I have a large number of figures which I would like to present in a single column in a document created with knitr. The number of figures can vary, so I created a function to combine all figures using patchwork::wrap_plots (cowplot::plot_grid is an alternative, but has the same issues described below). MWE:
library(patchwork)
library(tidyverse)
plots <- lapply(1:10, function(x) data.frame(A = rnorm(1:100, 0, 1), B = rnorm(1:100, 0, 1)) %>%
ggplot(., aes(x = A, y = B)) +
geom_point() +
coord_equal())
wrap_plots(plots, ncol = 1)
By default, this creates tiny plots. (Leaving out coord_equal leads to plots of the same height, but with full page width):
Using knitr's chunk option fig.height (but not fig.width) it is possible to scale up the plots. However, this leads to very large margins above and below the entire plot.
I have found a number of solution for controlling the size of patchwork or cowplot plots (e.g., using cowplot::save_plot). However, none of these seem applicable to documents created with knitr.
Preferably, I would like figures to automatically have the same width as text in the knitr output, without excessive margins.