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