opts_hooks | R Documentation |
Like knit_hooks
, this object can be used to set hook functions
to manipulate chunk options.
opts_hooks
An object of class list
of length 6.
For every code chunk, if the chunk option named, say, FOO
, is not
NULL
, and a hook function with the same name has been set via
opts_hooks$set(FOO = function(options) { options })
(you can manipuate
the options
argument in the function and return it), the hook function
will be called to update the chunk options.
https://yihui.org/knitr/hooks/
# make sure the figure width is no smaller than fig.height opts_hooks$set(fig.width = function(options) { if (options$fig.width < options$fig.height) { options$fig.width = options$fig.height } options }) # remove all hooks opts_hooks$restore()
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.