last

Description

Aggregate function: returns the last value in a group.

Usage

## S4 method for signature 'characterOrColumn'
last(x, na.rm = FALSE)

last(x, ...)

Arguments

Details

The function by default returns the last values it sees. It will return the last non-missing value it sees when na.rm is set to true. If all values are missing, then NA is returned.

Note

last since 1.4.0

See Also

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,SparkDataFrame-method, n, n, n,Column-method, nrow, nrow,SparkDataFrame-method; first, first, first,SparkDataFrame-method, first,characterOrColumn-method; kurtosis, kurtosis, kurtosis,Column-method; max, max,Column-method; mean, mean,Column-method; min, min,Column-method; sd, sd, sd,Column-method, stddev, stddev, stddev,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 last(df$c)
##D last(df$c, TRUE)
## End(Not run)