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knitr 1.27
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@yihui yihui released this 16 Jan 19:29
· 635 commits to master since this release
v1.27
03efcd7

NEW FEATURES

  • The chunk option message = FALSE can now be used to suppress the message "running: command ..." when the language engine is a command such as bash, awk, perl, ruby, sas, sed, and stata, etc. (thanks, @splaisan, #1782).

BUG FIXES

  • The figure caption was placed incorrectly when there are multiple include_graphics() in a code chunk (thanks, @hadley #1771, @cderv #1776).

  • The chunk option fig.keep was buggy when taking a numeric vector. The bug was originally introduced in #1265 and discovered in the SO post https://stackoverflow.com/q/59180351/559676.

  • When the chunk option dev = 'tikz' and a plot in the code chunk is generated by ggplot2 with a legend on a continuous scale, tikzDevice will create a raster image for the legend. Now the path to the raster image in the .tex file is tweaked to include the dir name of the .tex file, so that the .tex file can be correctly compiled to PDF via LaTeX (thanks to @rstub for the debugging at https://stackoverflow.com/a/58410965/559676).

  • hook_pdfcrop() does not crop all plots when multiple graphical devices are used in a code chunk (i.e., the chunk option dev takes a vector of devices) due to a bug in the internal function all_figs() identified by @bastistician in #1766, who also proposed a fix.

MAJOR CHANGES

  • options('width') no longer affects caching. With this change, your previous cache will be invalidated if you update knitr from 1.26 to 1.27. If you prefer that changes in the R global option width invalidate cache (as in previous versions of knitr), you may associate it with a chunk option, e.g., cache.extra = getOption('width'). The reason for this change is that it is too costly to invalidate the cache when the width option changes---the effect of this option is only cosmetic and the code chunk output may not really rely on this option (thanks, @jaburgoyne, #1781).

MINOR CHANGES

  • is_html_output() returns TRUE for the Pandoc output format gfm now (thanks, @ttimbers @cderv, rstudio/rmarkdown#1756).

  • plot_crop() no longer calls the convert command in ImageMagick to trim non-PDF plots. Instead, the function magick::image_trim() is called. This means you no longer need to install ImageMagick, but should install the R package magick (thanks, @hpages, #1785).

  • When the chunk option fig.scap is used in R Markdown and the output format is LaTeX/PDF, the plot hook knitr::hook_plot_tex() will be used to create the appropriate figure environment. In previous versions, fig.scap is silently ignored (thanks, @billdenney, #1793).

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