Advanced and Fast Data Transformation
Description
A C/C++ based package for advanced data transformation in R that is
extremely fast, flexible and parsimonious to code with and programmer
friendly. It is well integrated with 'dplyr', 'plm' and 'data.table'.
--- Key Features: ---
(1) Advanced data programming: A full set of fast statistical functions
supporting grouped and/or weighted computations on vectors, matrices
and data.frames. Fast (ordered) and reusable grouping, quick data
conversions, and quick select, replace or add data.frame columns.
(2) Advanced aggregation: Fast and easy multi-data-type, multi-function,
weighted, parallelized and fully customized data aggregation.
(3) Advanced transformations: Fast (grouped, weighted) replacing and
sweeping out of statistics, scaling, centering, higher-dimensional
centering, complex linear prediction and partialling-out.
(4) Advanced time-computations: Fast (sequences of) lags / leads, and
(lagged / leaded, iterated) differences and growth rates on (unordered)
time-series and panel data. Multivariate auto, partial and cross-
correlation functions for panel data. Panel data to (ts-)array conversions.
(5) List Processing: (Recursive) list search / identification, extraction /
subsetting, data-apply, and row-binding / unlisting in 2D.
(6) Advanced data exploration: Fast (grouped, weighted, panel-decomposed)
summary statistics for complex multilevel / panel data.