Combining 2 matrix of different row numbers but same column numbers.

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Gratitude Kim
Gratitude Kim 2017-7-27
评论： Gratitude Kim 2017-7-27
A = [1 0 0 0 1 0 0 0; 0 1 0 0 0 1 0 0; 0 0 1 0 0 0 1 0; 0 0 0 1 0 0 0 1]
B = [1 1 0 0 0 0 0 0 -2 0 0; 0 1 1 0 0 0 0 0 0 -2 0; 0 0 1 1 0 0 0 0 0 0 -2]
ATotal = [A zeros(4,3)]
Afinal = [ATotal B]
I am having this error. Error using horzcat Dimensions of matrices being concatenated are not consistent.
Error in july6 (line 5) Afinal=[ATotal B]
Appreciate your kind assistance.

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回答（2 个）

Jan
Jan 2017-7-27
编辑：Jan 2017-7-27
How coud we help you? You try to concatenate a [4 x 11] and a [3 x 11] matrix horizontally. But the horizontal concatenation requires the same number of rows.
Perhaps you mean the vertical concatenation:
Afinal = [ATotal; B]
But I cannot guess the intention of the code based on the failing code only.
KL
KL 2017-7-27
Dimensions of ATotal and B are not consistent, look at the number of rows.
Afinal=[ATotal [B; zeros(1,size(B,2))]]

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