Other packages > Find by keyword >

xegaDerivationTrees  

Generating and Manipulating Derivation Trees
View on CRAN: Click here


Download and install xegaDerivationTrees package within the R console
Install from CRAN:
install.packages("xegaDerivationTrees")

Install from Github:
library("remotes")
install_github("cran/xegaDerivationTrees")

Install by package version:
library("remotes")
install_version("xegaDerivationTrees", "1.0.0.6")



Attach the package and use:
library("xegaDerivationTrees")
Maintained by
Andreas Geyer-Schulz
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2024-02-13
Latest Update: 2025-04-16
Description:
Derivation tree operations are needed for implementing grammar-based genetic programming and grammatical evolution: Generating of a random derivation trees of a context-free grammar of bounded depth, decoding a derivation tree, choosing a random node in a derivation tree, extracting a tree whose root is a specified node, and inserting a subtree into a derivation tree at a specified node. These operations are necessary for the initializiation and for decoders of a random population of programs, as well as for implementing crossover and mutation operators. Depth-bounds are guaranteed by switching to a grammar without recursive production rules. For executing the examples, the package 'BNF' is needed. The basic tree operations of generating, extracting, and inserting of derivation trees as well as the conditions for guaranteeing complete derivation trees have been presented in Geyer-Schulz (1997, ISBN:978-3-7908-0830-X). The use of random integer vectors for the generation of derivation trees has been introduced in Ryan, C., Collins, J. J., andO'Neill, M. (1998) <doi:10.1007/BFb0055930>.
How to cite:
Andreas Geyer-Schulz (2024). xegaDerivationTrees: Generating and Manipulating Derivation Trees. R package version 1.0.0.6, https://cran.r-project.org/web/packages/xegaDerivationTrees. Accessed 10 Jun. 2026.
Previous versions and publish date:
1.0.0.0 (2024-02-13 17:50)
Other packages that cited xegaDerivationTrees R package
View xegaDerivationTrees citation profile
Other R packages that xegaDerivationTrees depends, imports, suggests or enhances
Complete documentation for xegaDerivationTrees
Functions, R codes and Examples using the xegaDerivationTrees R package
Full xegaDerivationTrees package functions and examples
Downloads during the last 30 days

Today's Hot Picks in Authors and Packages

mcompanion  
Objects and Methods for Multi-Companion Matrices
Provides a class for multi-companion matrices with methods for arithmetic and factorization. A m ...
Download / Learn more Package Citations See dependency  
hagis  
Analysis of Plant Pathogen Pathotype Complexities, Distributions and Diversity
Analysis of plant pathogen pathotype survey data. Functions provided calculate distribution of sus ...
Download / Learn more Package Citations See dependency  
seeclickfixr  
Access Data from the SeeClickFix Web API
Provides a wrapper to access data from the SeeClickFix web API for R. SeeClickFix is a central plat ...
Download / Learn more Package Citations See dependency  
mixtox  
Dose Response Curve Fitting and Mixture Toxicity Assessment
Curve Fitting of monotonic(sigmoidal) & non-monotonic(J-shaped) dose-response data. Predicting mixt ...
Download / Learn more Package Citations See dependency  
r2resize  
In-Text Resize for Images, Tables and Fancy Resize Containers in 'shiny', 'rmarkdown' and 'quarto' Documents
Automatic resizing toolbar for containers, images and tables. Various resizable or expandable contai ...
Download / Learn more Package Citations See dependency  
cmvnorm  
The Complex Multivariate Gaussian Distribution
Various utilities for the complex multivariate Gaussian distribution and complex Gaussian processes. ...
Download / Learn more Package Citations See dependency  

27,372

R Packages

233,548

Dependencies

72,820

Author Associations

27,205

Publication Badges

© Copyright since 2022. All right reserved, rpkg.net.  Based in Cambridge, Massachusetts, USA