cat matlab 以特定维链接矩阵

cat - Concatenate arrays along specified dimension

Syntax

C = cat(dim, A, B)
C = cat(dim, A1, A2, A3, A4, ...)

Description

C = cat(dim, A, B)concatenatesthe arrays A and B along arraydimension dim.

C = cat(dim, A1, A2, A3, A4, ...)concatenatesall the input arrays (A1,A2, A3, A4, and so on) along arraydimension dim.

For nonempty arrays, cat(2, A, B) is thesame as [A, B], and cat(1, A, B) isthe same as [A; B].

Tips

When used with comma-separated list syntax, cat(dim,C{:}) or cat(dim, C.field) is a convenientway to concatenate a cell or structure array containing numeric matricesinto a single matrix.

For information on combining unlike integer types, integerswith nonintegers, cell arrays with non-cell arrays, or empty matriceswith other elements, seeCombining Unlike Classes in the Programming Fundamentalsdocumentation.

Examples

Given

A =               B =     1     2                   5     6     3     4                   7     8

concatenating along different dimensions produces

The commands

A = magic(3); B = pascal(3);C = cat(4, A, B);

produce a 3-by-3-by-1-by-2 array.