：Badavath Swetha 2021-6-28
d ([1 3 6])

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