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 <[EMAIL PROTECTED]> 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: [EMAIL PROTECTED]
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