[R] Plotting legend outside of chart area

[Peter Alspach]

Tena koe Samantha

You probably need to set some graphics parameters such as xpd and mar (see ?par), and then give the × and y location of the legend rather than 'bottomright' (see ?legend).

HTH ....

Peter Alspach

PS Please don't post in html (see the posting guide) ... P 

-----Original Message-----
From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Samantha Allcock
Sent: Thursday, 25 June 2015 4:35 a.m.
To: 'r-help at r-project.org'
Subject: [R] Plotting legend outside of chart area

Hello,

I am trying to add a legend to my PCA plot so that it looks neat. I think plotting this outside of the chart area would be good but I cannot seem to fathom the correct code for this. I wondered if anyone could help please?

The code I am using is as follows:

grp<- with(Matan, cut(R_category_no,14, labels=1:14)) cols <- c("grey0", "wheat", "red", "cyan", "orange", "darkolivegreen2", "purple3", "royalblue", "burlywood4", "orchid", "forestgreen", "green", "gray", "yellow1") plot(geopca, display="sites", scaling=3, type="n") points(geopca, display="sites", scaling=3, col=cols[grp], pch=16)

legend("bottomright", col=c("grey0", "wheat", "red", "cyan", "orange", "darkolivegreen2", "purple3", "royalblue", "burlywood4", "orchid", "forestgreen", "green", "gray", "yellow1"), c("Control type 1", "Control type 2", "External/Courtyard", "Midden", "Animal Occupation", "External fire installations and ashy deposits", "Internal fire installations and ashy deposits", "Hearth make-up", "Floors and surfaces", "Plasters and clay features", "Storage features", "Platforms and benches", "Mortars", "Roofs and roofing materials"), pch=16, cex=0.75, bty="n")

Thank you for your time in advance


Dr Samantha Lee Allcock
Faculty of Science and Technology
Department of Archaeology, Anthropology and Forensic Science Christchurch House Rm: C133 Bournemouth University Talbot Campus Poole
BH12 5BB
Tel: 01202 9(62474)

sallcock at bournemouth.ac.uk<mailto:sallcock at bournemouth.ac.uk>
research.bournemouth.ac.uk/2014/07/inea-project-2


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