Time range percentile values — cdo

This operator computes percentile values over a selected number of timesteps in infile1. The algorithm uses histograms with minimum and maximum bounds given in infile2 and infile3, respectively. The default number of histogram bins is 101. The default can be overridden by setting the environment variable CDO_PCTL_NBINS to a different value. The files infile2 and infile3 should be the result of corresponding timselmin and timselmax operations, respectively. The time of outfile is determined by the time in the middle of all contributing timesteps of infile1. This can be change with the CDO option –timestat_date <first|middle|last>. For every adjacent sequence t1, ...., tn of timesteps of the same selected time range it is: o(t,x) = pth percentile {i(t',x), t1 < t' <= tn}

Usage

cdo_timselpctl(
  ifile1,
  ifile2,
  ifile3,
  p = NULL,
  nsets = NULL,
  noffset = NULL,
  nskip = NULL,
  ofile = NULL
)

Arguments

ifile1, ifile2, ifile3: Strings with the path to the input files.
p: FLOAT - Percentile number in {0, ..., 100}
nsets: INTEGER - Number of input timesteps for each output timestep
noffset: INTEGER - Number of input timesteps skipped before the first timestep range (optional)
nskip: INTEGER - Number of input timesteps skipped between timestep ranges (optional)
ofile: String with the path to the output file.