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 utilities
Miscellaneous datasets

Author: Søren Højsgaard, Ulrich Halekoh

Online documentation

https://hojsgaard.github.io/doBy

Development site

https://github.com/hojsgaard/doBy

CRAN page:

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

Further info at:

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

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Version

Install

install.packages('doBy')

Monthly Downloads

335,213

Version

4.6.26

License

GPL (>= 2)

Issues

Pull Requests

Stars

Forks

Repository

https://github.com/hojsgaard/doBy

Maintainer

Søren Højsgaard

Last Published

April 9th, 2025

Functions in doBy (4.6.26)

Function to make groupwise transformations

Split a data frame

Sampling from a data frame

Berkeley Growth Study data

Yield from Danish agricultural production of grain and root crop.

Cross-validation for list of glm objects

data_breastcancer

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

Convert right hand sided formula to a list

Convert expression into function object.

Fish oil in pig food

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

Function to calculate groupwise summary statistics

Contrasts for lm, glm, lme, and geeglm objects

interaction-plot

Two-way interaction plot

Computing simple descriptive statistics of a numeric vector.

data_personality

Personality traits

Compute linear estimates

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

Linear estimates matrix

Mathematics marks for students

Coronary artery disease data

Determines if contrasts are estimable.

Reciprocal function

Auxillary functions for computing lsmeans, contrasts etc

Recode values of a vector

Prostate Tumor Gene Expression Dataset

Chemical composition of wine

parseGroupFormula

Extract components from a formula with "conditioning bar"

Fast summary of microbenchmark object

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

Plot linear model object

split_byrow_bycol

Split matrix or dataframe into list

Get formulas from model_stability_glm_class object

Locate the index of the first/last unique value

Forced expiratory volume in children

Weight and size of 20 potatoes

Find sub-sequences of identical elements in a vector.

Get response variable from model

recover_pca_data

Recover data from principal component analysis

Heat development in cement under hardening.

Rename columns in a matrix or a dataframe.

Milk yield data for manually milked cows.

model_stability_glm

Model stability for glm objects

Scaling numerical values

Growth curves of pigs in a 3x3 factorial experiment

Formula operations and coercion.

Section a function and set default values in function

Tidy an esticon object

Taylor expansion (one dimension)

Internal functions for the doBy package

generate_data_list

Generate data list

Truncate values in a matrix / vector to zero if they are below a certain threshold.

set_list_set_matrix

Matrix representatation of list of vectors and vice versa

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

Tidy a linest object

Plot the response variable against the predictor variables.

Calculate "time since event" in a vector.

List of lm objects with a common model

binomial_to_bernoulli_data

Convert binomial data to bernoulli data

Add predicted values of different types to dataframe

bquote_fun_list

Backquote a list of functions

Add interaction columns to data frame

Add residuals of different types to dataframe

Formula based version of lapply and sapply

Ordering (sorting) rows of a data frame

Lean meat contents of 344 pig carcasses

Scale a dataframe or matrix