I need to make a histogram. I have the following 3 columns:
-
L courses offered
-
M offered vacancies
-
N filled vacancies
Jobs offered and filled in ok, the problem is that I can not put the data in column L on the X axis. I got to use the command, but I get an error message:
hist(ESCOLA$DESCSERIE, breaks=seq(from=1, to=255), main="CURSOS",
xlab="DESCSERIE", ylab="MATRIC")
Error in hist.default(ESCOLA$DESCSERIE, breaks = seq(from = 1, to = 255), :
'x' deve ser numérico