Reshape 0.7 =================== Reshape is an R package for flexibly restructuring and aggregating data. It is inspired by Excel's pivot tables, and it makes it very easy to view your data the way you want. The reshape package (along with ggplot) received the John Chambers Award for Statistical Computing. You can find out more at http://had.co.nz/reshape.
Reshape (hopefully) makes it easy to do what you have been struggling to do with tapply, by, aggregate, xtabs, apply and summarise. It is also useful for getting your data into the correct structure for lattice or ggplot plots. This new version of reshape substantially expands the type of output you can cast into. You can now make nested lists, cast(m, a ~ b | c) or cast(m, a ~ b | c + d), and multidimensional arrays, cast(m, a ~ b ~ c) (or any combination of the two). See the examples in ?cast. What else is new?: * iapply, an idempotent apply function that returns results with the same dimensionality as the input (very useful in conjunction with sweep and multidimensional arrays) * rescaler, a function to rescale data.frames variable by variable using a range of different scaling methods * combine_factor and reorder_factor to make it easier to combine and reorder factor levels * bug fixes! All feedback is welcomed, and if you are struggling with reshaping your data and the reshape package isn't helping, please let me know. Regards, Hadley http://had.co.nz/ _______________________________________________ R-packages mailing list [EMAIL PROTECTED] https://stat.ethz.ch/mailman/listinfo/r-packages ______________________________________________ R-help@stat.math.ethz.ch mailing list 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.