setunique

The C++ interface for setunique. More...

array	setunique (const array &input)
	Unique values. More...
void	setunique (array &values, array &indices, array &locations, const array &input)

Detailed Description

The C++ interface for setunique.

Returns the unique elements of a set.

Function Documentation

array af::setunique

(

const array &

input

)

Unique values.

array input = constant(1,5, 1);
input(1, 0) = 3;
input(2, 0) = 2;
input(3, 0) = 3;
print(input);             // 1 3 2 3 1
array values = setunique(input);
print(values);            // 1 2 3

Parameters

[in]

input

treated as vector

Returns

unique values

void af::setunique	(	array &	values,
		array &	indices,
		array &	locations,
		const array &	input
	)

array input = constant(1,5, 1);
input(1, 0) = 3;
input(2, 0) = 2;
input(3, 0) = 3;
print(input);             // 1 3 2 3 1
array values, indices, locations;
setunique(values, indices, locations, input);
print(values);            // 1 2 3
print(indices);           // 0 2 1
print(locations);         // 0 2 1 2 0
print(input(indices));    // 1 2 3 --> same as values
print(values(locations)); // 1 3 2 3 1 --> same as input

unique elements in a vector and their indicies

Parameters

[out]	values,:	The unique values from the input vector
[out]	indices,:	The index of the first instance of the unique value
[out]	locations,:	Location of each input element in the unique values vector
[in]	input