Determine percent of array elements which meet condition

How can I check if a certain percentage of the values in an array meet a condition, e.g. are X% of the values of a given logical array=1?

Answer 1

[Star Strider]

A logical array has two states, true=1 or false=0, so al that is necessary is to find the numbers of 1 values with respect to the total number of elements.

TF = randi([0 1], 25) == 1;                 % Create Array
T = nnz(TF)                                 % Number Of 'true' Values

T = 341

T_Pct = 100*T/numel(TF)                     % Percent 'true' Values

T_Pct = 54.5600

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[Gabriel Stanley]

Wonderfull, that last operation was what I was completely blanking on. Thanks!

[Star Strider]

As always, my pleasure!

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