SIZE Function

Returns a vector containing size and type information for the given expression.

result = SIZE(expr)

expr The expression to be evaluated.

result A vector containing size and type information for expr.

Dimensions Returns a longword vector containing the size of each dimension of expr.

Nelements Returns the total number of elements in expr.

Ndimensions Returns the number of dimensions in expr. A zero is returned if expr is scalar.

Type Returns the type code of expr.

The returned vector is of longword type. It has the following form:

[D, S₁, S₂, ..., S_p, T, E]

where D is the number of dimensions of EXPRESSION (zero if EXPRESSION is scalar or undefined); S_i is the size of dimension i (not present if EXPRESSION is scalar or undefined); T is the type code, encoded as shown in the table below; and E is the number of elements in EXPRESSION.

See Also

N_ELEMENTS, N_PARAMS, N_TAGS, TAG_NAMES