What is the difference in these errors?
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In a code I am writing, I keep getting the error:
In an assignment A(:) = B, the number of elements in A and B must be the same.
And I can not find anyone else who has this error. The one I can find is:
In an assignment A(I) = B, the number of elements in A and B must be the same.
Could someone please explain the difference in these errors to me?
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James Tursa
2015-4-3
编辑：James Tursa
2015-4-3
E.g., one way to get these errors:
>> A = rand(3)
A =
0.9649 0.9572 0.1419
0.1576 0.4854 0.4218
0.9706 0.8003 0.9157
>> I = A<0.5
I =
0 0 1
1 1 1
0 0 0
>> A(:) = [1 2 3]
In an assignment A(:) = B, the number of elements in A and B must be the same.
>> A(I) = [1 2 3]
In an assignment A(I) = B, the number of elements in B and I must be the same.
In one case, you are attempting to assign to matrix A using the equivalent of linear indexing and the number of elements doesn't match.
In the other case, you are using a logical matrix to indicate the element positions to replace, and again the number of elements doesn't match.
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