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‒m timestat
This shows ensemble statistics for each leadtime. The main options are -a and -tr
To show the ensemble mean as a function of leadtime:
wxgen verif noweight.nc -v 0 -m timestat
By default, -m timestat
shows the mean across the ensemble. Use -a
to specify a different aggregator, such as median, std, variance, range, iqr, and a few others:
wxgen verif sim1.nc sim2.nc -v 0 -m timestat -a variance
To show the fraction of members indicating a summer day (daily average temperatur above 10°C [this will be changed in the future]):
wxgen verif sim1.nc sim2.nc -v 0 -m timestat -tr summerday
Wxgen first transforms the variable into a 0 or 1 value, and then averages these values (since the default aggregator is the mean). The value can therefore be interpreted as the fraction of days that are summer days.
-tr
can be combined with -a
. That is -tr summerday -a median
will give the median value of the summerday binary values, which will therefore always be 0 or 1 (so perhaps not as useful).
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