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mkt
2013 Mar 01
7
Conditional Weighted Average (ddply or any other function)
Hello R community,
I am computing weighted average statistic by using ddply function:
My data set is:
N1 T1 S1 I1 C1 FY-4 ROE11 EPS11 MKT11
N1 T1 S1 I1 C1 FY-3 ROE12 EPS12 MKT12
N1 T1 S1 I1 C1 FY-2 ROE13 EPS13 MKT13
N1 T1 S1 I1 C1 FY-1 ROE14 EPS14 MKT14
N1 T1 S1 I1 C1 FY0 ROE15 EPS15 MKT15
N1 T1 S1 I1 C1 FY1 ROE16 EPS16 MKT16
N1 T1 S1 I1 C1 FY2 ROE17 EPS17 MKT17
N2 T2 S2 I2 C2 FY-4 ROE21 EP...