sum

Find the sum of values in the input. More...

Functions
AFAPI array	sum (const array &in, const int dim=-1)
	C++ Interface for sum of elements in an array. More...
template<typename T >
T	sum (const array &in)
	C++ Interface for sum of all elements in an array. More...
AFAPI af_err	af_sum (af_array *out, const af_array in, const int dim)
	C Interface for sum of elements in an array. More...
AFAPI af_err	af_sum_all (double *real, double *imag, const af_array in)
	C Interface for sum of all elements in an array. More...

Detailed Description

Find the sum of values in the input.

This function performs the operation across all batches present in the input simultaneously.

Function Documentation

AFAPI af_err af_sum	(	af_array *	out,
		const af_array	in,
		const int	dim
	)

C Interface for sum of elements in an array.

Parameters

[out]	out	will contain the sum of all values in in along dim
[in]	in	is the input array
[in]	dim	The dimension along which the add operation occurs

Returns

AF_SUCCESS if the execution completes properly

AFAPI af_err af_sum_all	(	double *	real,
		double *	imag,
		const af_array	in
	)

C Interface for sum of all elements in an array.

Parameters

[out]	real	will contain the real part of adding all elements in input in
[out]	imag	will contain the imaginary part of adding all elements in input in
[in]	in	is the input array

Returns

AF_SUCCESS if the execution completes properly

Note

imag is always set to 0 when in is real

AFAPI array af::sum	(	const array &	in,
		const int	dim = -1
	)

C++ Interface for sum of elements in an array.

Parameters

[in]	in	is the input array
[in]	dim	The dimension along which the add operation occurs

Returns

result of sum all values along dimension dim

Note

dim is -1 by default. -1 denotes the first non-singleton dimension.

Examples:

deep_belief_net.cpp, integer.cpp, kmeans.cpp, logistic_regression.cpp, naive_bayes.cpp, rainfall.cpp, rbm.cpp, and vectorize.cpp.

T af::sum

(

const array &

in

)

C++ Interface for sum of all elements in an array.

Parameters

[in]

in

is the input array

Returns

the sum of all values of in