Remove duplicates

Remove duplicates for specified columns of a data frame

Usage

remove_dup(x, cols)

Arguments

x

data frame

cols

character vector of column names from x to remove duplicates

Value

A data frame with potentially fewer rows than x after duplicated entries have been removed and repeated information has been collapsed.

Details

In Mass Spec data, there are occasionally duplicated entries that need to be removed before further analysis. Duplication is indicated by the Quan.Info and PSM.Ambiguity columns. remove_dup removes duplicates for certain columns, then collapses repeated information into a single row.

This function is intended to be used after a call to dplyr::group_by() such that the removal of duplicates is performed within each group of unique protein IDs (e.g. Reporter.Quan.Result.ID).

Author

Derek Chiu