[R] Problems with statistics

David Winsemius dwinsemius at comcast.net
Thu Jan 22 22:58:25 CET 2009


And to do the input section of the task, you should first read an  
introductory text and then refer to the help pages:

?read.table
?read.csv   # same page

And don't forget:
http://www.R-project.org/posting-guide.html

-- 
David Winsemius

On Jan 22, 2009, at 4:33 PM, Mike Lawrence wrote:

> n.means = with(my.data,aggregate(n_red,list(n=n),mean))
>
> plot(n.means)
>
> On Thu, Jan 22, 2009 at 5:17 PM,  <odif at gmx.de> wrote:
>> Hello,
>>
>> I have the following csv file
>>
>> n,      n_red
>> 1,      0
>> 1,      1
>> 2,      1
>> 2,      1
>> 3,      0
>> 4,      1
>> 4,      2
>> 4,      3
>>
>> I would like to plot this data. On the x-axis there should be n and  
>> on the
>> y-axis the mean of all n_red where n is the according value on the  
>> x-axis.
>> The plot should look like plotting the following data:
>>
>> n,      n_red
>> 1,      0.5
>> 2,      1
>> 3,      0
>> 4,      2
>>
>> Is there any simple way to do this?
>>
>> Greetings
>> odif
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> 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.
>>
>
>
>
> -- 
> Mike Lawrence
> Graduate Student
> Department of Psychology
> Dalhousie University
> www.thatmike.com
>
> Looking to arrange a meeting? Check my public calendar:
> http://www.thatmike.com/mikes-public-calendar
>
> ~ Certainty is folly... I think. ~
>
> ______________________________________________
> R-help at r-project.org mailing list
> 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.




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