Displaying 9 results from an estimated 9 matches similar to: "Nagelkerkes R2N"
2009 Jul 15
0
Nagelkerkes R2N
I am interested Andrea is whether you ever established why your R2 was 1.
I have had a similar situation previously.
My main issue though, which I'd be v grateful for advice on, is why I am obtaining such negative values -0.3 for Somers Dxy using validate.cph from the Design package given my value of Nagelkerke R2 is not so low 13.2%.
I have this output when fitting 6 variables all with
2008 Oct 22
0
Calculate individual R2n values
Does anyone know an alternate way of calculating R2n with spatial data other
than converting values into ltraj format (adehabitat package)?
I have a series of geographic xy coordinates (in metres). I imagine I can
subtract x1y1 from x2y2 to get the spatial difference (dxdy), but what
function can I use to calculate R2n (i.e. net squared displacement) using
this information?
Tyler
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2009 Nov 22
0
Adding columns to lower level of list
Dear List,
I have very little experience with lists and am having some very basic problems. I don't know how to add columns to the lower levels of a list, or how to take something from the upper level and add it as a column to the lower level. I am analyzing animal movement data in the package Adehabitat. I have a list of animal movements called "cut.ltr" (class ltraj) that have
2012 Mar 05
1
Nagelkerke R2
Dear R community.
I´m working with a generalized linear model which the response variable is
a categorical one and the predictive variables are weather conditions. I
have 250 different places where I need to fit the model. In some of these
places I have strong correlations between some of the variables so I need
to deal with this problem.
I found a work similar than mine where they use tha
2010 Dec 27
0
Nagelkerke R square for Prediction data
Hello
I found some small postings dated to 22 Oct 2008 on the message subject. Recently, I have been working with binary logistic regressions. I didn't use the design package. Yet, I needed the "fit" indices. Therefore, I wrote a small function to output the Nagelkerke's R, and the Cox-&-Snell R from a fitted model. I am no professional programmer by far, yet, I hope, that
2011 Apr 12
0
cross-validation complex model AUC Nagelkerke R squared code
Hi there,
I really tried hard to understand and find my own solution, but now I
think I have to ask for your help.
I already developed some script code for my problem but I doubt that it
is correct.
I have the following problem:
Image you develop a logistic regression model with a binary outcome Y
(0/1) with possible preditors (X1,X2,X3......). The development of the
final model would be
2011 Apr 11
1
pseudo-R by hand
hello dear list! since we want to do a model analysis and some people
would like to see pseudo-R^2 values for different types of glm of a
logistic regression, i've decided to write a function that computes
either nagelkerkes normed pseudo-R or cox & snells pseudo-R. however, i
am not clear as in the decisive step, i need to calculate the log of
(maximum likelihood estimates of model
2008 Apr 09
2
problem with basic boolean selection in sequence
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Nom : non disponible
Url : https://stat.ethz.ch/pipermail/r-help/attachments/20080409/28fc5778/attachment.pl
2009 Jul 23
1
[PATCH server] changes required for fedora rawhide inclusion.
Signed-off-by: Scott Seago <sseago at redhat.com>
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AUTHORS | 17 ++++++
README | 10 +++
conf/ovirt-agent | 12 ++++
conf/ovirt-db-omatic | 12 ++++
conf/ovirt-host-browser | 12 ++++