Having a data frame, how do I go about replacing all particular values along all rows and columns. Say for example I want to replace all empty records with NA
's (without typing the positions):
df <- data.frame(list(A=c("", "xyz", "jkl"), B=c(12, "", 100)))
A B
1 12
2 xyz
3 jkl 100
Expected result:
A B
1 NA 12
2 xyz NA
3 jkl 100
Like this:
> df[df==""]<-NA
> df
A B
1 <NA> 12
2 xyz <NA>
3 jkl 100