Re: [R] special question on regression

2011-07-18 Thread Greg Snow
I remember seeing an example using the EM algorithm where one of the variables was age of child and they assumed that an age like 16 months was accurate to the month, but ages like 18 months may have been off by as much as 2 months and ages like 3 years could be off by 6 months (or more), so the

Re: [R] special question on regression

2011-07-17 Thread Johannes Radinger
Hello, @Bert: I didn't expect a full tutorial service but probably a hint of the Masters of statistics ;) Anyway I posted my question again on a special statistic forum. Your hint about the censored regression: I don't think that this is the case here. As so far as I understand it is there the d

Re: [R] special question on regression

2011-07-17 Thread Uwe Ligges
- Please also reply to the original poster who may not be subscribed to the list. - Please cite the original question (and other relevant parts of the thread) since some readers of this list will delete messages before an answer arrives. Uwe Ligges On 17.07.2011 15:22, saskay wrote: You cou

Re: [R] special question on regression

2011-07-17 Thread saskay
You could treat the dependent variable as a nominal variable. And scale the indepent variables to have a Mean:0 and StDev:1. Stick all these in a multinomial regression package such as mlogit. Or a non -parametric method such as randomForest. -- View this message in context: http://r.789695.n4.n

Re: [R] special question on regression

2011-07-17 Thread Bert Gunter
Johannes: R is not a statistical tutorial service, although kind and able helpeRs sometimes do reply to such queries. You should try such a service, for example: http://stackoverflow.com/ FWIW, this is an example of censoring in regression. R has packages for this, but you need to learn more or