search for: witjh

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2008 Dec 24
0
Friday Dec 26th : VUC about Skype for Asterisk
...eve Sokol, who's in charge of the beta for this module at Digium, has courageously agreed to give us a report on how it's coming along. Spread this URL around on your social network : http://tr.im/voip and remember all the information about the VUC is at http://www.VoipUsersConference.org witjh IRC back chat at #voip-users-conference on Freenode.net. I've been a part of the asterisk community for several years and I want to reiterate how much this means to me each passing year. I've had a chance to meet many of you in person, especially Digium people, but many others as well. We...
2011 Sep 15
1
p-value for non linear model
Hello, I want to understand how to tell if a model is significant. For example I have vectX1 and vectY1. I seek first what model is best suited for my vectors and then I want to know if my result is significant. I'am doing like this: model1 <- lm(vectY1 ~ vectX1, data= d), model2 <- nls(vectY1 ~ a*(1-exp(-vectX1/b)) + c, data= d, start = list(a=1, b=3, c=0)) aic1 <- AIC(model1)
2006 Nov 09
2
Meta-regression with lmer() ? If so, how ?
Dear List, I am (again) looking at meta-regression as a way to refine meta-analytic results. What I want to do is to assess the impact of some fixed factors on the results of a meta-analysis. Some of them may be crossed with the main factor of the meta-analysis (e. g. clinical presentation of a disease, defining subgroups in each of the studies under analysis), some of them may be a grouping