Message-ID: <793424.9223.qm@web23305.mail.ird.yahoo.com>
Date: 2008-03-12T10:37:25Z
From: Giacomo Prodi
Subject: hello! i need help for a specific graphic issue
hello, ladyes and gentlemans.
check this:
means<-c(4,6,8)
stand.error<-c(0.1,0.3,0.5)
now i've strongly tryed to scatterplot the
means(y-axis),by showing their sd with the
arrow(..,code=3,angle=90) function.
The problem is that my x-axis has categorical values
(say, factor(x)), and the arrows() can't recognize
them as right coordinates.
?????
thank you all in advance
B.F. insubria university (varese)
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