matlab提取多列,一列变多列的matlab程序

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)).

See also squeeze, shiftdim, colon.

Overloaded methods:

gf/reshape

lti/reshape

codistributed/reshape

xregpointer/reshape

uss/reshape

umat/reshape

ufrd/reshape

ndlft/reshape

categorical/reshape

Reference page in Help browser

doc reshape