ocr: K=2 FIT DATA. WITH K KNOTS CALCULATE AIC FAICI FINO A NEW KNOT K=3 NC.0 FIT DATA WITH K KNOTS IS CALCULATE YES NC=0 NO AIC (=AIC2! OR NC>5 TAXE FIT! YES AICIS NO AKCI=AIC2 FOR AICI AIC2 FINO NTERYALS RETURN K1,K., Kr WHERE KNOTS ARE TOB BE ADDEO HAVE ALL - FIND NEW YES INTERYALS Xir i=l,.., KNOT IN BEEN CONSIDERED INTERVAL K ADO KNOY NO 15 NEW KNOT YES EXCHANGE K! XtI NEAR OLOXNOT KNOTS HAVE ALL KNOTS NO GEEN EXCHANGED YES NC: : NC +i