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bartels
2012 Jun 08
1
Fwd: How to best analyze dataset with zero-inflated loglinear dependent variable?
...sting this question. I am sure R-Help is not a
research methods discussion list, but we have many statisticians in
the list and I would like to hear from them. Any function/package in R
would be able to deal with the problem from this researcher?
---------- Forwarded message ----------
From: Heidi Bertels
Date: Tue, Jun 5, 2012 at 4:31 PM
Subject: How to best analyze dataset with zero-inflated loglinear
dependent variable?
To: RMNET <rmnet at listserv.unc.edu>
Dear colleagues,
I have what I think is an interesting dataset, but I have never
analyzed anything alike. As background: over a 12...
2008 Mar 11
1
NAs introduced by coercion
Hallo,
i get a warning message that NAs are introduced by coercion,
so my idea is to write a function to see which values are turned into
NA
For this i need to write a function to go through (loop) the original
data and the transformed (with the introduced na) to see which data were
transformed to NA.
So the return of this function should be a 2*many matrix like structure,
eg
names:
2008 Jun 05
1
(baseline) logistic regression + gof functions?
?
Hallo,
which function can i use to do (baseline) logistic regression +
goodness
of fit tests?
so far i found:
# logistic on binary data
lrm combined with resid(model,'gof')
# logistic on binary data
glm with no gof-test
# baseline logit on binary data
2008 Jul 30
1
odds ratios in multiway tables (stratified)
Hi,
does anyone know of a function to calculate odds ratios in multiway
tables (stratified) (+ the other usual statistics involved)
i mean:
say we have a table r*c*d,
For every d (depth) we have a r*c table,
and in this table the odds ratio's are calculated for every 2*2 subtable
in it.
logically this function would look like):
ORs(multiwaytable)
or
ORs(data$var1r,data$var2c,data$var3d)