Assert whether the required column names exist — assertColumnName • ribiosUtils

The function calls matchColumnName internally to match the column names.

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

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

Value

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

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)