/*****************************************************************************
- * RRDtool 1.2.23 Copyright by Tobi Oetiker, 1997-2007
+ * RRDtool 1.3rc8 Copyright by Tobi Oetiker, 1997-2008
*****************************************************************************
* rrd_hw.c : Support for Holt-Winters Smoothing/ Aberrant Behavior Detection
*****************************************************************************
rrd_value_t *working_average;
rrd_value_t *baseline;
- offset = floor(0.025 * row_count);
+ if (atoi(rrd->stat_head->version) >= 4) {
+ offset = floor(rrd->rra_def[rra_idx].
+ par[RRA_seasonal_smoothing_window].
+ u_val / 2 * row_count);
+ } else {
+ offset = floor(0.05 / 2 * row_count);
+ }
+
if (offset == 0)
return 0; /* no smoothing */
hw_multiplicative_init_seasonality,
hw_calculate_seasonal_deviation,
hw_init_seasonal_deviation,
- 1.0 // identity value
+ 1.0 /* identity value */
};
static hw_functions_t hw_additive_functions = {
hw_additive_init_seasonality,
hw_calculate_seasonal_deviation,
hw_init_seasonal_deviation,
- 0.0 // identity value
+ 0.0 /* identity value */
};
rrd->cdp_prep[cdp_idx].scratch[CDP_scratch_idx].u_val = pdp_val;