sd {SparkR}R Documentation

sd

Description

Aggregate function: alias for stddev_samp

Usage

## S4 method for signature 'Column'
sd(x)

## S4 method for signature 'Column'
stddev(x)

sd(x, na.rm = FALSE)

stddev(x)

Arguments

x

Column to compute on.

na.rm

currently not used.

Note

sd since 1.6.0

stddev since 1.6.0

See Also

stddev_pop, stddev_samp

Other agg_funcs: agg, agg, agg, agg,GroupedData-method, agg,SparkDataFrame-method, summarize, summarize, summarize, summarize,GroupedData-method, summarize,SparkDataFrame-method; avg, avg, avg,Column-method; countDistinct, countDistinct, countDistinct,Column-method, n_distinct, n_distinct, n_distinct,Column-method; count, count, count,Column-method, count,GroupedData-method, n, n, n,Column-method; first, first, first, first,SparkDataFrame-method, first,characterOrColumn-method; kurtosis, kurtosis, kurtosis,Column-method; last, last, last,characterOrColumn-method; max, max,Column-method; mean, mean,Column-method; min, min,Column-method; skewness, skewness, skewness,Column-method; stddev_pop, stddev_pop, stddev_pop,Column-method; stddev_samp, stddev_samp, stddev_samp,Column-method; sumDistinct, sumDistinct, sumDistinct,Column-method; sum, sum,Column-method; var_pop, var_pop, var_pop,Column-method; var_samp, var_samp, var_samp,Column-method; var, var, var,Column-method, variance, variance, variance,Column-method

Examples

## Not run: 
##D stddev(df$c)
##D select(df, stddev(df$age))
##D agg(df, sd(df$age))
## End(Not run)

[Package SparkR version 2.2.0 Index]