Displaying 3 results from an estimated 3 matches for "matinv".
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mating
2011 Aug 16
2
generalized inverse using matinv (Design)
i am trying to use matinv from the Design package
to compute the generalized inverse of the normal equations
of a 3x3 design via the sweep operator.
That is, for the linear model
y = ? + x1 + x2 + x1*x2
where x1, x2 are 3-level factors and dummy coding is being used
the matrix to be inverted is
X'X =
9 3 3 3 3 3...
2013 Apr 19
2
NAMESPACE and imports
...otplot,bplot,calibrate,cph,catg,combineRelatedPredictors,confplot,contrast,coxphFit,cph,cr.setup,datadist,effective.df,fastbw,formatNP,gendata,gIndex,GiniMd,Glm,Gls,groupkm,Hazard,hazard.ratio.plot,histdensity,"%ia%",ie.setup,interactions.containing,legend.nomabbrev,lm.pfit,lrm,lrtest,lsp,matinv,matrx,Newlabels,Newlevels,nomogram,num.intercepts,ols,ols.influence,oos.loglik,pantext,Penalty.matrix,Penalty.setup,pentrace,perimeter,perlcode,plot.xmean.ordinaly,pol,pphsm,predab.resample,Predict,psm,rcs,related.predictors,reVector,robcov,Rq,sascode,scored,sensuc,setPb,show.influence,specs,strat,...
2010 Nov 29
2
R equivalent of Beaton's Sweep algorithm
I'm looking for an R equivalent of Beaton's (1964) Sweep algorithim for
partial inversion of a
matrix by pivoting.
It implemented in SAS/IML as sweep(matrix, indices), described here
http://support.sas.com/documentation/cdl/en/imlug/59656/HTML/default/langref_sect266.htm
and here for python
http://adorio-research.org/wordpress/?p=262
--
Michael Friendly Email: friendly AT yorku