19 Programming with ggplot2
19.1 Exercises
1.
pink_hist <- geom_histogram(
color = "pink",
bins = 100
)2.
fill_blues <- scale_fill_distiller(
palette = "Blues"
)3.
?theme_gray()- Its arguments include
base_size,base_family,base_line_size, andbase_rect_size - According to the help file,
theme_gray()is the signature ggplot2 theme with a grey background and white gridlines and is designed to put the data forward yet make comparisons easy.
4.
scale_colour_wesanderson <- function(palette = "BottleRocket1", ...) {
scale_color_manual(values = wesanderson::wes_palette(palette), ...)
}
# Working example
ggplot(mtcars, aes(wt, disp, color = factor(gear))) +
geom_point() +
scale_colour_wesanderson()
19.2 Exercises
1.
remove_labels <- theme(legend.position = "none",
axis.title.x = element_blank(),
axis.title.y = element_blank())
# Working Example
ggplot(mtcars, aes(wt, disp, color = factor(gear))) +
geom_point() +
remove_labels
2. Not sure