lyx_mirror/lib/examples/sweave.lyx
Pavel Sanda a33aa0632d Make sweave example working. Patch from Liviu.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@37220 a592a061-630c-0410-9148-cb99ea01b6c8
2011-01-15 20:30:02 +00:00

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#LyX 2.0.0svn created this file. For more info see http://www.lyx.org/
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sweave
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\index Index
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\begin_body
\begin_layout Title
A Test File
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\begin_layout Author
Friedrich Leisch
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LyX
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port
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by Gregor Gorjanc
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\end_inset
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\begin_layout Standard
A simple example that will run in any S engine: The integers from 1 to 10
are
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\begin_layout Chunk
<<print=TRUE>>=
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1:10
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<<results=hide>>=
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print(1:20)
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@ % the above is just to ensure that 2 code chunks can follow each other
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We can also emulate a simple calculator:
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<<echo=TRUE,print=TRUE>>=
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1 + 1
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1 + pi
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sin(pi/2)
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@
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\begin_layout Standard
Now we look at Gaussian data:
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<<>>=
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library(stats)
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x <- rnorm(20)
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print(x)
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print(t1 <- t.test(x))
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@
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Note that we can easily integrate some numbers into standard text: The third
element of vector
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x
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is
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x[3]
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, the
\begin_inset Formula $p$
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-value of the test is
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format.pval(t1$p.value)
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\end_inset
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\begin_layout Standard
\family roman
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Now we look at a summary of the famous iris dataset, and we want to see
the commands in the code chunks:
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\begin_inset Flex Sweave Options
status open
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echo=true,keep.source=true
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\begin_layout Chunk
<<engine=R>>=
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# A comment
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data(iris)
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summary(iris)
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@ % def
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placement tbph
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\noindent
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<<fig=TRUE>>=
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library(graphics)
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pairs(iris)
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@
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\end_inset
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\begin_inset Caption
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Pairs plot of the iris data.
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\noindent
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<<fig=true>>=
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boxplot(Sepal.Length~Species,data=iris)
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@
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\end_inset
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\begin_layout Plain Layout
\begin_inset Caption
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Boxplot of sepal length grouped by species.
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\end_inset
\end_layout
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\begin_layout Chunk
<<engine=S4>>=
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function.that.comes.only.with.Splus(x)
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@
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\noindent
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<<fig=true>>=
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boxplot(Sepal.Length~Species,data=iris)
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@
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\end_inset
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\begin_layout Plain Layout
\begin_inset Caption
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Boxplot of sepal length grouped by species
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