How to extract random elements from an array?

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?

[Stephen23]

"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.

Answer 1

[Walter Roberson]

d([1 3 6])

If you want 3 at random then,

d( randperm(length(d),3) )

Answer 2

[Badavath Swetha]

d ([1 3 6])