1# 大书页
2)求公司B的PV值 (没有问题):
proc iml;
use lastAccumImpulse;
read all where(ric='B' )into x;
x1=x[1,1];
x2=x[1,2];
x3=x[1,3];
x4=x[1,4];
use CovInnovation;
read all where(ric='B' )into y ;
y1=y[1:4,1];
y2=y[1:4,2];
y3=y[1:4,3];
y4=y[1:4,4];
z=T(x);
PV=x*y*z;
print x y z PV;
quit;