validate_columns: Validate columns for a data.frame
In SWATH2stats: Transform and Filter SWATH Data for Statistical Packages

Description Usage Arguments Value Author(s) Examples

This function looks at the different possible column names given and chooses the one present in a data.frame. If none of the column names fit or if multiple names fit the function stops with an appropriate error message. The functions returns a list with the column names existing that can be used.

1	validate_columns(data, columns, verbose = FALSE)

`data`	data.frame to check for columns.
`columns`	List of column names to be checked if they exist.
`verbose`	Logical if message should be printed. Default = FALSE

Returns list of columns that are present

Peter Blattmann

{
 validate_columns(cars, list(Speed = c("speed")))
 
 # if out of two possible column one exists
 validate_columns(cars, list(Speed = c("speed", "velocity")))
 validate_columns(cars, list(Speed = c("speed", "velocity")), verbose = TRUE)
 
 }