An elementary R question. I would like to know if there is any possible way to take the given argument of a function and make it a character string, i.e. use the name of the variable. I am using mtcars dataset and pass mtcars$mpg into my function and like to use the name of the vector in labeling my graph.
If I am passing vectors of a data frame into my function, how do I use the name of the vector as a title in my graph.
eda1 <- function(x){
par(mfrow = c(1,2), oma = c(0,0,2,0))
boxplot(x, main = paste("Boxplot", x))
qqnorm(x)
qqline(x)
mtext(text = paste("Test Outliers for", x), outer = TRUE)
}
I am tyring to figure out what to use in the boxplot and mtext functions where I have x to get "mtcars$mpg" in my function . Suppose I give the command eda1(mtcars$mpg) and obviously the entire vector x is being passed as text.
I tried the quote function as such name <- quote(x) but that just stores "x" in name.
eda1 <- function(x){
name <- quote(x)
par(mfrow = c(1,2), oma = c(0,0,2,0))
boxplot(x, main = paste("Boxplot", name))
qqnorm(x)
qqline(x)
mtext(text = paste("Test Outliers for", name), outer = TRUE)
}
I would like to store "mtcars$mpg" in the name variable when I give the call eda1(mtcars$mpg).
Thanks
