accum

The C++ interface for accum. More...

array	accum (const array &input, int dim=-1, af_op_t op=sum_t, bool isupcast=false)
	accumulated sum More...

Detailed Description

The C++ interface for accum.

Returns the accumulated sum of a set of elements

Function Documentation

array af::accum	(	const array &	input,
		int	dim = -1,
		af_op_t	op = sum_t,
		bool	isupcast = false
	)

accumulated sum

array a = array(seq(5));
print(a); // 0 1 2 3 4
array b = accum(a);
print(b); // 0 1 3 6 10

Parameters

[in]	input
[in]	dim	dimension along which to operate (-1 indicates first non-singleton dimension)
[in]	op	accumulation type: sum_t addition, prod_t multiplication
[in]	isupcast	perform internal accumulation in double-precision if true (default false)

Returns

cumulative (inclusive) sum along dimension