major change in the design of R interface

R-package/R/xgb.dump.R

@@ -0,0 +1,11 @@
+# dump model
+xgb.dump <- function(booster, fname, fmap = "") {
+    if (class(booster) != "xgb.Booster") {
+        stop("xgb.dump: first argument must be type xgb.Booster")
+    }
+    if (typeof(fname) != "character"){
+        stop("xgb.dump: second argument must be type character")
+    }
+    .Call("XGBoosterDumpModel_R", booster, fname, fmap, PACKAGE="xgboost")
+    return(TRUE)
+}