check_curve()
checks a curve for its convexity typeuik()
finds the UIK estimation for elbow or knee point of a curved2uik()
performs UIK method on the approximation of second order
derivativesThe Unit Invariant Knee (UIK) estimator is described in article:
Install the inflection package and then read vignettes:
vignette('inflection', package ='inflection')
an introductory
vignettevignette('inflectionDevelopingMethods', package ='inflection')
reproduction of results for article:vignette('inflectionMissionImpossible', package ='inflection')
a
vignette for ‘impossible’ missionsRemove the option to plot in two separate pdfs ‘ese_iterations.pdf’,
‘ede_iterations.pdf’ from findipiterplot()
and open new plot windows
instead of saving files.
ese()
bese()
findiplist()
findipiterplot()
New functions with self declaring names were added:
ese(x,y,index)
bese(x,y,index)
ede(x,y,index)
edeci(x,y,index)
bede(x,y,index)
All functions require length(x)>=4
in order to
create numeric output
The function findipiterplot(x,y,index)
was improved and became
findipiterplot(x, y, index, plots = TRUE, crossrun = FALSE, ci = FALSE)
Demetris T. Christopoulos (2016). On the efficient identification of an inflection point.International Journal of Mathematics and Scientific Computing, (ISSN: 2231-5330), vol. 6(1). https://veltech.edu.in/wp-content/uploads/2016/04/Paper-04-2016.pdf
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