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Added a blog entry "A MACRO FOR MEDIAN IMPUTATION" data tmp1; do i = 1 to 1000; x1 = rannor(1); x2 = rannor(2); if i < 10 then do; x1 = .; x2 = .; end; output; end;run;proc means data = tmp1 n nmiss median; var x1 x2;ru July 17 11:39 PM Added a blog entry "A MACRO PERFORMING 1-SIDE CAPPING OF NUMERIC VARIABLES" data tmp1; do i = 1 to 1000; x1 = rannor(1); x2 = rannor(2); crap = 1; output; end;run;proc means data = tmp1 p99 min median max n; var x1 x2;run;%macro cap(in = , out = output, var July 17 10:33 PM Added a blog entry "INTERNAL RATE OF RETURN USING BISECTION METHOD" # FINANCIAL NUMERICAL RECIPES IN C++# EXAMPLE 3.2: internal rate of returnfrom numpy import *# a function calculating present valuedef pv_discrete(r): C = array([-100, 10, 110]) t = array([0, 1, 2]) July 13 10:34 PM Added a blog entry "ONE INTEREST RATE WITH ANNUAL COMPOUNDING" # FINANCIAL NUMERICAL RECIPES IN C++# EXAMPLE 3.1: one interest rate with annual compoundingfrom numpy import *# investment for 100 today with 75 cash flow in next 2 years eachC = array([-100, 75, 75] July 13 12:41 AM Added a blog entry "A MACRO TO PERFORM FEATURE SELECTION" options mprint;data kyphosis; input Age StartVert NumVert Kyphosis @@; if StartVert <= 10 then StartVert_class = "A"; else StartVert_class = "B"; datalines; 71 5 3 0 158 14 3 0 128 5 July 12 9:35 AM Updated Profile
June 22 8:25 PM Updated folder "Public"
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