MATLAB Function Reference

ones - Create array of all ones

Syntax

Y = ones(n)
Y = ones(m,n)
Y = ones([m n])
Y = ones(m,n,p,...)
Y = ones([m n p ...])
Y = ones(size(A))
ones(m, n,...,classname)
ones([m,n,...],classname)

Description

Y = ones(n) returns an n-by-n matrix of 1s. An error message appears if n is not a scalar.

Y = ones(m,n) or Y = ones([m n]) returns an m-by-n matrix of ones.

Y = ones(m,n,p,...) or Y = ones([m n p ...]) returns an m-by-n-by-p-by-... array of 1s.

Note   The size inputs m, n, p, ... should be nonnegative integers. Negative integers are treated as 0.

Y = ones(size(A)) returns an array of 1s that is the same size as A.

ones(m, n,...,classname) or ones([m,n,...],classname) is an m-by-n-by-... array of ones of data type classname. classname is a string specifying the data type of the output. classname can have the following values: 'double', 'single', 'int8', 'uint8', 'int16', 'uint16', 'int32', 'uint32', 'int64', or 'uint64'.

Example

x = ones(2,3,'int8');

See Also

eye, zeros, complex

onCleanup

open