I found it, it was SO simple: lowessline <- lowess(x,y) write.csv(lowessline, "loess.csv") -- View this message in context: http://r.789695.n4.nabble.com/how-to-sample-lowess-loess-into-matrix-tp3053458p3053601.html Sent from the R help mailing list archive at Nabble.com.