forward: Forwarders for overlapping functions in plyr and dplyr
In krlmlr/pdlyr: Compatibility package to access both plyr and dplyr

Of the overlapping functions in plyr and dplyr, only three have a different interface and/or semantics: count, mutate and rename. These functions are forwarders to the corresponding functions in the plyr and dplyr packages.

pcount(df, vars = NULL, wt_var = NULL)

pmutate(.data, ...)

prename(x, replace, warn_missing = TRUE, warn_duplicated = TRUE)

dcount(x, ..., wt = NULL, sort = FALSE)

dmutate(.data, ...)

drename(.data, ...)

`df`	data frame to be processed
`vars`	variables to count unique values of
`wt_var`	optional variable to weight by - if this is non-NULL, count will sum up the value of this variable for each combination of id variables.
`.data`	the data frame to transform
`...`	named parameters giving definitions of new columns.
`x`	named object to modify
`replace`	named character vector, with new names as values, and old names as names.
`warn_missing`	print a message if any of the old names are not actually present in `x`.
`warn_duplicated`	print a message if any name appears more than once in `x` after the operation. Note: x is not altered: To save the result, you need to copy the returned data into a variable.
`wt`	(Optional) If not specified, will tally the number of rows. If specified, will perform a "weighted" tally but summing over the specified variable.
`sort`	if `TRUE` will sort output in descending order of `n`