Applying function to only numeric variable (plyr package?)

Wed, Oct 12, 2011 6:45 AM

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Michael.Laviolette at dhhs.state.nh.us Applying function to only numeric variable (plyr package?) Oct 12 Christoph Molnar Applying function to only numeric variable (plyr package?) Oct 12 Jan van der Laan Applying function to only numeric variable (plyr package?) Oct 12 Dennis Murphy Applying function to only numeric variable (plyr package?) Oct 12