[R] marketing-questionnaire with split-design

Jim Lemon jim at bitwrit.com.au
Thu Sep 11 13:07:44 CEST 2014


On Thu, 11 Sep 2014 08:58:54 PM Jim Lemon wrote:

Sorry, copying fumble. The last line in the loop should read:

sum(nddf[subject,seq(2,10,by=2)]))

Jim



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