How to loop rand number without repition?

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Muhammad Sam'an
Muhammad Sam'an 2020-9-30
评论： Steven Lord 2020-10-1
I Have
set phi = [ 1,2,3,4,5,6,7,8,9,10,11,12]
i want rand phi with looping with requirment for each iteration resulted single rand number without repitition?
How should i do ?

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回答（1 个）

madhan ravi
madhan ravi 2020-9-30
doc randperm
  2 个评论
Muhammad Sam'an
Muhammad Sam'an 2020-9-30
thank you, but that i need single number rand
my listing math lab code
clc;clear;close all;
c=[10 2 20 11
12 7 9 20
4 14 16 18];
s=[15
25
10
];
d=[5 15 15 15];
[m,n]=size(c);
x=zeros(m,n);
phi=1:m*n
for i=1:m*n
k1 = randperm(length(phi))
ii=[1+mod((k1-1),m)]
j=[1+mod((k1-1),n)]
x(ii,j)=min(s(ii),d(j))
s(ii)= s(ii)-x(ii,j)
d(j)= d(j)-x(ii,j)
end
Steven Lord
Steven Lord 2020-10-1
"Shuffle" the vector before you enter the loop. Inside the loop draw the next element of the vector that you haven't used yet.
r = randperm(52);
for k = 1:5
fprintf("Drawing card %d.\n", r(k))
end

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