replyr_check_ranks: confirm data has good ranked groups
In replyr: Patches to Use 'dplyr' on Remote Data Sources

Description Usage Arguments Value Examples

confirm data has good ranked groups

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replyr_check_ranks(x, GroupColumnName, ValueColumnName, RankColumnName,
  ..., decreasing = FALSE,
  tempNameGenerator = mk_tmp_name_source("replyr_check_ranks"))

`x`	data item to work with
`GroupColumnName`	column to group by
`ValueColumnName`	column determining order
`RankColumnName`	column having proposed rank (function of order)
`...`	force later arguments to bind by name
`decreasing`	if true make order decreasing instead of increasing.
`tempNameGenerator`	temp name generator produced by wrapr::mk_tmp_name_source, used to record dplyr::compute() effects.

summary of quality of ranking.

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d <- data.frame(Sepal_Length=c(5.8,5.7),Sepal_Width=c(4.0,4.4),
                Species='setosa',rank=c(1,2))
replyr_check_ranks(d,'Species','Sepal_Length','rank',  decreasing=TRUE)