// Cumulative Moving Average
//
// average_cumulative - cma
//
// Average of all data to the current point
//
//   y[t] = ( 1 / k ) * SUM[ t = 1, k ]( x[t] )
//
// Inputs:    1
// Outputs:   1
// Constants: 0


#include <math.h>
#include "ts.h"



ts_parameter_t const ts_average_cumulative_p = { .n_inputs = 1, .n_outputs = 1, .n_constants = 0, .params_size = 0 };


uint_t ts_average_cumulative_offset( ts_constant_t const *c )
{
	( void )c;
	return ( 0 );
}

int ts_average_cumulative(
	fp_t * const *y, uint_t y_n,
	fp_t const * const *x, uint_t x_n,
	uint_t n, ts_constant_t const *c
)
{
	TS_PROLOGUE( ts_average_cumulative_p );
	(void)c;
	fp_t sum = 0;

	for( uint_t i = 0; i < n; ++i )
	{
		sum += x[0][i];
		y[0][i] = sum / ( i + 1 );
	}
	return 0;
}