stdev

The C++ interface for standard deviation. More...

array	stdev (const array &in, int dim=-1)
	Standard deviation along a dimension. More...
template<typename ty >
ty	stdev (const array &input)
	Standard deviation of all elements in a vector. More...

Detailed Description

The C++ interface for standard deviation.

Returns the standard deviation of a set of elements

Function Documentation

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

Standard deviation along a dimension.

Parameters

[in]	in	The input matrix
[in]	dim	dimension along which to operate (-1 indicates first non-singleton dimension)

Returns

The standard deviation of values along the dimension dim in the input

Examples:

examples/pde/fdtd.cpp.

ty af::stdev

(

const array &

input

)

Standard deviation of all elements in a vector.

array a = array(seq(5));
print(a);  //  0  1  2  3  4
float m = stdev<float>(a);
printf("%f\n",m); // 1.581

Parameters

[in]

input

Returns

The standard deviation of all values in the input