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. > > ____________________________________________________________ > GET FREE SMILEYS FOR YOUR IM & EMAIL - Learn more at > http://www.inbox.com/smileys Works with AIM®, MSN® Messenger, Yahoo!® > Messenger, ICQ®, Google Talk and most webmails > > ______________________________________________ > 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. > > ______________________________________________ > 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. > [[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.