how can slect randomly numbers from two array s

 A=[3818.36,7632.40,11446.44,15260.48,19074.52];  
B=[657.15,1089.15,1521.15,1953.15,2385.15];

I have two arrays with 5 elements each and want to select 5 numbers randomly from both arrays, please help me how can select any 5 number from both A & B

[Jan]

With repetitions or without?

Answer 1

[Gopichandh Danala]

A=[3818.36,7632.40,11446.44,15260.48,19074.52];  
B=[657.15,1089.15,1521.15,1953.15,2385.15]; 

vals = zeros(1,length(A));
for i = 1:length(A)
    idx = randperm(2,1);
    if idx == 1
        vals(i) = A(i);
    else
        vals(i) = B(i);
    end
end
disp(vals)

Answer 2

[Adam]

idx = randperm(10,5);
C = [A, B];

selectedNums = C(idx);

or to be a little more generic and avoid ugly hard-coded numbers that can be taken from the data instead:

C = [A, B];
idx = randperm(numel(C),5);
selectedNums = C(idx);

[usman younus]

A=[3818.36,7632.40,11446.44,15260.48,19074.52]; B=[657.15,1089.15,1521.15,1953.15,2385.15];

Adam i need one value from each index of A&B justlike on index 1, I need 3818.36 or 657.15, and from index2 i need 7632.40 0r 1089.15 but your suggested code is giving 5 values from all values of A&B please hlep

Answer 3

[Andrei Bobrov]

A=[3818.36,7632.40,11446.44,15260.48,19074.52]; 
B=[657.15,1089.15,1521.15,1953.15,2385.15];
C = [A;B];

out = C(sub2ind(size(C),randi([1,2],1,5),1:5));