Selecting one array out of three.
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I have three arrays, including A=[1 2 3 4 5 6 7 8 9 0 3 4 5 6]; B=[4 5 6 7 8 6 7 8 9 1 3 4 5 0]; C=[5 6 7 8 9 0 0 9 5 5 5 5 6 7]; Now I need to store one array in D i.e., D= any of one from three. Kindly help me out.
采纳的回答
Or:
A = [1 2 3 4 5 6 7 8 9 0 3 4 5 6];
B = [4 5 6 7 8 6 7 8 9 1 3 4 5 0];
C = [5 6 7 8 9 0 0 9 5 5 5 5 6 7];
Pool = {A, B, C};
D = Pool{randi([1, numel(Pool)])}
This is flexible compared to the swicth method: The Pool can have different sized without the need to adjust the code.
更多回答（2 个）
Adam
2017-7-20
n = randi( 3 )
switch ( n )
case 1
D = A;
case 2
D = B;
case 3
D = C;
end
If your 3 arrays where all in a single named variable as e.g. columns of a 2d array it would be neater, but not so much with named arrays.
John BG
2017-7-20
Hi Shane
the best way to randomly choose one of those vectors with variable length is to put them in a cell
A=[1 2 3 4 5 6 7 8 9 0 3 4 5 6];
B=[4 5 6 7 8 9 1 3 4 5 0];
C=[5 6 7 8 9 0 0 9 5 5 5 5 6 7];
D=randi([1 numel(A2)],1,1)
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thanks in advance
John BG
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