Thank you all,

I accidentally loaded a variable named "c".

All the best,

Fabio

On Wed, Jul 23, 2008 at 1:08 PM, Prof Brian Ripley <ripley@stats.ox.ac.uk>
wrote:

> Did you start R with --vanilla to check that this is not something you have
> done?  It is good practice, and I suspect will show you that you have
> mis-diagosed this problem.
>
> On Wed, 23 Jul 2008, Fabio Sanchez wrote:
>
> Dear R-nautes,
>>
>> I installed the 2.7.1 version of R and found it is not possible to modify
>> graphical parameters with par().
>>
>> for example;
>>
>> par(mfrow=c(2,2))
>>>
>> Error in c(2, 2) : unused argument(s) (2)
>>
>
> That error is not from par() but from c().  I suspect you have defined a
> function c() in your workspace that is breaking your code.
>
>  par$mfrow
>>>
>> NULL
>>
>
> That is not supposed to work.  Perhaps you meant par()$mfrow?
>
>
>  Does any one know what is the cause of this problem?
>>
>> Regards,
>>
>> Fabio
>> --
>> Fabio S?nchez, MD, MSc, PhD
>> Unit of Dermatology and Venereology
>> Department of Medicine
>> Karolinska Institute
>> SE-17176 Karolinska University Hospital
>> Phone: +46 8 51772158
>> Fax: +46 8 51773620
>>
>>        [[alternative HTML version deleted]]
>>
>>
>>
> --
> Brian D. Ripley,                  ripley@stats.ox.ac.uk
> Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
> University of Oxford,             Tel:  +44 1865 272861 (self)
> 1 South Parks Road,                     +44 1865 272866 (PA)
> Oxford OX1 3TG, UK                Fax:  +44 1865 272595
>



-- 
Fabio Sánchez, MD, MSc, PhD
Unit of Dermatology and Venereology
Department of Medicine
Karolinska Institute
SE-17176 Karolinska University Hospital
Phone: +46 8 51772158
Fax: +46 8 51773620

	[[alternative HTML version deleted]]

