Yearly statistics

This module computes statistical values over timesteps of the same year. Depending on the chosen operator the minimum, maximum, range, sum, average, variance or standard deviation of timesteps of the same year is written to outfile. The time of outfile is determined by the time in the middle of all contributing timesteps of infile. This can be change with the CDO option –timestat_date <first|middle|last>.

Usage

cdo_yearavg(ifile, complete_only = NULL, ofile = NULL)

cdo_yearmax(ifile, complete_only = NULL, ofile = NULL)

cdo_yearmaxidx(ifile, complete_only = NULL, ofile = NULL)

cdo_yearmean(ifile, complete_only = NULL, ofile = NULL)

cdo_yearmin(ifile, complete_only = NULL, ofile = NULL)

cdo_yearminidx(ifile, complete_only = NULL, ofile = NULL)

cdo_yearrange(ifile, complete_only = NULL, ofile = NULL)

cdo_yearstd(ifile, complete_only = NULL, ofile = NULL)

cdo_yearstd1(ifile, complete_only = NULL, ofile = NULL)

cdo_yearsum(ifile, complete_only = NULL, ofile = NULL)

cdo_yearvar(ifile, complete_only = NULL, ofile = NULL)

cdo_yearvar1(ifile, complete_only = NULL, ofile = NULL)

Arguments

ifile

String with the path to the input file.

complete_only

BOOL - Process the last year only if it is complete

ofile

String with the path to the output file.

Details

yearmin     Yearly minimum
            For every adjacent sequence t_1, ...,t_n of timesteps of the same year it is:

            o(t,x) = min\{i(t',x), t_1<t'<=t_n\}
yearmax     Yearly maximum
            For every adjacent sequence t_1, ...,t_n of timesteps of the same year it is:

            o(t,x) = max\{i(t',x), t_1<t'<=t_n\}
yearminidx  Index of yearly minimum
            For every adjacent sequence t_1, ...,t_n of timesteps of the same year it is:

            o(t,x) = minidx\{i(t',x), t_1<t'<=t_n\}
yearmaxidx  Index of yearly maximum
            For every adjacent sequence t_1, ...,t_n of timesteps of the same year it is:

            o(t,x) = maxidx\{i(t',x), t_1<t'<=t_n\}
yearrange   Yearly range
            For every adjacent sequence t_1, ...,t_n of timesteps of the same year it is:

            o(t,x) = range\{i(t',x), t_1<t'<=t_n\}
yearsum     Yearly sum
            For every adjacent sequence t_1, ...,t_n of timesteps of the same year it is:

            o(t,x) = sum\{i(t',x), t_1<t'<=t_n\}
yearmean    Yearly mean
            For every adjacent sequence t_1, ...,t_n of timesteps of the same year it is:

            o(t,x) = mean\{i(t',x), t_1<t'<=t_n\}
yearavg     Yearly average
            For every adjacent sequence t_1, ...,t_n of timesteps of the same year it is:

            o(t,x) = avg\{i(t',x), t_1<t'<=t_n\}
yearstd     Yearly standard deviation
            Normalize by n. For every adjacent sequence t_1, ...,t_n of timesteps of the same year it is:

            o(t,x) = std\{i(t',x), t_1 < t' <= t_n\}
yearstd1    Yearly standard deviation (n-1)
            Normalize by (n-1). For every adjacent sequence t_1, ...,t_n of timesteps of the same year it is:

            o(t,x) = std1\{i(t',x), t_1 < t' <= t_n\}
yearvar     Yearly variance
            Normalize by n. For every adjacent sequence t_1, ...,t_n of timesteps of the same year it is:

            o(t,x) = var\{i(t',x), t_1 < t' <= t_n\}
yearvar1    Yearly variance (n-1)
            Normalize by (n-1). For every adjacent sequence t_1, ...,t_n of timesteps of the same year it is:

            o(t,x) = var1\{i(t',x), t_1 < t' <= t_n\}

Note

The operators yearmean and yearavg compute only arithmetical means!