Le 11 février 2012 02:33, David Winsemius <dwinsem...@comcast.net> a écrit :
>
> On Feb 10, 2012, at 7:05 PM, Adel ESSAFI wrote:
>
> Hi list
>>
>>
>> I need some help for drawing some histograms
>>
>> I have a dataframe , say,
>> X Y Z T
>>
>> I want to draw a histogram Z-T for each value of the couple (X-Y).
>> When I use thus syntax
>>
>> library(lattice)
>>> histogram(law[,3] ~ law[,66] | law[,1] )
>>>
>>
> Perhaps (but untested in the absence of data);
>
> histogram( Z ~ T | interaction(X, Y) , data=dfrmname )
>
> Thanks ,
that helped a lot.
now, I have another problem: I want to draw many (two) figures together.
The par(new=T) directve does not recognize the ploy provided by lattice
library
when I tired :
> xyplot(law[,66] ~ law[,3]| interaction(law[,1],law[,2]),type='l')
> par(new=T)
*Warning message:
In par(new = T) : calling par(new=TRUE) with no plot*
> xyplot(law[,67] ~ law[,3]| interaction(law[,1],law[,2]),type='l')
and the second xyplot() draws a new figure.
what can I do to draw to figures together using lattice?
Thanks
>
>
>> it draws multiple histograms but by selecting distinct values of law[,1]
>> The deal is to make the same thing but for a couple of columns
>>
>> Thanks in advance for help
>>
>> Adel
>>
>>
> --
>
> David Winsemius, MD
> West Hartford, CT
>
>
--
PhD candidate in Computer Science
Address
3 avenue lamine, cité ezzahra, Sousse 4000
Tunisia
tel: +216 97 246 706 (+33640302046 jusqu'au 15/6)
fax: +216 71 391 166
[[alternative HTML version deleted]]
______________________________________________
R-help@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.
