Confusing error statement
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