------------------------------ Message: 2 Date: Thu, 24 May 2012 11:41:06 +0430 From: Mahnaz Rabbaniha<rab.mahnaz at gmail.com> To: r-sig-ecology<r-sig-ecology at r-project.org> Subject: [R-sig-eco] Poisson regression Message-ID: <CANLCanXsF0zpyC-R22F32VeEEyJq7KfN8KsGKXFfC44UtY_64Q at mail.gmail.com> Content-Type: text/plain Dear all to find relation between non-normal response with independents variable i use this code: model1<-gam(Clupeidae~s(depth)+s(temperature)+s(salinity),poisson) the result shown is: There were 50 or more warnings (use warnings() to see the first 50)
warnings(model1)
Warning messages: 1: In dpois(y, mu, log = TRUE) : non-integer x = 2.079542 Error in cat(list(...), file, sep, fill, labels, append) : argument 2 (type 'list') cannot be handled by 'cat' what is meaning it? do i allow use it for continue?
Check whether your Clupeidae variable contains non-integers....... Alain
thanks
Dr. Alain F. Zuur First author of: 1. Analysing Ecological Data (2007). Zuur, AF, Ieno, EN and Smith, GM. Springer. 680 p. URL: www.springer.com/0-387-45967-7 2. Mixed effects models and extensions in ecology with R. (2009). Zuur, AF, Ieno, EN, Walker, N, Saveliev, AA, and Smith, GM. Springer. http://www.springer.com/life+sci/ecology/book/978-0-387-87457-9 3. A Beginner's Guide to R (2009). Zuur, AF, Ieno, EN, Meesters, EHWG. Springer http://www.springer.com/statistics/computational/book/978-0-387-93836-3 4. Zero Inflated Models and Generalized Linear Mixed Models with R. (2012) Zuur, Saveliev, Ieno. http://www.highstat.com/book4.htm Other books: http://www.highstat.com/books.htm Statistical consultancy, courses, data analysis and software Highland Statistics Ltd. 6 Laverock road UK - AB41 6FN Newburgh Tel: 0044 1358 788177 Email: highstat at highstat.com URL: www.highstat.com URL: www.brodgar.com