Closed ebenp closed 2 years ago
Thanks. I added some warning code. I think this is a good addition.
@jzadra Updated for 2 and 3 letter combinations, error checking and to allow vectors. Tests I ran included:
letnum("A")
letnum("Aa")
letnum("Aaz")
letnum(1)
letnum("1")
letnum(c("AA", 1, 23))
Added A function to get the column number from an Upper or lower case letter.
[x] checked against latest main branch
[x] documented following package documentation
[x] checked lower and upper case cases