--- On Tue, 6/30/09, maram salem <marammagdysalem at yahoo.com> wrote:
> From: maram salem <marammagdysalem at yahoo.com>
> Subject: [R] (no subject)
> To: r-help at r-project.org
> Received: Tuesday, June 30, 2009, 6:34 AM
> Hi Group,
> I've a vector of 1000 numeric values for which I want to
> draw a histogram. I've read this vector into R with no
> variable name.I mean only the 1000 values, which makes V1
> the name of the variable by default??
No it defaults to nothing. Type ls() to see this.
You must explicitly name the variable: V1 <- whatever
Be careful, you likely are reading it in as a data.frame. Try class(V12) or
str(V1) to see what data structure you have.
Then I tried>
> > hist(V1, breaks = "Sturges",
> +????? freq = NULL, probability = !freq,
> +????? include.lowest = TRUE, right = TRUE,
> +????? density = NULL, angle = 45, col = NULL, border
> = NULL,
> + main = paste("Histogram of" , V1name),
> + V1lim = range(breaks), ylim = NULL,
> + V1lab = V1name, ylab,
> + axes = TRUE, plot = TRUE, labels = FALSE,
> +????? nclass = NULL)
>
> It gave me this error:
> Error in hist(V1, breaks = "Sturges", freq = NULL,
> probability = !freq,? :
> ? object "V1" not found
>
> I don't get what's wrong,( An R beginner)??
>
>
>
> ? ? ?
> ??? [[alternative HTML version deleted]]
>
>
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>
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