Default plot hooks for different output formats
These hook functions define how to mark up graphics output in different output formats.
hook_plot_html(x, options) hook_plot_asciidoc(x, options) hook_plot_tex(x, options) hook_plot_md(x, options) hook_plot_rst(x, options) hook_plot_textile(x, options)
x |
Filename for the plot (a character string). |
options |
A list of the current chunk options. |
Depending on the options passed over, hook_plot_tex may return the
normal \includegraphics{} command, or \input{} (for tikz
files), or \animategraphics{} (for animations); it also takes many
other options into consideration to align plots and set figure sizes, etc.
Similarly, hook_plot_html, hook_plot_md and
hook_plot_rst return character strings which are HTML, Markdown, reST
code.
In most cases we do not need to call these hooks explicitly, and they were
designed to be used internally. Sometimes we may not be able to record R
plots using grDevices::recordPlot(), and we can make use of
these hooks to insert graphics output in the output document; see
hook_plot_custom for details.
A character string of code, with plot filenames wrapped.
# this is what happens for a chunk like this
# <<foo-bar-plot, dev='pdf', fig.align='right'>>=
hook_plot_tex("foo-bar-plot.pdf", opts_chunk$merge(list(fig.align = "right")))
# <<bar, dev='tikz'>>=
hook_plot_tex("bar.tikz", opts_chunk$merge(list(dev = "tikz")))
# <<foo, dev='pdf', fig.show='animate', interval=.1>>=
# 5 plots are generated in this chunk
hook_plot_tex("foo5.pdf", opts_chunk$merge(list(fig.show = "animate", interval = 0.1,
fig.cur = 5, fig.num = 5)))Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.