Re: [R] R help

From: Duncan Murdoch <murdoch_at_stats.uwo.ca>
Date: Tue, 29 Apr 2008 06:35:39 -0400

On 28/04/2008 9:47 PM, Debasish Roy 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.

I'd guess it's not a blank plot, it's simply a histogram with one big bar taking up the whole of the plot. As others have mentioned, you only have one observation in each column.

By the way, using a more informative subject line would be helpful. Most of the messages in the R-help mailing list are about R help.

Duncan Murdoch

> 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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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Tue 29 Apr 2008 - 10:51:43 GMT

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