>Such a model consists of a series of terms separated by +operators. In the above ,term means individual variable.
>The terms themselves consist of variable and factor names separated by : >operators. What does term mean in this? >Such a term is interpreted as the interaction of all the variables and factors >appearing in the term. What does interaction mean, and what does term mean here ? Xiaobo Gu From: David Winsemius Date: 2012-01-19 21:46 To: guxiaobo1982 CC: r-help; ds5j Subject: Re: [R] What does the : operator mean in glm formulas On Jan 19, 2012, at 8:02 AM, Xiaobo Gu wrote: > Hi, > > I see the following is the credit scoreing in R guide : > > m2<-glm(formula = good_bad ~ checking + duration + history+ purpose > +amount + savings + employed + installp + marital + > coapp +age + other + depends + telephon + foreign +checking:amount > > What does checking:amount mean? ?formula -- David Winsemius, MD West Hartford, CT ______________________________________________ [email protected] 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.
