# [R] help needed: Plotting step by step.

Charles C. Berry cberry at tajo.ucsd.edu
Thu Apr 24 17:45:38 CEST 2008

```On Thu, 24 Apr 2008, Atul Kulkarni wrote:

> Hi,
>
> Thanks for help.
>
> The ecdf has jumps of 1/n but I need jumps of 1. How do I do this? if I can

See
?stepfun

HTH,

Chuck
> do this then I think Ic an plot the data properly. I am plotting epidemic
> simulation and want to plot my 2 processes Infection and Symptoms (after
> incubation) on the same chart to compare them.
>
> Atul.
>
> On Wed, Apr 23, 2008 at 12:35 PM, Charles C. Berry <cberry at tajo.ucsd.edu>
> wrote:
>
>>
>> Maybe like this?
>>
>>  proc.1 <- rexp(200,1)
>>> proc.2 <- rexp(200,2)
>>> plot( ecdf( proc.1 ), xlim=range( proc.1, proc.2 ) )
>>> plot( ecdf( proc.2 ), add=T, col.points='red' )
>>>
>>>
>> See
>>
>>        ?ecdf
>>        ?plot.stepfun
>>
>>
>> HTH,
>>
>> Chuck
>>
>>
>> On Wed, 23 Apr 2008, Greg Snow wrote:
>>
>>  Can you show us the code you used for the 5 to 10 points? (either
>>> generate some random data, or use a sample dataset).
>>>
>>> --
>>> Gregory (Greg) L. Snow Ph.D.
>>> Statistical Data Center
>>> Intermountain Healthcare
>>> greg.snow at imail.org
>>> (801) 408-8111
>>>
>>>
>>>
>>>  -----Original Message-----
>>>> From: r-help-bounces at r-project.org
>>>> [mailto:r-help-bounces at r-project.org] On Behalf Of Atul Kulkarni
>>>> Sent: Wednesday, April 23, 2008 9:07 AM
>>>> To: r-help at r-project.org
>>>> Subject: [R] help needed: Plotting step by step.
>>>>
>>>> Hello,
>>>>
>>>> I have generated 2 Poisson processes and want to plot them on
>>>> a single graph in a step by step manner in order to be able
>>>> to compare them. I tried plot and biplot but it does not
>>>> help, I could connect two points by hand for point graph if
>>>> they were 5 or 10 I have more than 200 such point to be
>>>> connected and Poisson cluster makes it difficult for me to
>>>>
>>>> Can anyone tell me which is the function that can plot a
>>>> stepwise graph for me? I did google over the plot for step
>>>> fun but did not understand much of it. A simpler help would
>>>> be more useful to me, as I am not a expert either in Statistics or R.
>>>>
>>>> Regards,
>>>> Atul.
>>>>
>>>> --
>>>> Atul S. Kulkarni
>>>> Department of Computer Science,
>>>> University Of Minnesota,
>>>> Duluth, MN 55812.
>>>> www.d.umn.edu/~kulka053 <http://www.d.umn.edu/%7Ekulka053>
>>>> ---------------------------------------------------------
>>>> "Before you start some work, always ask yourself three
>>>> questions - Why am I doing it, What the results might be and
>>>> Will I be successful. Only when you think deeply and find
>>>> Chanakya quotes (Indian politician, strategist and writer,
>>>> 350 BC-275 BC)
>>>>
>>>>        [[alternative HTML version deleted]]
>>>>
>>>> ______________________________________________
>>>> R-help at r-project.org mailing list
>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>> http://www.R-project.org/posting-guide.html
>>>> and provide commented, minimal, self-contained, reproducible code.
>>>>
>>>>
>>> ______________________________________________
>>> R-help at r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>>
>>>
>> Charles C. Berry                            (858) 534-2098
>>                                            Dept of Family/Preventive
>> Medicine
>> E mailto:cberry at tajo.ucsd.edu               UC San Diego
>> http://famprevmed.ucsd.edu/faculty/cberry/  La Jolla, San Diego 92093-0901
>>
>>
>>
>
>
> --
> Atul S. Kulkarni
> Department of Computer Science,
> University Of Minnesota,
> Duluth, MN 55812.
> www.d.umn.edu/~kulka053
> ---------------------------------------------------------
> "Before you start some work, always ask yourself three questions - Why am I
> doing it, What the results might be and Will I be successful. Only when you
> think deeply and find satisfactory answers to these questions, go ahead."
> Chanakya quotes (Indian politician, strategist and writer, 350 BC-275 BC)
>

Charles C. Berry                            (858) 534-2098
Dept of Family/Preventive Medicine
E mailto:cberry at tajo.ucsd.edu	            UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/  La Jolla, San Diego 92093-0901

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