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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