The filename of figure files is the combination of options fig.path
and label. This function returns the path of figures for the current
chunk by default.
fig_path(suffix = "", options = opts_current$get(), number)A filename suffix; if it is non-empty and does not
contain a dot ., it will be treated as the filename extension (e.g.
png will be used as .png)
A list of options; by default the options of the current chunk.
The current figure number. The default is the internal chunk option
fig.cur, if this is available.
A character vector of the form fig.path-label-i.suffix.
When there are special characters (not alphanumeric or - or
_) in the path, they will be automatically replaced with _.
For example, a b/c.d- will be sanitized to a_b/c_d-. This
makes the filenames safe to LaTeX.
fig_path(".pdf", options = list(fig.path = "figure/abc-", label = "first-plot"))
#> [1] "figure/abc-first-plot-1.pdf"
fig_path(".png", list(fig.path = "foo-", label = "bar"), 1:10)
#> [1] "foo-bar-1.png" "foo-bar-2.png" "foo-bar-3.png" "foo-bar-4.png"
#> [5] "foo-bar-5.png" "foo-bar-6.png" "foo-bar-7.png" "foo-bar-8.png"
#> [9] "foo-bar-9.png" "foo-bar-10.png"