doBy package - RDocumentation

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doBy

Groupwise Statistics, LSmeans, Linear Contrasts, Utilities

Facilities for working with grouped data: 'do' something to data stratified 'by' some variables.
LSmeans (least-squares means), general linear contrasts.
Miscellaneous other utilities

Author: Søren Højsgaard, Ulrich Halekoh

CRAN page:

https://cran.r-project.org/web/packages/doBy/index.html

Further info at:

http://people.math.aau.dk/~sorenh/software/doBy/

https://github.com/hojsgaard/doBy

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Version

Install

install.packages('doBy')

Monthly Downloads

309,411

Version

4.6.13

License

GPL (>= 2)

Maintainer

Søren Højsgaard

Last Published

May 2nd, 2022

Functions in doBy (4.6.13)

Ordering (sorting) rows of a data frame

Split a data frame

Finds subsets of a dataframe which is split by variables in a formula.

List of lm objects with a common model

Formula based version of lapply and sapply

Gene expression signatures for p53 mutation status in 250 breast cancer samples

Sampling from a data frame

Yield from Danish agricultural production of grain and root crop.

Function to make groupwise transformations

Growth curves of pigs in a 3x3 factorial experiment

Computing simple descriptive statistics of a numeric vector.

Function to calculate groupwise summary statistics

Lean meat contents of 344 pig carcasses

Diet of Atlantic cod in the Gulf of St. Lawrence (Canada)

Mathematics marks for students

Coronary artery disease data

Determines if contrasts are estimable.

Locate the index of the first/last unique value

Forced expiratory volume in children

Auxillary functions for computing lsmeans, contrasts etc

Fish oil in pig food

Contrasts for lm, glm, lme, and geeglm objects

Internal functions for the doBy package

Convert right hand sided formula to a list

interaction-plot

Two-way interaction plot

Heat development in cement under hardening.

Milk yield data for manually milked cows.

Finds the basis of the (right) null space.

Calculate "time since event" in a vector.

Tidy a linest object

Taylor expansion (one dimension)

Tidy an esticon object

Linear estimates matrix

Compute linear estimates

Fast summary of microbenchmark object

Compute LS-means (aka population means or marginal means)

parseGroupFormula

Extract components from a formula with "conditioning bar"

Weight and size of 20 potatoes

Rename columns in a matrix or a dataframe.

Where are the n largest or n smallest elements in a numeric vector ?

Recode values of a vector

Find sub-sequences of identical elements in a vector.