[R-sig-eco] Poisson regression

2012-05-24 Thread Mahnaz Rabbaniha
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:

Re: [R-sig-eco] Poisson regression

2012-05-24 Thread Gavin Simpson
On Thu, 2012-05-24 at 11:41 +0430, Mahnaz Rabbaniha wrote: 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) I don't know if this is the problem or not, but you can't call

Re: [R-sig-eco] Poisson regression

2012-05-24 Thread Highland Statistics Ltd
-- Message: 2 Date: Thu, 24 May 2012 11:41:06 +0430 From: Mahnaz Rabbaniharab.mah...@gmail.com To: r-sig-ecologyr-sig-ecology@r-project.org Subject: [R-sig-eco] Poisson regression Message-ID:

[R-sig-eco] Multiple comparisons among predictors generated from same data

2012-05-24 Thread J Straka
Hello, I'm planning on using a regression model to describe seed set of plants (my response) using some sort of predictor based on temperature. I have a number of temperature variables calculated from the same set of data (hourly temperatures for the growing season, converted to variables such