ABCcurve {ABCanalysis}  R Documentation 
Calculates cumulative percentage of largest data (effort) and cumulative percentages of sum of largest Data (yield) with spline interpolation (second order, piecewise) of values inbetween.
ABCcurve(Data, p)
Data 
vector[1:n] describes an array of data: n cases in rows of one variable 
p 
optional, an vector of values specifying where interpolation takes place, created by 
Output is of type list which parts are described in the following
Curve 
A list with

CleanedData 
vector [1:m], columnvector containing Data>=0 and zeros for all NA, NaN and negative values in Data(1:n) 
Slope 
A list with

Michael Thrun
http://www.unimarburg.de/fb12/datenbionik
Ultsch. A ., Lotsch J.: Computed ABC Analysis for Rational Selection of Most Informative Variables in Multivariate Data, PloS one, Vol. 10(6), pp. e0129767. doi 10.1371/journal.pone.0129767, 2015.