Question

I am generating a scatter plot using ggplot2, and I would like to use the variable labels as the title of x axis and y axis. How can I do it? Thanks.

x0, y0 are function variables. Assume x0 has label “labelx”, and y0 has label “labely”. The code is something like this, but how do I use label as xtitle and ytitle? Thanks.

scatplot <- function(x0, y0){
  ggplot(data = test, aes(x = x0, y = y0)) + 
  geom_point() +
  geom_smooth(se = FALSE, method = "lm",  color = "blue", size = 1) +
  scale_x_continuous(xtitle) +
  scale_y_continuous(ytitle)
}

Answer 1

The name of an object x passed to a function can be accessed with deparse(substitute(x)).

Hence, you could replace xtitle and ytitle with deparse(substitute(x0)) and deparse(substitute(y0)), respectively.