R: ggplot2, how to add a number of layers to a plot at once to reduce code
- by John
library(ggplot2)
This code produces a nice looking plot:
qplot(cty, hwy, data = mpg, colour = displ) +
scale_y_log2() +
labs(x="x axis") +
labs(y="y axis") +
opts(title = "my title")
But I want to setup variables to try and to reduce code repetition:
log_scale <- scale_y_log2()
xscale <- labs(x="x axis")
yscale <- labs(y="y axis")
title <- opts(title = "my title")
my_scales <- c(log_scale, xscale, yscale, title)
# make a variable to hold the scale info changes above
So that I can do this and add a bunch of things at the same time:
qplot(cty, hwy, data = mpg, colour = displ) + my_scales
# add these to your plot.
but I get this error:
Error in object$class : $ operator is invalid for atomic vectors
I realize that the things going into my_scales need to be layers / different types of objects, but I don't see what they should be.
