fix doc with redirection to inst/examples

R-package/R/xgb.dump.R

@@ -5,7 +5,7 @@
 #' @param model the model object.
 #' @param fname the name of the binary file.
 #' @param fmap feature map file representing the type of feature, to make it
-#'        look nice, run demo/demo.R for result and demo/featmap.txt for example
+#'        look nice, run inst/examples/demo.R for result and inst/examples/featmap.txt for example
 #'        Format: https://github.com/tqchen/xgboost/wiki/Binary-Classification#dump-model
 #'
 #' @examples

R-package/R/xgb.train.R

@@ -15,7 +15,7 @@
 #' }
 #'
 #'   See \url{https://github.com/tqchen/xgboost/wiki/Parameters} for 
-#'   further details. See also demo/demo.R for walkthrough example in R.
+#'   further details. See also inst/examples/demo.R for walkthrough example in R.
 #' @param dtrain takes an \code{xgb.DMatrix} as the input.
 #' @param nrounds the max number of iterations
 #' @param watchlist what information should be printed when \code{verbose=1} or

R-package/R/xgboost.R

@@ -19,7 +19,7 @@
 #' }
 #'
 #'   See \url{https://github.com/tqchen/xgboost/wiki/Parameters} for 
-#'   further details. See also demo/demo.R for walkthrough example in R.
+#'   further details. See also inst/examples/demo.R for walkthrough example in R.
 #' @param nrounds the max number of iterations
 #' @param verbose If 0, xgboost will stay silent. If 1, xgboost will print 
 #'   information of performance. If 2, xgboost will print information of both