R help - Oct 2010 - Confusing error statement

Greetings
     Using the following command I've been trying to subset a dataframe of
counts of an organism to compute the sizes of groups for use as a
predictor:

Hs.patches <- as.data.frame(with(Hs.long,
      table(Cave,Year,Month,Region,Plot,)))

I am getting the following error message that I do not understand:

ERROR:  argument is missing, with no default

Can anyone shed light on this and suggest a possible fix?
Cheers
Kurt

***************************************************************
Kurt Lewis Helf, Ph.D.
Ecologist
EEO Counselor
National Park Service
Cumberland Piedmont Network
P.O. Box 8
Mammoth Cave, KY 42259
Ph: 270-758-2163
Lab: 270-758-2151
Fax: 270-758-2609
****************************************************************
Science, in constantly seeking real explanations, reveals the true majesty
of our world in all its complexity.
-Richard Dawkins

The scientific tradition is distinguished from the pre-scientific tradition
in having two layers.  Like the latter it passes on its theories but it
also passes on a critical attitude towards them.  The theories are passed
on not as dogmas but rather with the challenge to discuss them and improve
upon them.
-Karl Popper

...consider yourself a guest in the home of other creatures as significant
as yourself.
-Wayside at Wilderness Threshold in McKittrick Canyon, Guadalupe Mountains
National Park, TX

Cumberland Piedmont Network (CUPN) Homepage:
http://tiny.cc/e7cdx

CUPN Forest Pest Monitoring Website:
http://bit.ly/9rhUZQ

CUPN Cave Cricket Monitoring Website:
http://tiny.cc/ntcql

CUPN Cave Aquatic Biota Monitoring Website:
http://tiny.cc/n2z1o

<Kurt_Helf <at> nps.gov> writes:
> 
> Greetings
>      Using the following command I've been trying to subset a dataframe
of
> counts of an organism to compute the sizes of groups for use as a
> predictor:
> 
> Hs.patches <- as.data.frame(with(Hs.long,
>       table(Cave,Year,Month,Region,Plot,)))
> 
> I am getting the following error message that I do not understand:
> 
> ERROR:  argument is missing, with no default
   There seems to be a spurious comma in your 'table' call.
(Also, I don't believe that's actually the precise error you
got -- it's good to cut and paste errors exactly, in case you
omit some important detail when transcribing)
> x <- 1:3
> y <- 2:4
> table(x,y,)
Error in table(x, y, ) : argument is missing, with no default

On Oct 22, 2010, at 9:22 AM, Kurt_Helf at nps.gov wrote:
> Greetings
>     Using the following command I've been trying to subset a  
> dataframe of
> counts of an organism to compute the sizes of groups for use as a
> predictor:
>
> Hs.patches <- as.data.frame(with(Hs.long,
>      table(Cave,Year,Month,Region,Plot,)))
Not really sure what you intended. Did you want a contingency table in  
long format or a subset:

If the first, then perhaps:

Hs.patches <-with(Hs.long, as.data.frame(
                     table(Cave,Year,Month,Region,Plot,)))

(There is also an equivalent as.data.frame.table function.)

-- 
David.
>
> I am getting the following error message that I do not understand:
>
> ERROR:  argument is missing, with no default
>
> Can anyone shed light on this and suggest a possible fix?
> Cheers
> Kurt
>
> ***************************************************************
> Kurt Lewis Helf, Ph.D.
> Ecologist
> EEO Counselor
> National Park Service
> Cumberland Piedmont Network
> P.O. Box 8
> Mammoth Cave, KY 42259
> Ph: 270-758-2163
> Lab: 270-758-2151
> Fax: 270-758-2609
> ****************************************************************
> Science, in constantly seeking real explanations, reveals the true  
> majesty
> of our world in all its complexity.
> -Richard Dawkins
>
> The scientific tradition is distinguished from the pre-scientific  
> tradition
> in having two layers.  Like the latter it passes on its theories but  
> it
> also passes on a critical attitude towards them.  The theories are  
> passed
> on not as dogmas but rather with the challenge to discuss them and  
> improve
> upon them.
> -Karl Popper
>
> ...consider yourself a guest in the home of other creatures as  
> significant
> as yourself.
> -Wayside at Wilderness Threshold in McKittrick Canyon, Guadalupe  
> Mountains
> National Park, TX
>
> Cumberland Piedmont Network (CUPN) Homepage:
> http://tiny.cc/e7cdx
>
> CUPN Forest Pest Monitoring Website:
> http://bit.ly/9rhUZQ
>
> CUPN Cave Cricket Monitoring Website:
> http://tiny.cc/ntcql
>
> CUPN Cave Aquatic Biota Monitoring Website:
> http://tiny.cc/n2z1o
>
> ______________________________________________
> 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.
David Winsemius, MD
West Hartford, CT