Hello.  I am sorry for posting a (seemingly) simple question, but I have
just spent 2 hours trying to find the answer, without success.  I want
to make a histogram with conditioning on a factor, using Trellis
graphics.  However, I do not want any colours (only black and white)
either in the histograms or in the strip.  There must be some simple
argument but I can’t find it.  Here is my code so far:

 

> histogram(~GRC.SLA|as.factor(species.type),data=group.means,

+ strip=function(...)

+
strip.default(...,style=1,factor.levels=c("Conifers","Trees","Herbs","Mo
nocots")))

 

As a default, this produces the bars in a pale blue and the strip in
orange-yellow.

 

Thanks.

 

Bill Shipley

Subject Matter Editor, Ecology

North American Editor, Annals of Botany

Département de biologie, Université de Sherbrooke,

Sherbrooke (Québec) J1K 2R1 CANADA

Bill.Shipley@USherbrooke.ca

 <http://callisto.si.usherb.ca:8080/bshipley/>
http://callisto.si.usherb.ca:8080/bshipley/

 


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