| approxCountDistinct {SparkR} | R Documentation |
Aggregate function: returns the approximate number of distinct items in a group.
Approx Count Distinct
## S4 method for signature 'Column' approxCountDistinct(x, rsd = 0.05) ## S4 method for signature 'Column' approxCountDistinct(x, rsd = 0.05) approxCountDistinct(x, ...)
the approximate number of distinct items in a group.
Other agg_funcs: agg,
summarize; avg,
avg; countDistinct,
countDistinct, n_distinct,
n_distinct; count,
n, n; first,
first; kurtosis,
kurtosis; last,
last; max;
mean; min; sd,
sd, stddev,
stddev; skewness,
skewness; stddev_pop,
stddev_pop; stddev_samp,
stddev_samp; sumDistinct,
sumDistinct; sum;
var_pop, var_pop;
var_samp, var_samp;
var, var,
variance, variance
Other agg_funcs: agg,
summarize; avg,
avg; countDistinct,
countDistinct, n_distinct,
n_distinct; count,
n, n; first,
first; kurtosis,
kurtosis; last,
last; max;
mean; min; sd,
sd, stddev,
stddev; skewness,
skewness; stddev_pop,
stddev_pop; stddev_samp,
stddev_samp; sumDistinct,
sumDistinct; sum;
var_pop, var_pop;
var_samp, var_samp;
var, var,
variance, variance
## Not run: approxCountDistinct(df$c)
## Not run: approxCountDistinct(df$c, 0.02)