search for: peyuco

Displaying 4 results from an estimated 4 matches for "peyuco".

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2004 Aug 15
3
calibration/validation sets
Hi; Does anyone know how to create a calibration and validation set from a particular dataset? I have a dataframe with nearly 20,000 rows! and I would like to select (randomly) a subset from the original dataset (...I found how to do that) to use as calibration set. However, I don't know how to remove this "calibration" set from the original dataframe in order to get my
2005 Feb 28
1
formatting output
...is not a dataframe and I can't coarce it to this format. Is it possible to get the results of this function as a dataframe? I know that I'm probably missing some important concepts here but Im not very good in programming. Any hint will be appreciated Regards Peyuco
2004 Aug 17
2
Re: Thanks Frank, setting graph parameters, and why social scientists don't use R
...6. how to draw two graphs in one graph window (Chuanjun Zhang) > 17. Rserve needs (but cannot find) libR.a (or maybe it's .so) > (Paul Shannon) > 18. Re: Rserve needs (but cannot find) libR.a (or maybe it's .so) > (A.J. Rossini) > 19. calibration/validation sets (Peyuco Porras Porras .) > 20. RE: calibration/validation sets (Austin, Matt) > 21. Re: calibration/validation sets (Kevin Wang) > 22. RE: calibration/validation sets (Liaw, Andy) > 23. Dirichlet-Multinomial (Z P) > 24. Re: how to draw two graphs in one graph window > (Adaikalav...
2005 Oct 12
0
Model parameterization / Factor Levels
Dear R users; I'm looking for some hint about how to deal with the following situation: Response = Y Factor A = levels: 0, 1 Factor B = levels: 0, 1 Factor C = levels: 1,2,3,4 Model: Logistic 3-parms. where th1~1+A+C, th2~1+C; th3~1 For 'simplicity' (for me) I'm using the SAS contrast parameterization. The output looks like Beta p-value th1.(Intercept) 550