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

356,484

Version

4.6-3

License

GPL (>= 2)

Maintainer

Søren Højsgaard

Last Published

October 23rd, 2019

Functions in doBy (4.6-3)

Lean meat contents of 344 pig carcasses

Growth curves of pigs in a 3x3 factorial experiment

Fish oil in pig food

Contrasts for lm, glm, lme, and geeglm objects

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

Locate the index of the first/last unique value

Forced expiratory volume in children

data-haldCement

Heat development in cement under hardening.

Milk yield data for manually milked cows.

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

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

Find sub-sequences of identical elements in a vector.

Auxillary functions for computing lsmeans, contrasts etc

Determines if contrasts are estimable.

data-breastcancer

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

Rename columns in a matrix or a dataframe.

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

Finds the basis of the (right) null space.

Linear estimates matrix

Taylor expansion (one dimension)

Weight and size of 20 potatoes

Compute linear estimates

Calculate "time since event" in a vector.

Internal functions for the doBy package

parseGroupFormula

Extract components from a formula with "conditioning bar"

Computing simple descriptive statistics of a numeric vector.

Recode values of a vector

Convert right hand sided formula to a list

List of lm objects with a common model

Function to make groupwise transformations

Sampling from a data frame

Split a data frame

Function to calculate groupwise summary statistics

Ordering (sorting) rows of a data frame

Formula based version of lapply.