Displaying 2 results from an estimated 2 matches for "faminc".
Did you mean:
famine
2005 May 20
4
issues with identical()
...er, these data frames are Nx2 and when I issue:
> identical(temp[,2], temp1[,2])
[1] TRUE
> identical(temp[,1], temp1[,1])
[1] TRUE
and the results from str
> str(temp)
`data.frame': 7072 obs. of 2 variables:
$ pub_id : int 10000 1000 10001 10002 10003 10004 10005 10006 10007
$ faminc90: int -2 5998 19900 43000 35000 40000 56538 61000 36000 39105
> str(temp1)
`data.frame': 7072 obs. of 2 variables:
$ pub_id: int 10000 1000 10001 10002 10003 10004 10005 10006 10007 10008
$ faminc: int -2 5998 19900 43000 35000 40000 56538 61000 36000 39105
The question is why are th...
2007 Apr 10
1
When to use quasipoisson instead of poisson family
It seems that MASS suggest to judge on the basis of
sum(residuals(mode,type="pearson"))/df.residual(mode). My question: Is
there any rule of thumb of the cutpoiont value?
The paper "On the Use of Corrections for Overdispersion" suggests
overdispersion exists if the deviance is at least twice the number of
degrees of freedom.
Are there any further hints? Thanks.
--
Ronggui