Filter löschen
Filter löschen

Error using randi Size inputs must be scalar (Matlab)

1 Ansicht (letzte 30 Tage)
high speed
high speed am 12 Apr. 2021
Kommentiert: Jan am 13 Apr. 2021
I have entries parameters A and B, and I have to obtain C with for loop, where C is the random subset of B of size Ai
I program this
for i=1:n
C=randi([0,1],B,A(i));
end
But I get the error (Error using randi ==> inputs must be scalar)
How can I fixe the problem

Akzeptierte Antwort

Jan
Jan am 12 Apr. 2021
Bearbeitet: Jan am 12 Apr. 2021
"C is the random subset of B of size Ai" :
for i = 1:n
% Without repetitions:
C = B(randperm(numel(B), A(i)));
% Or with repetitions:
C = B(randi([1, numel(B)], 1, A(i)));
... use C now
end
  5 Kommentare
high speed
high speed am 13 Apr. 2021
@Jan Unfortunately, that's not what I want. Because I must program in a way that C is the random subset of B of size Ai. And in your example you didn't consider the size Ai
Jan
Jan am 13 Apr. 2021
@high speed: Sorry, what? Yes, in my example, I've used 4 to clarify what "repetition" means. You have asked for this detail. But the code in my answer does contain A(i).

Melden Sie sich an, um zu kommentieren.

Weitere Antworten (0)

Kategorien

Mehr zu Creating and Concatenating Matrices finden Sie in Help Center und File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by