opts_chunk
Default and current chunk options
Options for R code chunks. When running R code, the object opts_chunk
(default options) is not modified by chunk headers (local chunk options are
merged with default options), whereas opts_current
(current options)
changes with different chunk headers and it always reflects the options for
the current chunk.
- Keywords
- datasets
Usage
opts_chunkopts_current
Details
Normally we set up the global options once in the first code chunk in a
document using opts_chunk$set()
, so that all latter chunks will
use these options. Note the global options set in one chunk will not affect
the options in this chunk itself, and that is why we often need to set global
options in a separate chunk.
See str(knitr::opts_chunk$get())
for a list of default chunk options.
Note
opts_current
is read-only in the sense that it does nothing if
you call opts_current$set()
; you can only query the options via
opts_current$get()
.
Format
An object of class list
of length 5.
References
Usage: https://yihui.name/knitr/objects/
A list of available options: https://yihui.name/knitr/options/#chunk_options
Examples
# NOT RUN {
opts_chunk$get("prompt")
opts_chunk$get("fig.keep")
# }