Considering that the content of a certain variable is "001" class character .
I need to convert such a character to numeric. If I do as.numeric() , it returns me 1 .
I want you to return me exactly 001, is it possible?
Thank you.
The problem is in == and not in class. == works only for one value. To compare with more than one value, it must be %in% . In your case:
desp2[desp2$codigo_novo %in% c('1049', '1001'),]
In the same way subset:
subset(desp2, codigo_novo %in% c('1049', '1001'))
Using == , it would take two comparisons:
desp2$codigo_novo == '1049' | desp2$codigo_novo == '1001'