search for: jsimonof

Displaying 3 results from an estimated 3 matches for "jsimonof".

2005 Jan 20
5
glm and percentage data with many zero values
Dear all, I am interested in correctly testing effects of continuous environmental variables and ordered factors on bacterial abundance. Bacterial abundance is derived from counts and expressed as percentage. My problem is that the abundance data contain many zero values: Bacteria <-
2003 Jun 12
0
SP? Re: Rounding problem R vs Excel
...ter, (1999), Univ. of Massachusetts Office of > Information > >Technology > >http://www.umass.edu/acco/statistics/handout/excel.html > > > > > >Statistical analysis using Microsoft Excel > >Jeffrey Simonoff, (2002) > >at > http://www.stern.nyu.edu/~jsimonof/classes/1305/pdf/excelreg. > pdf > > > > > >Testing the Intrinsic Functions of Excel > >National Physical Laboratory, UK > >http://www.npl.co.uk/ssfm/ssfm1/validate/testing/excel.html > > > > > > > >There are also some general articles on sev...
2007 Sep 25
7
Who uses R?
Dear R users, I have started work in a Statistics government department and I am trying to convince my bosses to install R on our computers (I can't do proper stats in Excel!!). They asked me to prove that this is a widely used software (and not just another free-source, bug infected toy I found on the web!) by suggesting other big organisations that use it. Are you aware of any reputable