Up till now there's been no support for sending string-valued series to an R function (with R_functions on, that is). All you'd get in R was the numeric codes. New in git: string values are passed to R; and also you can return an array of strings from R. Trivial example: <hansl> set R_functions on foreign language=R strvals <- function(s) { cat("Hello from R\n") print(s) u <- unique(s) print(u) } end foreign nulldata 8 series s = {1,2,3,4,1,2,3,4}' stringify(s, defarray("a", "b", "c", "d")) print s eval R.strvals(s) </hansl> Allin _______________________________________________ Gretl-devel mailing list -- gretl-devel(a)gretlml.univpm.it To unsubscribe send an email to gretl-devel-leave(a)gretlml.univpm.it Website: https://gretlml.univpm.it/postorius/lists/gretl-devel.gretlml.univpm.it/