small changes in doc

R-package/man/getinfo.Rd

@@ -11,7 +11,7 @@ getinfo(object, ...)
 \S4method{getinfo}{xgb.DMatrix}(object, name)
 }
 \arguments{
-\item{object}{Object of class "xgb.DMatrix"}
+\item{object}{Object of class \code{xgb.DMatrix}}
 
 \item{...}{other parameters}
 
@@ -20,6 +20,16 @@ getinfo(object, ...)
 \description{
 Get information of an xgb.DMatrix object
 }
+\details{
+The information can be one of the following:
+
+\itemize{
+    \item \code{label}
+    \item \code{weight}
+    \item \code{base_margin}
+    \item \code{nrow}
+}
+}
 \examples{
 data(agaricus.train, package='xgboost')
 train <- agaricus.train

R-package/man/setinfo.Rd

@@ -22,6 +22,16 @@ setinfo(object, ...)
 \description{
 Set information of an xgb.DMatrix object
 }
+\details{
+It can be one of the following:
+
+\itemize{
+    \item \code{label}
+    \item \code{weight}
+    \item \code{base_margin}
+    \item \code{group}
+}
+}
 \examples{
 data(agaricus.train, package='xgboost')
 train <- agaricus.train

R-package/man/xgboost.Rd

@@ -59,7 +59,7 @@ data(agaricus.test, package='xgboost')
 train <- agaricus.train
 test <- agaricus.test
 bst <- xgboost(data = train$data, label = train$label, max.depth = 2,
-               eta = 1, nthread = 2, nround = 2,objective = "binary:logistic")
+               eta = 1, nthread = 2, nround = 2, objective = "binary:logistic")
 pred <- predict(bst, test$data)
 }