【求助】单元型变量中的length和ndims。

[anonymous17]

初学，请各位帅哥靓妹不要见笑，多多帮助。谢谢了。
请问m*n*....矩阵的length是不是m,n,....中最大的呢？
a=[1 2 3;2 3 4;3 5 6];
b=[1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 8 9 9 10];
c='asdsdasdaf';
d=['1','a','3'];
e=[1:4];
f='122r13f';
A={a,b,c;d,e,f};
B=cellfun('ndims',A);
为什么返回值都是2呢？
a不是3*3吗？。。。。

初学者的菜鸟问题，请多多包涵，谢谢，多谢解答。

[yesman]

help length
LENGTH Length of vector.
LENGTH(X) returns the length of vector X. It is equivalent
to MAX(SIZE(X)) for non-empty arrays and 0 for empty ones.

意思是length=MAX(SIZE(X))，不清楚size和max的话看下面：
help size
SIZE Size of array.
D = SIZE(X), for M-by-N matrix X, returns the two-element
row vector D = [M, N] containing the number of rows and columns
in the matrix. For N-D arrays, SIZE(X) returns a 1-by-N
vector of dimension lengths. Trailing singleton dimensions
are ignored.

For vectors, MAX(X) is the largest element in X. For matrices,
MAX(X) is a row vector containing the maximum element from each
column. For N-D arrays, MAX(X) operates along the first
non-singleton dimension.

[yesman]

对于你的问题：
>> a=[1 2 3;2 3 4;3 5 6];
>> length(a)

ans =

3

>> length(b)

ans =

20

>> length(c)

ans =

10
......

[anonymous17]

非常感谢您的回复，后面的那个ndims我不清楚，有劳再解答一下，谢谢。。。。。。。