Let infile be a time series of the daily minimum temperature TN, then the largest number of consecutive days where TN < 0 °C is counted. Note that TN have to be given in units of Kelvin. A further output variable is the number of frost periods of more than N days. The date information of a timestep in outfile is the date of the last contributing timestep in infile.
cdo_eca_cfd(ifile, N = NULL, 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.
INTEGER - Minimum number of days exceeded (default: N = 5)
String with the path to the output file.