The timcumsum operator calculates the cumulative sum over all timesteps. Missing values are treated as numeric zero when summing. o(t,x) = sum{i(t',x), 0<t'<=t}
cdo_timcumsum(ifile, ofile = NULL)Operators that output one or more files return a character vector to the output files.
Operators that output an indefinite number of files return a string with the basename of the files.
Operatos that don't return filenames return a character vector with the string output.
String with the path to the input file.
String with the path to the output file.