ENmisc_1.0

ENmisc contains two utility function

mtapply is a hybrid of mapply and tapply. It evaluates summary function
for each cell of data defined by a fixed set of factor values.
The reason I wrote it was to be able to compute weighted means
(using wtd.mean from Hmisc) to groups of data defined by factors,
but it accepts any multivariate function as the function argument

wtd.boxplot does what the name makes you expect, it computes and draws
boxplots for weighted data. It behaves like boxplot, but accepts an
additional argument, weights.

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