Re: [R] Arrangement of Lattice Histograms - Top to bottom and then left to right?

From: Bert Gunter <gunter.berton_at_gene.com>
Date: Tue, 05 Apr 2011 12:04:41 -0700

Look for the index.cond argument at the bottom of the Help page for xyplot. -- Bert

On Tue, Apr 5, 2011 at 11:37 AM, Les <lnharris_at_zoology.ubc.ca> wrote:
> Hi List,
> Using Lattice, I have created a plot of histograms showing Fork Length by
> Year. The plot shows the histograms in 3 columns and 5 rows. Using the
> as.table=T function I can get the years to start on top. However, what I
> would like to do is have the first year start in the top left (column 1, row
> 1; as it is now) and add the subsequent histograms to the plot going down
> the column and then over by row (example and current code is shown below).
> Is this possible? I have spent a great deal of time searching, and have not
> found any clues. Any help/ideas would be greatly appreciated.
>
> For example, what is being done now:
>
> 1974 1975 1976
> 1977 1978 1979
> 1980 1981 1982
>
> and what I am hoping for:
>
> 1974 1977 1980
> 1975 1978 1981
> 1976 1979 1982
>
> Thank you kindly,
> Les
>
> data=read.csv("AllData.csv",sep=",",header=T)
> data$year=as.factor(data$year)
> ferg=data[data$wtrbody=="Ferguson",c(1:12)]
> library(lattice)
>
> strip.background=trellis.par.get("strip.background")
> trellis.par.set(strip.background = list(col = grey(7:1/8)))
>
> histogram(~fl|year, data=ferg, as.table=T, type="count",
>        col='dark grey',layout=c(3,5),lwd=2, lty=1,
>        xlab=list("Fork Length (mm)", cex=1.4,font=2),
>        breaks=seq(from=300,to=900,by=25),
>        ylab=list("Frequency",cex=1.4,font=2),
>        scales=list(font=2,cex=1.1, tck=c(1,0), alternating=1,
>        y=list(relation="free",tick.number=3)),
>        par.strip.text=list(cex=1.2),font=2,
>        aspect=0.6)
>
> --
> View this message in context: http://r.789695.n4.nabble.com/Arrangement-of-Lattice-Histograms-Top-to-bottom-and-then-left-to-right-tp3428825p3428825.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

-- 
"Men by nature long to get on to the ultimate truths, and will often
be impatient with elementary studies or fight shy of them. If it were
possible to reach the ultimate truths without the elementary studies
usually prefixed to them, these would not be preparatory studies but
superfluous diversions."

-- Maimonides (1135-1204)

Bert Gunter
Genentech Nonclinical Biostatistics

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Received on Tue 05 Apr 2011 - 19:09:11 GMT

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