我想把三个三维矩阵合并成一个思维矩阵，且保持举证的一致性不变，请大家教教我用啥方法！谢谢！

Posted 2023-03-21

上面打错了点，是三个三维矩阵合并成一个四维矩阵，且保持矩阵证的一致性不变。特此纠正。

参考技术A 用reshape可以搞定！

reshape把指定的矩阵改变形状，但是元素个数不变，

例如，行向量：
a = [1 2 3 4 5 6]

执行下面语句把它变成3行2列：
b = reshape(a,3,2)

执行结果：
b =
1 4
2 5
3 6

若a=[1 2 3
4 5 6
7 8 9]

使用reshpe后想得到b=[1 2 3 4 5 6 7 8 9]

只需要将a转置一下就可以了：
b=reshape(a',1,9)

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matlab中的解释如下：

RESHAPE Change size.
RESHAPE(X,M,N) returns the M-by-N matrix whose elements
are taken columnwise from X. An error results if X does
not have M*N elements.

RESHAPE(X,M,N,P,...) returns an N-D array with the same
elements as X but reshaped to have the size M-by-N-by-P-by-...
M*N*P*... must be the same as PROD(SIZE(X)).

RESHAPE(X,[M N P ...]) is the same thing.

RESHAPE(X,...,[],...) calculates the length of the dimension
represented by [], such that the product of the dimensions
equals PROD(SIZE(X)). PROD(SIZE(X)) must be evenly divisible
by the product of the known dimensions. You can use only one
occurrence of [].

In general, RESHAPE(X,SIZ) returns an N-D array with the same
elements as X but reshaped to the size SIZ. PROD(SIZ) must be
the same as PROD(SIZE(X)).追问

用在这里不合适啊，我这里很显然元素的个数是变了的啊！

参考资料：http://blog.sina.com.cn/s/blog_5feb3cea0100lz8b.html