witch_time_mapping reads a time csv file and returns the
time mapping as defined in the file. The function scans the csv file.
Value
A data.table with one row per (t, year) pair and the columns
t, year (numeric), refyear, pred,
tperiod, begyear and endyear.
Examples
# Read the t30 time mapping shipped with the package
witch_time_mapping(
system.file("extdata", "t30.csv", package = "witchtools")
)
#> t year refyear pred tperiod begyear endyear
#> <char> <num> <char> <char> <char> <char> <char>
#> 1: 1 2003 2005 1 2003 2007
#> 2: 1 2004 2005 1 2003 2007
#> 3: 1 2005 2005 1 2003 2007
#> 4: 1 2006 2005 1 2003 2007
#> 5: 1 2007 2005 1 2003 2007
#> ---
#> 146: 30 2148 2150 29 30 2148 2152
#> 147: 30 2149 2150 29 30 2148 2152
#> 148: 30 2150 2150 29 30 2148 2152
#> 149: 30 2151 2150 29 30 2148 2152
#> 150: 30 2152 2150 29 30 2148 2152