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

360,908

Version

4.6.16

License

GPL (>= 2)

Maintainer

Søren Højsgaard

Last Published

January 18th, 2023

Functions in doBy (4.6.16)

Function to calculate groupwise summary statistics

Function to make groupwise transformations

Mathematics marks for students

Yield from Danish agricultural production of grain and root crop.

Scale a dataframe or matrix

Prostate Tumor Gene Expression Dataset

Lean meat contents of 344 pig carcasses

data-personality

Personality traits

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

Convert right hand sided formula to a list

Coronary artery disease data

Contrasts for lm, glm, lme, and geeglm objects

Computing simple descriptive statistics of a numeric vector.

Convert expression into function object.

Fast summary of microbenchmark object

Growth curves of pigs in a 3x3 factorial experiment

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

Internal functions for the doBy package

Fish oil in pig food

Section a function and set default values in function

Linear estimates matrix

Compute linear estimates

interaction-plot

Two-way interaction plot

Rename columns in a matrix or a dataframe.

Forced expiratory volume in children

Heat development in cement under hardening.

split_byrow_bycol

Split matrix or dataframe into list

Auxillary functions for computing lsmeans, contrasts etc

Taylor expansion (one dimension)

Calculate "time since event" in a vector.

recover_pca_data

Recover data from principal component analysis

Tidy a linest object

Tidy an esticon object

Milk yield data for manually milked cows.

Locate the index of the first/last unique value

Recode values of a vector

Finds the basis of the (right) null space.

Determines if contrasts are estimable.

Find sub-sequences of identical elements in a vector.

parseGroupFormula

Extract components from a formula with "conditioning bar"

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

Weight and size of 20 potatoes

Scale a dataframe or matrix

bquote_fun_list

Backquote a list of functions

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

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

Sampling from a data frame

List of lm objects with a common model

Ordering (sorting) rows of a data frame

Formula based version of lapply and sapply

Split a data frame