validate_columns {SWATH2stats} | R Documentation |
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.
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) }