Displaying 4 results from an estimated 4 matches for "orelien".
2004 Dec 22
2
GAM: Getting standard errors from the parametric terms in a GAM model
...et standard errors
and p-values for the parametric terms (I fitted a semi-parametric models).
Using the function anova() on the object from GAM, I only get p-values for
the nonparametric terms.
Does anyone know if and how to get standard errors for the parametric terms?
Thanks.
Jean G. Orelien
2004 Dec 22
2
GAM: Overfitting
I am analyzing particulate matter data (PM10) on a small data set (147
observations). I fitted a semi-parametric model and am worried about
overfitting. How can one check for model fit in GAM?
Jean G. Orelien
2007 Apr 04
3
Power analysis and mixed model
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Url : https://stat.ethz.ch/pipermail/r-help/attachments/20070404/0f61f54a/attachment.pl
2005 Jan 13
2
GAM: Remedial measures
I fitted a GAM model with Poisson distribution to a data with about 200
observations. I noticed that the plot of the residuals versus fitted values
show a trend. Residuals tend to be lower for higher fitted values. Because,
I'm dealing with count data, I'm thinking that this might be due to
overdispersion. Is there a way to account for overdispersion in any of the
packages MGCV or GAM?