[R] Problem with figures

[Duncan Murdoch]

On 12-12-02 5:42 PM, Shige Song wrote:
> I am having problem making ggplot2, tikzDevice, and knitr working together.
> I used a very simple example:

I don't use knitr so I can't really help, but you didn't tell us how you 
passed this file to knitr, so maybe nobody can.  However, if you were 
using Sweave, you would need to mention that the code chunk produces a 
figure (using "fig=TRUE" in the <<>>= header).

Duncan Murdoch

> ---------------------------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
>
> 	[[alternative HTML version deleted]]
>
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