Re: [R] R help

From: Erin Hodgess <erinm.hodgess_at_gmail.com>
Date: Mon, 28 Apr 2008 21:00:44 -0500

Your data set has 5 variables; res$V1, res$V2....etc

When you plot, you need to do:
hist(res$V1)

On Mon, Apr 28, 2008 at 8:47 PM, Debasish Roy <debauck_at_yahoo.com> wrote:
> I tried to read a dataset and then draw a histogram with a freqeuncy density curve fitted on the top of this.
> I used the command
>
> res <- read.table("C:/Documents and Settings/db/Desktop/res.dat")
> and found
> > res[1:5]
> V1 V2 V3 V4 V5
> 1 -0.4806 0.5075 0.0491 -0.7985 -0.666
> Then I got the following when I troied to plot it
> > hist(res)
> Error in hist.default(res) : 'x' must be numeric
>
> Even I tried
> > hist(res[,2])
> which is showing a blank plot.
> My suspision is something is wrong in the way the data was read (with V1, V2, V3 etc). Can someone please help me how to get rid of this problem ?
>
>
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>

-- 
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: erinm.hodgess_at_gmail.com

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Received on Tue 29 Apr 2008 - 02:03:47 GMT

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