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I have created a plot with ggplot2 where the x-axis labels are not readable unless the plot is larger than default. When viewing in Rstudio I am able to resize dynamically. When saving with ggsave() I am able to specify height and width. How would I do this within the Rmarkdown file so that the output contains a plot of the desired size?
700
For a plot of different size, change simple the numbers: {r fig2, fig. height = 3, fig. width = 3, fig. align = "center"} .
R markdown cannot include ggplot figures.
In RStudio, when you open a new RMarkdown file, in the editor pane, there is a cogwheel button / menu where you can choose "Chunk Output Inline". That should put the plots into the document.
You want to make sure that you save images you create in your rmarkdown document. To do this automatically, and avoid writing things like ggsave(plot) or dev. off() , just create the plots in rmarkdown, and tell it you want to save the output. In the funky looking code at the top, the YAML, specify keep_md: yes .
You can specify height and width in the code chunks
```{r, fig.width=10,fig.height=11}
df %>% ggplot(aes(x = x, y = y)) + geom_point()
```
As a side-answer, note that you can also use metric-system units using ggplot2::unit():
library(ggplot2)
knitr::opts_chunk$set(fig.width=unit(18,"cm"), fig.height=unit(11,"cm"))
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