I'm trying to reshape wide DB to long. I want to get all column names and make them to the year column. How can I get all column names from 1961 to 2016
nsoil <- melt(soil, id.vars = c("CountryName", "Country.Code"),
measure.vars = c(colnames("1961"......."2016")),
variable.name = "years"
value.name = "%AgroLands"
)
nsoil
Thanks a lot!