r - Converting Movie Box Office to Numbers -


i have data frame in r box office number listed $121.5m , $0.014m , i'd convert them straight numbers. i'm thinking of striping $ , m , using basic multiplication. there better way this?

you either matching non-numeric elements ([^0-9.]*) , replace ''

 as.numeric(gsub("[^0-9.]*", '', "$121.5m"))  #[1] 121.5

or matching $ , m ([$m]) , replace ''

 as.numeric(gsub("[$m]", '',"$121.5m"))  #[1] 121.5

update

if have vector below

v1 <- c("$1.21m", "$0.5b", "$100k", "$1t", "$0.9p", "$1.5k")

create vector numbers , set names corresponding abbrevations

v2 <- setnames(c(1e3, 1e6, 1e9, 1e12, 1e15), c('k', 'm', 'b', 't', 'p'))

use index replace abbrevation , multiply numeric part of vector.

 as.numeric(gsub("[^0-9.]*", '',v1))* v2[sub('[^a-z]*', '', v1)]

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