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.
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.
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?
?formulaHi,
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?
--
David Winsemius, MD
West Hartford, CT
