size

Size of an object.

Syntax

  • s = size(X)

  • sdim = size(X, dim)

  • vec = size(X, dims)

  • [r, c] = size(X)

  • [s1, ... , sn] = size(X)

Input argument

  • X - a variable

  • dim - a variable: a positive integer to get the dimth dimension.

  • dims - a variable: a vector of positive integer to get the dimth dimensions.

Output argument

  • s - a row vector whose elements contain the length of the corresponding dimension of X.

  • sdim - the length of dimension dim.

  • vec - length of dimensions dims.

  • [r, c] - number of rows and columns.

  • [s1, ... , sn] - numbers with integer values.

Description

Examples

X = rand(3, 4, 5, 6);
size(X)
size(X, 3)
size(X, [2 4])
[r, c] =size(X)
[s1, s2, s3, s4] = size(X)
size(cell(4,3))

See also

length, ndims.

History

Author

Allan CORNET

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