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| author | Zheng RuiFeng <ruifengz@foxmail.com> | 2017-03-21 08:45:59 -0700 |
|---|---|---|
| committer | Xiao Li <gatorsmile@gmail.com> | 2017-03-21 08:45:59 -0700 |
| commit | 63f077fbe50b4094340e9915db41d7dbdba52975 (patch) | |
| tree | 3442fa7374aa58b648de5c5bb4c76a5e3a9769df /R | |
| parent | 14865d7ff78db5cf9a3e8626204c8e7ed059c353 (diff) | |
| download | spark-63f077fbe50b4094340e9915db41d7dbdba52975.tar.gz spark-63f077fbe50b4094340e9915db41d7dbdba52975.tar.bz2 spark-63f077fbe50b4094340e9915db41d7dbdba52975.zip | |
[SPARK-20041][DOC] Update docs for NaN handling in approxQuantile
## What changes were proposed in this pull request?
Update docs for NaN handling in approxQuantile.
## How was this patch tested?
existing tests.
Author: Zheng RuiFeng <ruifengz@foxmail.com>
Closes #17369 from zhengruifeng/doc_quantiles_nan.
Diffstat (limited to 'R')
| -rw-r--r-- | R/pkg/R/stats.R | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/R/pkg/R/stats.R b/R/pkg/R/stats.R index 8d1d165052..d78a10893f 100644 --- a/R/pkg/R/stats.R +++ b/R/pkg/R/stats.R @@ -149,7 +149,8 @@ setMethod("freqItems", signature(x = "SparkDataFrame", cols = "character"), #' This method implements a variation of the Greenwald-Khanna algorithm (with some speed #' optimizations). The algorithm was first present in [[http://dx.doi.org/10.1145/375663.375670 #' Space-efficient Online Computation of Quantile Summaries]] by Greenwald and Khanna. -#' Note that rows containing any NA values will be removed before calculation. +#' Note that NA values will be ignored in numerical columns before calculation. For +#' columns only containing NA values, an empty list is returned. #' #' @param x A SparkDataFrame. #' @param cols A single column name, or a list of names for multiple columns. |