search for: vaggregate

...0.020 0.011 1.038 This work has been generously supported by BD (Becton Dickinson). MINOR CHANGES * a*ply and m*ply gain an .expand argument that controls whether data frames produce a single output dimension (one element for each row), or an output dimension for each variable. * new vaggregate (vector aggregate) function, which is equivalent to tapply, but much faster (~ 10x), since it avoids copying the data. * llply: for simple lists and vectors, with no progress bar, no extra info, and no parallelisation, llply calls lapply directly to avoid all the overhead associated with tho...

...0.020 0.011 1.038 This work has been generously supported by BD (Becton Dickinson). MINOR CHANGES * a*ply and m*ply gain an .expand argument that controls whether data frames produce a single output dimension (one element for each row), or an output dimension for each variable. * new vaggregate (vector aggregate) function, which is equivalent to tapply, but much faster (~ 10x), since it avoids copying the data. * llply: for simple lists and vectors, with no progress bar, no extra info, and no parallelisation, llply calls lapply directly to avoid all the overhead associated with tho...

...es missing factor levels * `split_labels` correctly preserves empty factor levels, which means that `drop = FALSE` should work in more places. Use `base::droplevels` to remove levels that don't occur in the data, and `drop = T` to remove combinations of levels that don't occur. * `vaggregate` now passes `...` to the aggregation function when working out the output type (thanks to bug report by Pavan Racherla) -- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice University http://had.co.nz/ _______________________________________________ R-packages...

...es missing factor levels * `split_labels` correctly preserves empty factor levels, which means that `drop = FALSE` should work in more places. Use `base::droplevels` to remove levels that don't occur in the data, and `drop = T` to remove combinations of levels that don't occur. * `vaggregate` now passes `...` to the aggregation function when working out the output type (thanks to bug report by Pavan Racherla) -- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice University http://had.co.nz/ _______________________________________________ R-packages...

Hi, I used to use reshape and moved to reshape2 (R 2.15.1). Now I tried some of my older scripts and was surprised that my cast function wasn't working like before. What I did/want to do: 1) Melt a dataframe based on a vector specifying column names as measure.vars. Thats working so far: dfm <- melt(df, measure.vars=n, variable_name = "species", na.rm = FALSE) 2) Recast the