For school work I use png. Png files are more efficient size/quality wise
than png, and also lend themselves to more generic application/viewing than ps.
In R this typically takes the form of:
setwd(...) #set working directory before starting any work typically at the top
of scripts
... # stuff
png(filename,height=800, width=800)
#graphical commands
dev.off()
One of the great things about the png command is the size formatting. One
great trick is to increase the size of the plotting area, plot, and then in
latex shrink the graphic down. There is alot of graphics where this makes
everything look better with very little work due to everything drawing at a
finer resolution (in some lossy sense).
In your latex you will want to use package "epsfig" because under windows the
png bounding box info isn't what default latex packages expect and epsfig can
fix that easily.
Typically this has the form
\usepackage{epsfig}
\begin{document}
\begin{figure}[!htbp]
\center
\caption{Jittered pairs plot of severity predictors colored by red is
severity 1.}
\label{bcpairs}
\epsfig{file=bcpairs.png, bb= 0 0 800 800,width=5.25in, clip=}
\end{figure}
\end{document}
The key line is \epsfig. bb = is the bounding box which corresponds to
whatever you had in the png command in R. width is where you resize it. You
supply the width and the package will 1 to 1 rescale it.
There are two tricks I picked up in my travels using this for homework. Well
there are three, but I don't have example of the 3rd handy (side by side
subfigures).
One is clipping a figure to get rid of a piece of it. That is a simple as
changing the bb command to only bound the parts you want.
The other is shifting the graphic into the left margin a little bit. Handy for
using the entire page on some graphics that just arnt easy to make any smaller.
That is done like so:
\begin{figure}[tbp]
\caption{Wine data pairs plots colored by cultivar.}
\label{winepairs}
\begin{minipage}{9in}
\hspace{-.75in}
\epsfig{file=ex2pairs.png, bb= 0 0 1200 1200,width=7in, clip=}
\end{minipage}
\end{figure}
The key there is you start a minipage and then shift it to the left. Note here
the command in R was:
png("ex2pairs.png", height=1200, width=1200) for a large scatterplot.
A large scatterplot is an example of something that often looks better painted
at a higher resolution, saved, and then shrunk down.
-
Someone mentioned Sweave. Sweaves value really depends on who you are and what
your doing. Its work cycle is not appropriate for students or anyone that
needs rapid cycle prototyping imo. Its great flaw is that it does not work
well with "changing a little something--looking at the results in R" followed
by "changing a little something in latex--looking at the results in dvi"
repeated over and over and over again. The reason is it has to repeat far to
much work in each cycle. Often times repeating long calculations.
This system you open a script in tinn-r. You run it. You have your texmaker
open. You compilete your document. You dont like the graphic. You make your
change to the plotting in your script. You highlight it and send it to r. You
open it in a graphics viewer via double click or you simply compile your latex
document again. Check it.
Sweave is not at all friendly to that "check your work as you go" mentality.
It really needs a graphical interface that lets you indicate what not to redo,
and just redo things incrementally.
> Date: Fri, 16 May 2008 18:24:00 -0700
> From: [EMAIL PROTECTED]
> To: R-help@r-project.org
> Subject: [R] How to paste graph from R in Latex?
>
> Dear R-expert,
> Is it possible to save graph from R into Latex document? I can see save as
> metafile , PNG, pdf etc, but I'm not sure which one to use.
> Thank you so much for your help.
>
>
>
>
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