Merge remote-tracking branch 'upstream/master' into SPARK-6328

Author: djalova

.gitignore

@@ -74,3 +74,7 @@ metastore/
 warehouse/
 TempStatsStore/
 sql/hive-thriftserver/test_warehouses
+
+# For R session data
+.RHistory
+.RData

R/pkg/DESCRIPTION

@@ -34,4 +34,5 @@ Collate:
     'serialize.R'
     'sparkR.R'
     'stats.R'
+    'types.R'
     'utils.R'

R/pkg/NAMESPACE

@@ -23,9 +23,11 @@ export("setJobGroup",
 exportClasses("DataFrame")
 
 exportMethods("arrange",
+              "as.data.frame",
               "attach",
               "cache",
               "collect",
+              "coltypes",
               "columns",
               "count",
               "cov",
@@ -153,6 +155,7 @@ exportMethods("%in%",
               "isNaN",
               "isNotNull",
               "isNull",
+              "kurtosis",
               "lag",
               "last",
               "last_day",
@@ -205,12 +208,17 @@ exportMethods("%in%",
               "shiftLeft",
               "shiftRight",
               "shiftRightUnsigned",
+              "sd",
               "sign",
               "signum",
               "sin",
               "sinh",
               "size",
+              "skewness",
               "soundex",
+              "stddev",
+              "stddev_pop",
+              "stddev_samp",
               "sqrt",
               "startsWith",
               "substr",
@@ -229,6 +237,10 @@ exportMethods("%in%",
               "unhex",
               "unix_timestamp",
               "upper",
+              "var",
+              "variance",
+              "var_pop",
+              "var_samp",
               "weekofyear",
               "when",
               "year")
@@ -262,6 +274,4 @@ export("structField",
        "structType",
        "structType.jobj",
        "structType.structField",
-       "print.structType")
-
-export("as.data.frame")
+       "print.structType")