duplicate: Determine Duplicate Rows
In evanwang1990/process: some useful functions in data processing

An improved version of 'data.table::duplicated'. It returns all the rows which have duplicate rows, which is the difference from 'duplicated'

1	duplicate(data, by)

`data`	data.frame or data.table
`by`	character vector, ‘by' variables’ names

1 2	data(iris) duplicate(iris, c('Sepal.Width', 'Species'))

evanwang1990/process documentation built on May 16, 2019, 9:38 a.m.

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