ribiosUtils (version 1.7.7)

assertColumnName: Assert whether the required column names exist

Description

The function calls matchColumnName internally to match the column names.

Usage

assertColumnName(data.frame.cols, reqCols, ignore.case = FALSE)

Value

If all required column names are present, their indices are returned *invisibly*. Otherwise an error message is printed.

Arguments

data.frame.cols

column names of a data.frame. One can also provide a data.frame, which may however cause worse performance since the data.frame is copied

reqCols

required columns

ignore.case

logical, whether the case is considered

Examples

myTestDf <- data.frame(HBV=1:3, VFB=0:2, BVB=4:6, FCB=2:4)
myFavTeams <- c("HBV", "BVB")
assertColumnName(myTestDf, myFavTeams)
myFavTeamsCase <- c("hbv", "bVb")
assertColumnName(myTestDf, myFavTeamsCase, ignore.case=TRUE)