Learn R Programming

⚠️There's a newer version (2.1.1) of this package.Take me there.

collapse (version 1.0.0)

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.

Copy Link

Version

Install

install.packages('collapse')

Monthly Downloads

40,634

Version

1.0.0

License

GPL (>= 2)

Maintainer

Sebastian Krantz

Last Published

March 19th, 2020

Functions in collapse (1.0.0)

A2-fast-grouping

Fast Grouping / collapse Grouping Objects

fbetween-fwithin-B-W

Fast Between (Averaging) and Within (Centering) Transformations

A3-select-replace-vars

Quick Select and Replace Data Frame Columns

fHDbetween-fHDwithin-HDB-HDW

Higher-Dimensional Centering and Linear Prediction

fdiff-fgrowth-D-G

Fast Differences and Growth Rates for Time-Series and Panel Data

Fast (Grouped) Maxima and Minima for Matrix-Like Objects

Fast (Grouped) Distinct Value Count for Matrix-Like Objects

Fast (Grouped, Weighted) Statistical Mode for Matrix-Like Objects

Fast (Grouped, Weighted) Mean for Matrix-Like Objects

AA2-small-helpers

collapse Small (Helper) Functions

A8-list-processing

collapse List Processing

Auto- and Cross- Covariance and -Correlation Function Estimation for Panel-Series

Fast (Grouped) Median Value for Matrix-Like Objects

Split-Apply-Combine Computing

Fast (Grouped) Observation Count for Matrix-Like Objects

Groningen Growth and Development Centre 10-Sector Database

Fast (Grouped) First and Last Value for Matrix-Like Objects

Fast F-test of Linear Models (with Factors)

Detailed Statistical Description of Data Frame

Find and Extract / Subset List Elements

Fast (Grouped, Weighted) Scaling and Centering of Matrix-like Objects

A0-collapse-documentation

Collapse Documentation & Overview

A5-advanced-aggregation

Advanced Data Aggregation

Fast (Grouped, Weighted) Summary Statistics for Cross-Sectional and Panel-Data

A6-data-transformations

collapse Data Transformations

Fast Lags and Leads for Time-Series and Panel Data

Fast (Grouped) Sum for Matrix-Like Objects

AA1-recode-replace

Recode and Replace Values in Matrix-Like Objects

Recursively Apply a Function to a List of Data Objects

A1-fast-statistical-functions

Fast (Grouped, Weighted) Statistical Functions for Matrix-Like Objects

Fast (Grouped, Weighted) Variance and Standard Deviation for Matrix-Like Objects

Fast (Grouped) Product for Matrix-Like Objects

pwcor, pwcov, pwNobs

Pairwise Correlations, Covariances and Observation Count

Determine the Depth / Level of Nesting of a List

is.regular-is.unlistable

Regular Objects and Unlistable Lists

World Bank Development Data

A9-summary-statistics

collapse Summary Statistics

Recursive Row-Binding / Unlisting in 2D - to Data Frame

A4-quick-conversion

Quick Data Conversion

A7-time-series-panel-series

collapse Time-Series and Panel-Series

Matrix / Array from Panel-Series

collapse-package

Advanced and Fast Data Transformation

Transform Data by (Groupwise) Replacing or Sweeping out Statistics