Hi,
You need to tell R where to find them, since they aren't R objects.
(You can see all the actual objects with ls().)
Two of the many options:
with(demand, plot(Qty, Date))
plot(demand$Qty, demand$Date)
Sarah
On Fri, May 27, 2011 at 2:35 PM, Struckmeier, Nathanael
<NStruckmeier at harryanddavid.com> wrote:> Hello List!
>
>
>
> Thank you for your input so far. I have successfully imported my data
> into R but have hit a snag in plotting. Simple plot commands are unable
> to find my headers when I try and plot my data on an x/y scatter.
>
>
>
> My data is a 2 column 8000 row table (saved as .txt file) imported into
> R.
>
>>demand=read.delim("C:\\Documents and Settings\\E066582\\My
> Documents\\R\\R-2.13.0\\bin\\demand.txt")
>
>
>
> First rows with headers are as shown:
>
>> demand[1,]
>
> ? ? ? ?Date Qty
>
> 1 12/31/2006 ? 1
>
> With two columns Date/Qty.
>
>
>
> I attempted to plot and received an error. My headers were not found as
> an object in R...maybe I'm missing something, but I was under the
> impression I didn't need to create each header as an object...
>
>> plot(Qty, Date)
>
> Error in plot(Qty, Date) : object 'Qty' not found
>
>> plot(Date, Qty)
>
> Error in plot(Date, Qty) : object 'Date' not found
>
>
>
> What step in plotting am I missing?
>
>
>
>
--
Sarah Goslee
http://www.functionaldiversity.org