Removing element of array at random

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Ndugatuda Maxwell
Ndugatuda Maxwell 2021-12-31
评论： Ndugatuda Maxwell 2021-12-31
I have a 200 x 1 matrix of random numbers and I want to remove 10 numbers from the array at random.
Here is sample data i used:
a = 0; %mean
b = 1; %standard deviation
random_num = b*randn(200,1)+a; %generates random numbers
How can I remove, at random 10 numbers from the random_num variable?

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Stephen23
Stephen23 2021-12-31
Ran in:
a = 0;
b = 1;
rn = b*randn(200,1)+1;
ix = randperm(200,10) % indices of elements to remove
ix = 1×10
145 76 40 81 116 61 82 94 113 182
rn(ix) = []; % remove elements

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