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2003 Jan 17
1
(no subject)
Dear R-help,
Why does the second grep reject when the first grep accepts?
Why does regexpr accept what grep rejects?
>eqtn
[1] "(1.2*A%*%B)/2"
>if(grep("A\\%\\*\\%B",eqtn)==1)erind<-1
>if(grep("A\\%\\*\\%A",eqtn)==1)erind<-1
Error in if (grep("A\\%\\*\\%A", eqtn) == 1) erind <- 1 :
missing value where logical needed
>if(regexpr("A\\%\\*\\%A",eq...
2016 Apr 26
0
survival::clogit, how to extract residuals for GOF assessment
Hi Folks,
Hopefully this question has enough R and not too much stats to be
appropriate for this list. Based on,* Hosmer et al. 2013. Logistic
regression for matched case-control studies. Applied Logistic
Regression *(eqtn.
7.8)*, *I am assessing GOF of conditional (or matched) logistic regression
models with the *standardized Pearson residuals*. The authors define
?large? as delta chi-squared values > 4.
For a 1:1 study, I can fit a conditional logistic model via an
unconditional routine by making the response v...