Erin Hodgess wrote:
Your data set has 5 variables; res$V1, res$V2....etc
When you plot, you need to do:
hist(res$V1)
Yes, but it seems that there is only one row of data? If the intention
was just to read 5 numbers into a vector, then use scan(), not
read.table(). (A histogram is pretty useless with 5 values, though).
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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