Log-Sum-Exp (LSE)

Collaboration diagram for Log-Sum-Exp (LSE):

Functions
f32_t	tpt_lse_f32 (const f32_t *aInData, uint32_t aCount)
	Log-Sum-Exp of the floating-point vector.
f64_t	tpt_lse_f64 (const f64_t *aInData, uint32_t aCount)
	Log-Sum-Exp of the floating-point vector.

Detailed Description

The LSE function computes the logarithm of the sum of the exponentials of a vector. The behavior can be defined as follows:

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

Function Documentation

tpt_lse_f32()

f32_t tpt_lse_f32	(	const f32_t *	aInData,
		uint32_t	aCount )

Log-Sum-Exp of the floating-point vector.

Parameters

[in]	aInData	pointer of the input vector
[in]	aCount	number of elements in a vector

Returns

f32_t

Log-Sum-Exp of the floating-point vector.

Parameters

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

Returns

Computation of the LogSumExp

tpt_lse_f64()

f64_t tpt_lse_f64	(	const f64_t *	aInData,
		uint32_t	aCount )

Log-Sum-Exp of the floating-point vector.

Parameters

[in]	aInData	pointer of the input vector
[in]	aCount	number of elements in a vector

Returns

f64_t