validate_columns {SWATH2stats} | R Documentation

## Validate columns for a data.frame

### Description

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.

### Usage

    validate_columns(data, columns, verbose = FALSE)

### Arguments

`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

### Value

Returns list of columns that are present

### Author(s)

Peter Blattmann

### Examples

    {
     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)

     }

[Package SWATH2stats version 1.20.1 Index]