Message-ID: <4B549866.3030302@ucalgary.ca>
Date: 2010-01-18T17:20:38Z
From: Peter Ehlers
Subject: lattice and probem
In-Reply-To: <7582374c.27e54e1f.4b548406.14327@o2.pl
robert-mcfadden at o2.pl wrote:
> I have a simple chart:
> barchart(Counts ~ Purchase | Products , data = my.data, groups = Model)
> where Purchase in data has values {0,1,2,3...10}. In a chart xlab begins with 1 not 0. How to change it?
I guess that barchart() will coerce Purchase to be a factor with
levels '1' to '10'. So make it a factor with your choice of
levels:
PurchaseF <- factor(Purchase, levels = 0:10)
(or use the scales= argument in barchart())
-Peter Ehlers
>
> Best,
> Robert
>
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>
--
Peter Ehlers
University of Calgary
403.202.3921