Recreate the ca(R) Shiny promotional meme using different plots, frame rate or output size.
car_shiny(file, p1 = NULL, p2 = NULL, fps = 10, test_frame = FALSE, mult = 1)character, output filename.
ggplot object for top half of (ca)R Shiny meme.
ggplot object for bottom half of (ca)R Shiny meme.
integer, frames per second.
logical, keep only the first frame. Ideal for saving time during testing.
numeric, factor by which to multiply the output meme dimensions. Use conservatively.
nothing is returned, but a file is saved to disk.
This function offers limited control over customization; it is intended as a canned example. For additional customization, use this function's source code in an R script where you can easily alter other values.
After writing the first layer of output to file, file is recursively read
and written again two more times in order to add all layers to the animated
gif, since the underlying meme() function does not accept vectorized inset
plots.
The Shiny logo is by RStudio.
library(ggplot2)
file <- "memery-car-shiny.gif" # outfile
set.seed(1)
p1 <- ggplot(data.frame(x = rbeta(100000, 10, 3)), aes(x)) +
geom_histogram(colour = "white", fill = "#88888880", linewidth = 1, bins = 30)
means <- (8:1)^3
sds <- 10*(8:1)
d <- data.frame(
x = rep(factor(1:8), each = 100),
y = unlist(purrr::map2(means, sds, ~rnorm(100, .x, .y) / 200))
)
p2 <- ggplot(d, aes(x, y)) +
geom_boxplot(colour = "white", fill = "#5495CF80", outlier.colour = NA) +
geom_point(shape = 21, colour = "white", fill = "#5495CF80", linewidth = 1,
position = position_jitter(0.15)) +
scale_x_discrete(expand = c(0, 0.02)) + scale_y_continuous(expand = c(0.02, 0)) +
theme_void() +
theme(plot.margin = unit(rep(5, 4), "mm"),
panel.grid.major = element_line(colour = "#FFFFFF50", linetype = 2),
panel.grid.minor = element_line(colour = "#FFFFFF50", linetype = 2))
#> Warning: Ignoring unknown parameters: `linewidth`
if (FALSE) car_shiny(file, p1, p2, test_frame = TRUE) # \dontrun{}