data nonlinear;
do x=1 to 627;
p=(sin(x/100)+1)*0.45;
do j=1 to 100;
x1=x+(j-1)/100;
if ranuni(8655645)<=p then y=1; else y=0;
output; drop p j;
end;
end;
run;
proc rank data=nonlinear out=nonlinearrank groups=…
In Chapter 2 of the book “Pharmaceutical Statistics Using SAS: A Practical Guide” (SAS Press), Prof. Rayens, W and Dr. Johnson K. presented their SAS implementation of boost algorithms, including AdaBoost, RealBoost, GentleBoost and LogitBoost. The o…
algorithms are proven to be very effective data mining tools, either used stand alone, or as a building block to handle nonlinearity, etc. Implementation of Boost algorithm in SAS is not easy to find although it is not difficult to wr…
In this post, I post an improved SAS macro of the single partition split algorithm in Chapter 2 of “Pharmaceutical Statistics Using SAS: A Practical Guide” by Alex Dmitrienko, Christy Chuang-Stein, Ralph B. D’Agostino.
The single part…