Mathematical operation on arrays
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Dear All, I hope that all are well. I have 4 column vectors, a b c and d. I would like to write a code that take a random value for the first vector a and using that value to delete each value less than it from the vectors b c and d... delete not transfer them to zeros.
I would highly appreciate your help.
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the cyclist
2021-8-18
% Set random number seed, for reproducible results in this example
rng default
% Make up the input data
N = 7;
a = rand(N,1);
b = rand(N,1);
c = rand(N,1);
d = rand(N,1);
% Pick random value from a
a_rand = a(randi(numel(a)));
% Delete values from other vectors if they are less than a_rand
b(b<a_rand) = [];
c(c<a_rand) = [];
d(d<a_rand) = [];
% Show the sizes of the resulting vectors
size(a)
size(b)
size(c)
size(d)
4 个评论
the cyclist
2021-8-19
Instead of
a_rand = a(randi(numel(a)));
use
a(2)
as the value.
This is a very basic MATLAB question. You might want to watch the MATLAB Onramp tutorial to learn the basics.
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