search for: furnival

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2010 Oct 06
1
Does R have function/package works similar to SAS's 'PROC REG'?
...the crossproducts are solved by using a sweep algorithm (Goodnight 1979). The method is accurate for data that are reasonably scaled and not too collinear. The sweep algorithm is also used in many places in the model-selection methods and the RSQUARE method uses the leaps-and-bounds algorithm by Furnival and Wilson (1974). Thanks. Thanks. CZ -- View this message in context: http://r.789695.n4.nabble.com/Does-R-have-function-package-works-similar-to-SAS-s-PROC-REG-tp2965657p2965657.html Sent from the R help mailing list archive at Nabble.com.
2006 Jun 12
0
New version of Subselect package
Version 0.9-99 of package "subselect" is now on CRAN. The subselect package has functions that search for k-variable subsets of a p-variable (p>k) data set that are optimal under some criterion. Search algorithms include a full search algorithm "leaps", based on Furnival and Wilson's leaps and bounds algorithm, and three random search algorithms: a genetic algorithm ("genetic"), a simulated annealing algorithm ("anneal") and a modified local search algorithm ("improve"). Previous versions of subselect had three criteria for optimal...
2006 Jun 12
0
New version of Subselect package
Version 0.9-99 of package "subselect" is now on CRAN. The subselect package has functions that search for k-variable subsets of a p-variable (p>k) data set that are optimal under some criterion. Search algorithms include a full search algorithm "leaps", based on Furnival and Wilson's leaps and bounds algorithm, and three random search algorithms: a genetic algorithm ("genetic"), a simulated annealing algorithm ("anneal") and a modified local search algorithm ("improve"). Previous versions of subselect had three criteria for optimal...
2004 Mar 11
0
Subselect package - Version 0.7.1
...hich are optimal under various criteria. As of version 0.7 a new function 'leaps' has been added. 'Leaps' performs a branch and bound search for the best variable subsets, according to a specified criterion. 'Leaps' implements Duarte Silva's adaptation (Reference 3) of Furnival and Wilson's Leaps and Bounds Algorithm for variable selection in Regression Analysis. It is viable in identifying optimal subsets for data sets with a moderate number (up to about 30-35) of variables, and very fast for small data sets (up to about 20-25 variables). In package subselect, the q...
2004 Mar 11
0
Subselect package - Version 0.7.1
...hich are optimal under various criteria. As of version 0.7 a new function 'leaps' has been added. 'Leaps' performs a branch and bound search for the best variable subsets, according to a specified criterion. 'Leaps' implements Duarte Silva's adaptation (Reference 3) of Furnival and Wilson's Leaps and Bounds Algorithm for variable selection in Regression Analysis. It is viable in identifying optimal subsets for data sets with a moderate number (up to about 30-35) of variables, and very fast for small data sets (up to about 20-25 variables). In package subselect, the q...