cellranger (version 1.0.0)

letter_to_num: Convert column IDs from letter representation to integer

Description

Convert column IDs from letter representation to integer

Usage

letter_to_num(x)

Arguments

x

character vector of letter-style column IDs (case insensitive)

Value

vector of positive integers, giving associated column numbers

Examples

letter_to_num('Z')
letter_to_num(c('AA', 'ZZ', 'ABD', 'ZZZ'))
letter_to_num(c(NA, ''))