I am having problem making ggplot2, tikzDevice, and knitr working together.
I used a very simple example:
---------------------------example.Rnw-----------------------------
\documentclass[preview]{standalone}
\begin{document}
\begin{figure}
<<fig1,eval=TRUE,echo=FALSE,dev='tikz'>>=
library(ggplot2)
qplot(displ, hwy, data = mpg, colour = factor(cyl))
@
\end{figure}
\end{document}
---------------------------------------------------------------------------------
I got "... ! ==> Fatal error occurred, no output PDF file produced!
label: fig1 (with options)
List of 3
$ eval: logi TRUE
$ echo: logi FALSE
$ dev : chr "tikz"
Error in process_file(text, output) :
Quitting from lines 6-8: (test_Rnw.Rnw) Error in
getMetricsFromLatex(TeXMetrics) :
TeX was unable to calculate metrics for the following string
or character:
hwy
Common reasons for failure include:
* The string contains a character which is special to LaTeX unless
escaped properly, such as % or $.
* The string makes use of LaTeX commands provided by a package and
the tikzDevice was not told to load the package.
The contents of the LaTeX log of the aborted run have been printed above,
it may contain additional details as to why the metric calculation failed.
Calls: knit -> process_file
Execution halted"
Best,
Shige
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