Why do I get the "Subscripted assignment dimension mismatch" error message?
156 次查看(过去 30 天)
显示 更早的评论
MathWorks Support Team
2012-2-27
编辑: MathWorks Support Team
2021-12-13
Why do I get the following error message sometimes:
ERROR: ??? Subscripted assignment dimension mismatch.
??? In an assignment A(I) = B, the number of elements in B and
I must be the same.
ERROR:
采纳的回答
MathWorks Support Team
2021-12-10
编辑:MathWorks Support Team
2021-12-13
This error occurs when you attempt to assign elements to an existing array, but the size of the variable you are trying to assign is not compatible with the existing array. For example, the following code snippet produces this error:
A = [1 2 3; 4 5 6];
B = [7 8 9 10];
A(2,:) = B
In this case, 'A' has size 2x3, that is, 2 rows and 3 columns. The vector 'B' has size 1x4, 1 row and 4 columns. The assignment statement attempts to replace the second row of 'A' with the row vector 'B', but this is not possible because 'B' has 4 columns, and 'A' only has 3 columns. In order to assign to the second row of 'A', you must use a vector with 3 columns. For example,
B = [11 12 13];
A(2,:) = B
For more information on indexing in MATLAB, see the following documentation page:
0 个评论
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Matrix Indexing 的更多信息
产品
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!