[R] Plotting Example Fail

[Bert Gunter]

But please spend some time with an R tutorial or two (An Intro to R
ships with R; there are many more on the Web) before you post further
here. Many such elementary confusions and time wasted -- both yours
and ours -- will be avoided if you do so.

Cheers,
Bert


Bert Gunter

"Data is not information. Information is not knowledge. And knowledge
is certainly not wisdom."
   -- Clifford Stoll


On Tue, Nov 24, 2015 at 12:43 PM, Timothy D. Legg <r at timothylegg.com> wrote:
> Thank you for your suggestions.  I am quite grateful to understand that
> plotting is reliable and consistent in R.  I had believed that this was
> based on a built-in dataset within the R programming language, just as the
> New Zealand volcano is.
>
> I look forward to further participation in R as I continue to develop
> skills in this arena.
>
> Timothy D. Legg
>
>> Hello,
>>
>> I am quite new to R and have high expectations for my future with it.
>>
>> R version 3.0.2 (2013-09-25) -- "Frisbee Sailing"
>> Copyright (C) 2013 The R Foundation for Statistical Computing
>> Platform: x86_64-pc-linux-gnu (64-bit)
>>
>> I have stepped back to an earlier tutorial and found an odd inconsistency
>> with one of the examples:
>>
>> plot(table(rpois(100, 5)), type = "h", col = "red", lwd = 10, main =
>> "rpois(100, lambda = 5)")
>>
>> I read the local documentation on the plot command and it's arguments.
>>>From that, I learned that 'main' defines the title from a text string.  I
>> decide to modify some values to see how the resulting behavior changes.
>> What I didn't expect was that modifying the text string caused the chart
>> to change greatly.
>>
>> plot(table(rpois(100, 5)), type = "h", col = "red", lwd = 10, main =
>> "rpois(100, lambda = 4)")
>>
>> With the previous line, the columns change values.
>>
>> plot(table(rpois(100, 5)), type = "h", col = "red", lwd = 10, main =
>> "hello")
>>
>> This line even adds a 12th column.
>>
>> I return to plot the original and the output has changed again.   Here are
>> some screenshots
>>
>> http://timothylegg.com/R/lambda5_.png
>> http://timothylegg.com/R/lambda5.png
>> http://timothylegg.com/R/lambda4.png
>> http://timothylegg.com/R/hello.png
>>
>> What am I doing wrong to get inconsistent results like this?  I'm very new
>> to R and really hoping that this is a misunderstanding on my part.
>>
>> ______________________________________________
>> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> 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.
>>
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.