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List:       r-help
Subject:    [R] (what I think are) two easy questions
From:       "Rob Tirrell" <r.tirrell () gmail ! com>
Date:       2006-05-31 19:01:11
Message-ID: 74b148850605311201w4af15d4fh2b729384b103fca1 () mail ! gmail ! com
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Hello,
I have a table of data (attachment) from which I am trying to generate a
graph.  I import the data into a vector (is that the right term? matrix
maybe), which seems to work fine except there is an X prepended to each
date.  This is my first problem.  My second is how would I make a graph of
the average weight of each group (PC3/CO, PC3/FO, FADU/CO, FADU/FO) vs.
time.  I would like each different groups weight to be differentiated in a
legend and all four displayed on one graph, with the dates as x values and
weight in grams as the y values.  I have been able to grasp much of R, but
for some reason this (simple to do in Excel or OpenOffice) evades me.
Thanks, Rob


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