[rrd-users] HWprediction

[Francisco Gama]

hi

I'm learning RRDtool which I intended to use for Holt Winters
Forecasting in time series.
I made a first approach of a RRD for this purpose but when I
explicitly inject aberrant values I can't make it detect any failures.

rrdtool create monitor.rrd --step 300 DS:SELECTS:GAUGE:1800:0:U
RRA:AVERAGE:0.5:6:18960 RRA:HWPREDICT:1440:0.1:0.0035:20

there are the inserted values: http://pastie.org/486780
results can be found in: http://pastie.org/486782

Shouldn't this tool detect the seasonal patterns and forecast according?
What am I missing?

Thank you
Best Regards
-- 
Francisco Gama

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