I would like to transform a string into a number. This is my code:
test <- starwars home <- test$homeworld home <- as.numeric(home) but I have this error:
Error: 'list' object cannot be coerced to type 'double' My goal is to assign a number to every homeworld. Obviously the lines with the same homeworld will have the same number assigned.
How can I fix my code?
The way I read it, you want to transform home to contain numbers instead of text, with similar numbers representing similar homeworlds.
As r correctly states, you cannot turn a list into a single numeric (double) value. Instead, you first have to convert the list into a factor.
To do this in R, you run:
data(starwars, package = "dplyr") df <- starwars home <- df$homeworld home_numeric <- as.numeric(as.factor(home)) Hope this helps!
