Creating random vector with 10 different lengths

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Chelles Rees
Chelles Rees el 10 de Nov. de 2019
Comentada: Chelles Rees el 10 de Nov. de 2019
I can't seem to ceate a random vector from 1-10k then 1-20k then 1-30k consectuively until 100k logging different values.
Here is the code I have so far:
inc=[10000 20000 30000 40000 50000 60000 70000 80000 90000 100000];
for l=1:length(inc) %creating a loop to go through the 10 values of inc
vec1 = randi(1,inc(l)); %geenrating random vector from 1-respective value of inc
Any help would be appreciated

Respuesta aceptada

Image Analyst
Image Analyst el 10 de Nov. de 2019
You need to tell it either one row or one column. Try this:
inc = [10000, 20000 30000, 40000, 50000, 60000, 70000, 80000, 90000, 100000];
maxValue = 100000; % Whatever you want the potential max value in the vector to be.
for k = 1 : length(inc) % Creating a loop to go through the 10 values of inc
% Generating random vector from 1-respective value of inc.
vec1 = randi(maxValue, 1, inc(k)); % or randi(maxValue, inc(k), 1);
fprintf('Made a vector with %d rows and %d columns.\n', size(vec1, 1), size(vec1, 2));
end

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per isakson
per isakson el 10 de Nov. de 2019
Documentation on randi says:
X = randi(imax,n) returns an n-by-n matrix of pseudorandom integers drawn from the discrete uniform distribution on the interval [1,imax].
Thus, randi(1,inc(l)); will return a matrix of ones the same as ones(inc(l)).
vec1 is overwritten in each iteration of the loop. Is its value stored in another variable?

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