Package: RootsExtremaInflections 1.2.1

RootsExtremaInflections: Finds Roots, Extrema and Inflection Points of a Curve

Implementation of Taylor Regression Estimator (TRE), Tulip Extreme Finding Estimator (TEFE), Bell Extreme Finding Estimator (BEFE), Integration Extreme Finding Estimator (IEFE) and Integration Root Finding Estimator (IRFE) for roots, extrema and inflections of a curve . Christopoulos, DT (2019) <doi:10.13140/RG.2.2.17158.32324> . Christopoulos, DT (2016) <doi:10.2139/ssrn.3043076> . Christopoulos, DT (2016) <https://veltech.edu.in/wp-content/uploads/2016/04/Paper-04-2016.pdf> . Christopoulos, DT (2014) <arXiv:1206.5478v2 [math.NA]> .

Authors:Demetris T. Christopoulos

# Install 'RootsExtremaInflections' in R:

install.packages('RootsExtremaInflections', repos = c('https://dchristop.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/dchristop/rootsextremainflections/issues

Datasets:

xydat - Xydat

On CRAN:

2.70 score 8 scripts 165 downloads 12 exports 5 dependencies

Last updated 6 years agofrom:9b8de49d9d. Checks:3 OK, 6 NOTE. Indexed: yes.

Target	Result	Latest binary
Doc / Vignettes	OK	Mar 17 2025
R-4.5-win	NOTE	Mar 17 2025
R-4.5-mac	NOTE	Mar 17 2025
R-4.5-linux	NOTE	Mar 17 2025
R-4.4-win	NOTE	Mar 17 2025
R-4.4-mac	NOTE	Mar 17 2025
R-4.4-linux	NOTE	Mar 17 2025
R-4.3-win	OK	Mar 17 2025
R-4.3-mac	OK	Mar 17 2025

Exports:classify_curve extremexi findextreme findmaxbell findmaxtulip findroot inflexi rootexinf rootxi scan_curve scan_noisy_curve symextreme

Dependencies:codetools doParallel foreach inflection iterators

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Finds Roots, Extrema and Inflection Points of a Planar Curve	RootsExtremaInflections-package RootsExtremaInflections
Classifies a planar curve according to its convexity, symmetry and extreme type	classify_curve
Function to Find the Extreme Point of a Planar Curve	extremexi
Implementation of Integration Extreme Finding Estimator (IEFE) for extreme points identification	findextreme
Implementation of Bell Extreme Finding Estimator (BEFE) algorithm for a planar curve	findmaxbell
Implementation of Tulip Extreme Finding Estimator (TEFE) algorithm for a planar curve	findmaxtulip
Find the root for a planar curve byn using Integration Root Finding Estimator (IEFE) algorithm	findroot
Function to Find the Inflection Point of a Planar Curve	inflexi
Function to Find the Root, Extreme and Inflection of a Planar Curve	rootexinf
Function to Find the Root of a Planar Curve	rootxi
Finds roots, extrema and inflections for a planar not noisy curve	scan_curve
Finds roots, extrema and inflections for a planar noisy curve	scan_noisy_curve
A wrapper for using either Tulip Extreme Finding Estimator (TEFE) or Bell Extreme Finding Estimator (BEFE) algorithm for a symmetric extreme point	symextreme
xydat	xydat