nrf_dsp_deriv_var_f32()

void nrf_dsp_deriv_var_f32	(	const flt32_t *	p_input,
		uint16_t	num,
		nrf_dsp_derivative_var_f32_t *	p_deriv_variance )

#include <include/nrf_edgeai/dsp/statistic/nrf_dsp_var.h>

Calculate Derivatives of variance in the floating-point vector.

This function uses internal accumulator of flt32_t size, for calculating sum of squares of values, so it will lose precision if values ​​less than 10e-4

Parameters

[in]	p_input	Pointer to the input vector
[in]	num	Number of samples in input vector
[out]	p_deriv_variance	Calculated derivatives of variance nrf_dsp_derivative_var_f32_t