Entropy

Collaboration diagram for Entropy:

Functions
f32_t	tpt_entropy_f32 (const f32_t *aIndata, uint32_t aCount)
	Entropy of the floating-potint vector.
f64_t	tpt_entropy_f64 (const f64_t *aIndata, uint32_t aCount)
	Entropy of the floating-potint vector.

Detailed Description

The entropy function computes the entropy of a vector. The behavior can be defined as follows:

TPT DSP library only supports the entropy function for floating-point data.

Function Documentation

tpt_entropy_f32()

f32_t tpt_entropy_f32	(	const f32_t *	aIndata,
		uint32_t	aCount )

Entropy of the floating-potint vector.

Parameters

[in]	aIndata	points to the input vector.
[in]	aCount	size of the vectors.

Returns

f32_t

E = -sum (P .* ln (P))

Entropy of the floating-potint vector.

Parameters

[in]	aIndata	points to the input vector
[in]	aCount	number of samples in input vector

Returns

Entropy

tpt_entropy_f64()

f64_t tpt_entropy_f64	(	const f64_t *	pSrcA,
		uint32_t	blockSize )

Entropy of the floating-potint vector.

Parameters

[in]	aIndata	points to the input vector.
[in]	aCount	size of the vectors.

Returns

f64_t

E = -sum (P .* ln (P))

Entropy of the floating-potint vector.

Parameters

[in]	pSrcA	Array of input values.
[in]	blockSize	Number of samples in the input array.

Returns

Entropy -Sum(p ln p)