Re: [R] Validity of GLM using Gaussian family with sqrt link

2008-12-11 Thread Prof Brian Ripley
project.orgcc r-help@r-project.org Subject 11/12/2008 15:20 Re: [R] Validity of GLM using Gaussian family with sqrt link De

Re: [R] Validity of GLM using Gaussian family with sqrt link

2008-12-11 Thread Gerard M. Keogh
project.orgcc r-help@r-project.org Subject 11/12/2008 15:20 Re: [R] Validity of GLM using

Re: [R] Validity of GLM using Gaussian family with sqrt link

2008-12-11 Thread Lam, Tzeng Yih
State University -Original Message- From: Prof Brian Ripley [mailto:[EMAIL PROTECTED] Sent: Wed 12/10/2008 11:45 PM To: Lam, Tzeng Yih Cc: r-help@r-project.org Subject: Re: [R] Validity of GLM using Gaussian family with sqrt link a) There is a difference between link=sqrt and link="

Re: [R] Validity of GLM using Gaussian family with sqrt link

2008-12-10 Thread Prof Brian Ripley
a) There is a difference between link=sqrt and link="sqrt". link: a specification for the model link function. This can be a name/expression, a literal character string, a length-one character vector or an object of class '"link-glm"' (such as generated by 'make

[R] Validity of GLM using Gaussian family with sqrt link

2008-12-10 Thread Lam, Tzeng Yih
Dear all, I have the following dataset: each row corresponds to count of forest floor small mammal captured in a plot and vegetation characteristics measured at that plot > sotr plot cnt herbc herbht 1 1A1 0 37.08 53.54 2 1A3 1 36.27 26.67 3 1A5 0 32.50 30.62 4 1A7