[R] Unable to fit model using “lrm.fit”

[Mitchell Maltenfort]

When I have problems like that I try the same fit using 'glm' and see
what I get.


On Sun, May 27, 2012 at 1:53 PM, irena <irena.begaj at gmail.com> wrote:
> Hi,
>
> I am running a logistic regression model using lrm library and I get the
> following error when I run the command:
>
> mod1 <- lrm(death ~ factor(score), x=T, y=T, data = env1)
> Unable to fit model using “lrm.fit”
>
> where score is a numeric variable from 0 to 6.
>
> LRM executes fine for the following commands:
> mod1 <- lrm(death ~ score, x=T, y=T, data = env1)
>
> mod1<- lrm(death ~      factor(score)+
>                       factor(var1)+factor(var2)+factor(var3)+
>                       factor(var4)+factor(var5)+factor(var6)+
>                       factor(var7), x=T, y=T, data = env1)
>
> I do not understand why I get the error. I have tried to use glm and it
> works perfectly fine.
>
>
>
> --
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