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statar (version 0.1.3)

Tools inspired by Stata to manipulate tabular data

Description

statar makes it easier to work with tabular datasets. The package includes a set of functions to clean and summarize variables, to join datasets using an SQL-syntax, to manipulate datasets with a panel structure (elapsed dates, lead/lag, rolling functions, fill in missing values based on previous dates, add rows for missing dates). The package also includes functions to emulate Stata and Julia string and expression interpolation. statar is based on the data.table package and is inspired by Stata.

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Install

install.packages('statar')

Monthly Downloads

718

Version

0.1.3

License

GPL-2

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Repository

https://github.com/matthieugomez/statar

Maintainer

Matthieu Gomez

Last Published

January 8th, 2015

Functions in statar (0.1.3)

Winsorize a numeric vector

Version of mutate that (i) transforms data.table in place (ii) allows by, i condition

Demean a vector

Join two data.tables together

A package for applied research

Gives summary statistics (corresponds to Stata command summarize)

Apply rollling functions with respect to a time variable

Experimental function to graph a dataset

lead and lag with respect to a time variable

Version of mutate_each that (i) transforms data.table in place (ii) allows by, i condition (iii) when only when fun, creates new variables - except when replace = TRUE

Drop certain columns in place

Add rows corresponding to gaps in some variable

floor_date Round date-times down.

Statistical mode

Create unique names within a list, a data.frame, or an environment

Bin a numeric vector and return integer codes for the binning (corresponds to Stata command xtile)

String and expression interpolation

Creates a vector of zero except for one subscript

find_duplicates

returns duplicated rows

fill NA in place based on non missing observations

Keep only certain columns in place

Elapsed dates (monthly, quarterly)