Fix some roxygen bugs

Author: shivaram

R/pkg/R/DataFrame.R

@@ -480,7 +480,7 @@ setMethod("distinct",
 #' @param withReplacement Sampling with replacement or not
 #' @param fraction The (rough) sample target fraction
 #' @rdname sampleDF
-#' @alias sample_frac
+#' @aliases sample_frac
 #' @export
 #' @examples
 #'\dontrun{
@@ -503,7 +503,7 @@ setMethod("sampleDF",
           })
 
 #' @rdname sampleDF
-#' @alias sampleDF
+#' @aliases sampleDF
 setMethod("sample_frac",
           signature(x = "DataFrame", withReplacement = "logical",
                     fraction = "numeric"),
@@ -692,7 +692,7 @@ setMethod("toRDD",
 #' @param x a DataFrame
 #' @return a GroupedData
 #' @seealso GroupedData
-#' @alias group_by
+#' @aliases group_by
 #' @rdname groupBy
 #' @export
 #' @examples
@@ -730,7 +730,7 @@ setMethod("group_by",
 #'
 #' @param x a DataFrame
 #' @rdname DataFrame
-#' @alias summarize
+#' @aliases summarize
 #' @export
 setMethod("agg",
           signature(x = "DataFrame"),
@@ -739,7 +739,7 @@ setMethod("agg",
           })
 
 #' @rdname DataFrame
-#' @alias agg
+#' @aliases agg
 setMethod("summarize",
           signature(x = "DataFrame"),
           function(x, ...) {
@@ -982,7 +982,7 @@ setMethod("withColumn",
 #' @param col a named argument of the form name = col
 #' @return A new DataFrame with the new columns added.
 #' @rdname withColumn
-#' @alias withColumn
+#' @aliases withColumn
 #' @export
 #' @examples
 #'\dontrun{
@@ -1049,7 +1049,7 @@ setMethod("withColumnRenamed",
 #' @param newCol A named pair of the form new_column_name = existing_column
 #' @return A DataFrame with the column name changed.
 #' @rdname withColumnRenamed
-#' @alias withColumnRenamed
+#' @aliases withColumnRenamed
 #' @export
 #' @examples
 #'\dontrun{

R/pkg/R/column.R

@@ -130,9 +130,9 @@ createMethods()
 
 #' alias
 #'
-#' @rdname column
-#'
 #' Set a new name for a column
+
+#' @rdname column
 setMethod("alias",
           signature(object = "Column"),
           function(object, data) {
@@ -143,6 +143,8 @@ setMethod("alias",
             }
           })
 
+#' substr
+#'
 #' An expression that returns a substring.
 #'
 #' @rdname column
@@ -181,8 +183,7 @@ setMethod("cast",
 #' Approx Count Distinct
 #'
 #' @rdname column
-#'
-#' Returns the approximate number of distinct items in a group.
+#' @return the approximate number of distinct items in a group.
 setMethod("approxCountDistinct",
           signature(x = "Column"),
           function(x, rsd = 0.95) {
@@ -193,8 +194,7 @@ setMethod("approxCountDistinct",
 #' Count Distinct
 #'
 #' @rdname column
-#'
-#' returns the number of distinct items in a group.
+#' @return the number of distinct items in a group.
 setMethod("countDistinct",
           signature(x = "Column"),
           function(x, ...) {
@@ -207,15 +207,15 @@ setMethod("countDistinct",
           })
 
 #' @rdname column
-#' @alias countDistinct
+#' @aliases countDistinct
 setMethod("n_distinct",
           signature(x = "Column"),
           function(x, ...) {
             countDistinct(x, ...)
           })
 
 #' @rdname column
-#' @alias count
+#' @aliases count
 setMethod("n",
           signature(x = "Column"),
           function(x) {

R/pkg/R/generics.R

@@ -436,7 +436,7 @@ setGeneric("isLocal", function(x) { standardGeneric("isLocal") })
 #' @export
 setGeneric("limit", function(x, num) {standardGeneric("limit") })
 
-#' @rdname mutate
+#' @rdname withColumn
 #' @export
 setGeneric("mutate", function(x, ...) {standardGeneric("mutate") })
 
@@ -500,7 +500,7 @@ setGeneric("selectExpr", function(x, expr, ...) { standardGeneric("selectExpr")
 #' @export
 setGeneric("showDF", function(x,...) { standardGeneric("showDF") })
 
-#' @rdname summarize
+#' @rdname agg
 #' @export
 setGeneric("summarize", function(x,...) { standardGeneric("summarize") })
 

R/pkg/R/group.R

@@ -112,7 +112,7 @@ setMethod("agg",
           })
 
 #' @rdname agg
-#' @alias agg
+#' @aliases agg
 setMethod("summarize",
           signature(x = "GroupedData"),
           function(x, ...) {