Numbers

count()

{plyr}

count unique values of variables

format()

{base}

format object for pretty printing

n()

{dplyr}

return current group size

round()

{base}

round values to specified number of digits

count()

{dplyr}

count unique values of variables

n_distinct()

{dplyr}

count unique combinations

cut()

{base}

divide range of vector into intervals

The end!