Md, if this is what you are looking for: ---- https://en.wikipedia.org/wiki/Whipple%27s_index ----
then, the article says the algorithm is ---- The index score is obtained by summing the number of persons in the age range 23 and 62 inclusive, who report ages ending in 0 and 5, dividing that sum by the total population between ages 23 and 62 years inclusive, and multiplying the result by 5. Restated as a percentage, index scores range between 100 (no preference for ages ending in 0 and 5) and 500 (all people reporting ages ending in 0 and 5). ---- that seems fairly straight forward. if you are trying to learn R, and/or learn programming, i might suggest you *not* use a package, and rather work on coding up the calculation yourself. that would probably be a good, but not too hard, exercise, of some interest. enjoy! cheers, Greg ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
