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Reading: Package Update Roundup: Mar 2009
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SmartData Collective > Big Data > Data Mining > Package Update Roundup: Mar 2009
Data MiningPredictive Analytics

Package Update Roundup: Mar 2009

DavidMSmith
Last updated: 2009/03/31 at 3:22 PM
DavidMSmith
2 Min Read
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This is a list of significant new or updated packages that were released on CRAN this month. For a complete list of all updates, see the CRANberries archive for March 2009.

WriteXLS is a new package (a single function, actually) that writes one or more data frames to an Excel (XLS) file.

mgcv, a package for estimating Generalized Additive Models with multiple smoothing parameter selection methods, has been updated to add REML and ML smoothing selection, and the Tweedie family of distributions. 

ltm, a package for Item Response Theory analysis, has been updated to implement the Generalized Partial Credit model, amongst other new features.

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data.table, an enhanced version of data.frame with database-like selections and joins, has been available as a package on CRAN for some time but was only recently announced.

…

This is a list of significant new or updated packages that were released on CRAN this month. For a complete list of all updates, see the CRANberries archive for March 2009.

WriteXLS is a new package (a single function, actually) that writes one or more data frames to an Excel (XLS) file.

mgcv, a package for estimating Generalized Additive Models with multiple smoothing parameter selection methods, has been updated to add REML and ML smoothing selection, and the Tweedie family of distributions. 

ltm, a package for Item Response Theory analysis, has been updated to implement the Generalized Partial Credit model, amongst other new features.

data.table, an enhanced version of data.frame with database-like selections and joins, has been available as a package on CRAN for some time but was only recently announced.

TAGGED: r
DavidMSmith March 31, 2009
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