Thanks Richard. I did not realise such a function existed.
Assuming I am using it correctly I do get an error though not where I was
expecting it. Anyway the code below returns an error
library(tools)
showNonASCII("ggplot(df, aes(x = x)) + geom_histogram(aes(y = ..density..)),
binwidth = 1, colour = "black", fill = "white")")
Results
Error: unexpected symbol in:
"showNonASCII("ggplot(df, aes(x = x)) + geom_histogram(aes(y = ..density..)),
binwidth = 1, colour = "black"
John Kane
Kingston ON Canada
> -----Original Message-----
> From: r...@temple.edu
> Sent: Mon, 23 Dec 2013 11:44:42 -0500
> To: jrkrid...@inbox.com
> Subject: Re: [R] Knitr, ggplot and consistent fonts
>
> If the problem seems to be non-ASCII characters, then the first
> investigation
> step is to use the R functions
>
> ?tools::showNonASCII
> ?tools::showNonASCIIfile
>
> On Mon, Dec 23, 2013 at 11:37 AM, John Kane <jrkrid...@inbox.com> wrote:
>> Same result here with the same error message mentioned in my first post.
>> I tried it in Texmaker which is my usual Latex editor, not that I do
>> much in Latex, and then tried it in RStudio and it is still choking.
>>
>> Interestingly EMACS will process it and produce a pdf but it simply
>> produces. It also provides this warning: : Latex Warning; Reference
>> 'fig:plot-figheight' undefined on page 2 on input line 14.
>>
>> It seems to repeat the same message for each of the other figures.
>>
>> John Kane
>> Kingston ON Canada
>>
>>
>>> -----Original Message-----
>>> From: dulca...@bigpond.com
>>> Sent: Mon, 23 Dec 2013 22:28:33 +1000
>>> To: daniel.haugstv...@gmail.com, r-help@r-project.org
>>> Subject: Re: [R] Knitr, ggplot and consistent fonts
>>>
>>> Hi Dan
>>>
>>>
>>>
>>> I think you still have problems with embedded characters or some
>>> problems
>>> in
>>> char code page conversion or the like.
>>>
>>>
>>>
>>> Not knowing knitr but Sweave I cobbled the figures manually and ran the
>>> sweave file to produce the latex file.
>>>
>>> Latex was consistently stopping at the \caption and \ref functions
>>>
>>> I tried to see what was happening I added hyperref & when I copied the
>>> text
>>> to hyperref latex bailed up
>>>
>>>
>>>
>>> I tried a minimal latex file without problems
>>>
>>>
>>>
>>> I put the \title etc in the preamble. Some compilers need this
>>>
>>>
>>>
>>> Duncan
>>>
>>>
>>>
>>> From: Daniel Haugstvedt [mailto:daniel.haugstv...@gmail.com]
>>> Sent: Monday, 23 December 2013 20:10
>>> To: Duncan Mackay
>>> Cc: John Kane; R
>>> Subject: Re: [R] Knitr, ggplot and consistent fonts
>>>
>>>
>>>
>>> I am really sorry for posting a non-working example. It is running when
>>> I
>>> cut the code from my previous mail into a clean session in RStudio
>>> (OSX).
>>> However, I suspect that you are right. I did cut and paste some code
>>> from
>>> a
>>> forum yesterday which had characters that had to be replaced. I gave
>>> emacs a
>>> try, but could not find the problem there either.
>>>
>>>
>>>
>>> The code below was pasted though textEdit and converted to plain text.
>>> I
>>> hope this takes care of any embedded characters.
>>>
>>>
>>>
>>> \documentclass{article}
>>>
>>> \begin{document}
>>>
>>>
>>>
>>> <<setup, include=FALSE, cache=FALSE>>=
>>>
>>> library(knitr)
>>>
>>> library(ggplot2)
>>>
>>> @
>>>
>>>
>>>
>>> \title{Knitr and ggplot2}
>>>
>>> \author{Daniel Haugstvedt}
>>>
>>>
>>>
>>> \maketitle
>>>
>>>
>>>
>>> There are four plots in this article. Figure \ref{fig:plot-figHeight}
>>> uses
>>>
>>> the argument fig.height=2.5 while Figures \ref{fig:plot-figWidth}
>>>
>>> used both fig.height=2.5 and fig.width=3. The later option makes the
>>> font
>>>
>>> too big.
>>>
>>>
>>>
>>> An alternative approach is used in Figures
>>> \ref{fig:plot-figOutWidthBig}
>>> and
>>>
>>> \ref{fig:plot-figOutWidthSmall}. There the argument out.width is set
>>> to
>>>
>>> 12 and 8 cm respectively. This stops the problem of excessively large
>>> fonts
>>>
>>> for figures with smaller width, but there is still no consistency
>>>
>>> across plots in terms o font size.
>>>
>>>
>>>
>>> <<plot-figHeight, echo=FALSE, fig.height=2.5, fig.cap="Density plot
>>> with
>>> no
>>> fig.width argument", results='hide', fig.pos='ht'>>=
>>>
>>> df = data.frame(x = rnorm(100), y = 1:100)
>>>
>>> ggplot(df, aes(x = x)) +
>>>
>>> geom_histogram(aes(y = ..density..),
>>>
>>> binwidth = 1, colour = "black", fill = "white") +
>>>
>>> xlab("Improvement, %") +
>>>
>>> ylab("Density") +
>>>
>>> theme_classic()
>>>
>>> @
>>>
>>>
>>>
>>> <<plot-figWidth, echo=FALSE, fig.height=2.5, fig.width = 3,
>>> fig.cap="Density
>>> plot with fig.width=3", fig.pos='ht'>>=
>>>
>>> ggplot(df, aes(x = x)) +
>>>
>>> geom_histogram(aes(y = ..density..),
>>>
>>> binwidth = 1, colour = "black", fill = "white") +
>>>
>>> xlab("Improvement, %") +
>>>
>>> ylab("Density") +
>>>
>>> theme_classic()
>>>
>>> @
>>>
>>>
>>>
>>> <<plot-figOutWidthBig, echo=FALSE, fig.height=2.5, out.width = "12cm",
>>> fig.cap="Density plot with out.width=12cm", fig.pos='ht'>>=
>>>
>>> ggplot(df, aes(x = x)) +
>>>
>>> geom_histogram(aes(y = ..density..),
>>>
>>> binwidth = 1, colour = "black", fill = "white") +
>>>
>>> xlab("Improvement, %") +
>>>
>>> ylab("Density") +
>>>
>>> theme_classic()
>>>
>>> @
>>>
>>>
>>>
>>> <<plot-figOutWidthSmall, echo=FALSE, fig.height=2.5, out.width = "8cm",
>>> fig.cap="Density plot with out.width=8cm", fig.pos='ht'>>=
>>>
>>> ggplot(df, aes(x = x)) +
>>>
>>> geom_histogram(aes(y = ..density..),
>>>
>>> binwidth = 1, colour = "black", fill = "white") +
>>>
>>> xlab("Improvement, %") +
>>>
>>> ylab("Density") +
>>>
>>> theme_classic()
>>>
>>> @
>>>
>>>
>>>
>>> \end{document}
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Sun, Dec 22, 2013 at 11:59 PM, Duncan Mackay <dulca...@bigpond.com>
>>> wrote:
>>>
>>> Hi Daniel
>>> I tried it in Sweave after modifying it for Sweave and a similar thing
>>> for
>>> Latex but R crashed.
>>>
>>> I think there is an embedded character/s before the first chunk and in
>>> the
>>> first chunk.
>>>
>>> Duncan
>>>
>>> Duncan Mackay
>>> Department of Agronomy and Soil Science
>>> University of New England
>>> Armidale NSW 2351
>>> Email: home: mac...@northnet.com.au
>>>
>>>
>>> -----Original Message-----
>>> From: r-help-boun...@r-project.org
>>> [mailto:r-help-boun...@r-project.org]
>>> On
>>> Behalf Of John Kane
>>> Sent: Monday, 23 December 2013 04:19
>>> To: Daniel Haugstvedt; r-help@r-project.org
>>> Subject: Re: [R] Knitr, ggplot and consistent fonts
>>>
>>> Hi Daniel,
>>>
>>> For some reason I cannot get your example to work. The problem is in
>>> the
>>> code chunk but I have no idea what is happening. The code is running
>>> perfectly in R, itself but LaTeX seems to be choking when it hits the
>>> first
>>> ggplot statement, that is the one in <<plot-figHeight>>=
>>>
>>> The message I am getting is: "Missing $ inserted <inserted text> $
>>> ggplot(df, aes(x=x)) = geom_" and my knowledge of LateX is not enough
>>> to
>>> figure out the problem.
>>>
>>> I tried stripping out most of the LaTeX specific verbiage in the code
>>> chunk
>>> and running the code in LyX which I use rather than plain vanilla LaTeX
>>> and
>>> I still cannot get it to work. It is almost as if there is some hidden
>>> character in the in that piece of code since I can duplicate the code
>>> myself
>>> and I even pasted in most of the geom_histogram code into my code chunk
>>> and
>>> it runs.
>>>
>>> John Kane
>>> Kingston ON Canada
>>>
>>>
>>>> -----Original Message-----
>>>> From: daniel.haugstv...@gmail.com
>>>> Sent: Sun, 22 Dec 2013 12:42:50 +0100
>>>> To: r-help@r-project.org
>>>> Subject: [R] Knitr, ggplot and consistent fonts
>>>>
>>>> Dear R-help
>>>>
>>>> I am using Knitr and ggplot to draft an article and have now started
>>>> to improve on the layout and graphics. So far I have not been able to
>>>> maintain the same font size for labels in all my figures.
>>>>
>>>> My goal is to be able to change the width of the figures while
>>>> maintaining the same font. This works for the height parameter
>>>> (example not included).
>>>>
>>>> In the true document I also use tikz, but the problem can be
>>>> reproduced without it.
>>>>
>>>> I know the question is very specific, but my understanding is that
>>>> this combination of packages is common. (They are really great. Keep
>>>> up the good work.) There has to be others facing the same problem and
>>>> someone must have found a nice solution.
>>>>
>>>> Additional attempts from my side which failed are not included in the
>>>> example. I have tested the Google results i could find without any
>>>> luck.
>>>>
>>>> Cheers
>>>> Daniel
>>>>
>>>> PS. I know the example plots could have been smaller, but they just
>>>> became too ugly for me
>>>>
>>>>
>>>> \documentclass{article}
>>>> \begin{document}
>>>>
>>>> <<setup, include=FALSE, cache=FALSE>>=
>>>> library(knitr)
>>>> library(ggplot2)
>>>> @
>>>>
>>>> \title{Knitr and ggplot2}
>>>> \author{Daniel Haugstvedt}
>>>>
>>>> \maketitle
>>>>
>>>> There are four plots in this article. Figure \ref{fig:plot-figHeight}
>>>> uses the argument fig.height=2.5 while Figures \ref{fig:plot-figWidth}
>>>> used both fig.height=2.5 and fig.width=3. The later option makes the
>>>> font too big.
>>>>
>>>> An alternative approach is used in Figures
>>>> \ref{fig:plot-figOutWidthBig} and \ref{fig:plot-figOutWidthSmall}.
>>>> There the argument out.width is set to
>>>> 12 and 8 cm respectively. This stops the problem of excessively large
>>>> fonts for figures with smaller width, but there is still no
>>>> consistency across plots in terms of font size.
>>>>
>>>> <<plot-figHeight, echo=FALSE, fig.height=2.5, fig.cap="Density plot
>>>> with no fig.width argument", fig.pos='ht'>>= df = data.frame(x =
>>>> rnorm(100), y = 1:100) ggplot(df, aes(x = x)) +
>>>> geom_histogram(aes(y = ..density..),
>>>> binwidth = 1, colour = "black", fill = "white") +
>>>> xlab("Improvement, %") +
>>>> ylab("Density") +
>>>> theme_classic()
>>>> @
>>>>
>>>> <<plot-figWidth, echo=FALSE, fig.height=2.5, fig.width = 3,
>>>> fig.cap="Density plot with fig.width=3", fig.pos='ht'>>= ggplot(df,
>>>> aes(x = x)) +
>>>> geom_histogram(aes(y = ..density..),
>>>> binwidth = 1, colour = "black", fill = "white") +
>>>> xlab("Improvement, %") +
>>>> ylab("Density") +
>>>> theme_classic()
>>>> @
>>>>
>>>> <<plot-figOutWidthBig, echo=FALSE, fig.height=2.5, out.width = "12cm",
>>>> fig.cap="Density plot with out.width=12cm", fig.pos='ht'>>= ggplot(df,
>>>> aes(x = x)) +
>>>> geom_histogram(aes(y = ..density..),
>>>> binwidth = 1, colour = "black", fill = "white") +
>>>> xlab("Improvement, %") +
>>>> ylab("Density") +
>>>> theme_classic()
>>>> @
>>>>
>>>> <<plot-figOutWidthSmall, echo=FALSE, fig.height=2.5, out.width =
>>>> "8cm", fig.cap="Density plot with out.width=8cm", fig.pos='ht'>>=
>>>> ggplot(df, aes(x = x)) +
>>>> geom_histogram(aes(y = ..density..),
>>>> binwidth = 1, colour = "black", fill = "white") +
>>>> xlab("Improvement, %") +
>>>> ylab("Density") +
>>>> theme_classic()
>>>> @
>>>>
>>>> \end{document}
>>>>
>>>> [[alternative HTML version deleted]]
>>>>
>>>> ______________________________________________
>>>> R-help@r-project.org mailing list
>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>> PLEASE do read the posting guide
>>>> http://www.R-project.org/posting-guide.html
>>>> and provide commented, minimal, self-contained, reproducible code.
>>>
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>>>
>>> ______________________________________________
>>> R-help@r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide
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>>> and provide commented, minimal, self-contained, reproducible code.
>>>
>>>
>>>
>>> ______________________________________________
>>> R-help@r-project.org mailing list
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