Hi,
With data A, I run a regression and save coefficients. Then I start to work with data B. I want to reference the saved coefficients using data A. How can I do that in SAS?
Thanks,
Sunny
Hi Sunny,
The closest we have to this in SAS is utilizing item stores for models estimated by certain models.
Here is an example.
%let nObs = 5000;
%let nVars = 100;
data SimuData;
array x{&nVars};
do obsNum=1 to &nObs;
do j=1 to &nVars;
x{j}=ranuni(1);
end;
linp = 10 + 11*x1 - 10*sqrt(x2) + 2/x3 - 8*exp(x4) + 7*x5*x5
- 6*x6**1.5 + 5*log(x7) - 4*sin(3.14*x8) + 3*x9 - 2*x10;
TrueProb = 1/(1+exp(-linp));
if ranuni(1) < TrueProb then y=1;
else y=0;
output;
end;
run;
proc logistic data=SimuData;
effect splines = spline(x1-x&nVars/separate);
model y = splines/selection=stepwise;
store sasuser.SimuModel;
run;
data test;
array x{&nVars};
do j=1 to &nVars;
x{j}=0.15;
end;
drop j;
output;
run;
proc plm restore=sasuser.SimuModel;
score data=test out=testout predicted / ilink;
run;
data testout;
set testout(drop=x1-x&nVars);
run;
proc print data=testout;
run;
You can find other examples here.
SAS/STAT 13.2 User's Guide Example Programs (Sample Library)
Hi Sunny,
The closest we have to this in SAS is utilizing item stores for models estimated by certain models.
Here is an example.
%let nObs = 5000;
%let nVars = 100;
data SimuData;
array x{&nVars};
do obsNum=1 to &nObs;
do j=1 to &nVars;
x{j}=ranuni(1);
end;
linp = 10 + 11*x1 - 10*sqrt(x2) + 2/x3 - 8*exp(x4) + 7*x5*x5
- 6*x6**1.5 + 5*log(x7) - 4*sin(3.14*x8) + 3*x9 - 2*x10;
TrueProb = 1/(1+exp(-linp));
if ranuni(1) < TrueProb then y=1;
else y=0;
output;
end;
run;
proc logistic data=SimuData;
effect splines = spline(x1-x&nVars/separate);
model y = splines/selection=stepwise;
store sasuser.SimuModel;
run;
data test;
array x{&nVars};
do j=1 to &nVars;
x{j}=0.15;
end;
drop j;
output;
run;
proc plm restore=sasuser.SimuModel;
score data=test out=testout predicted / ilink;
run;
data testout;
set testout(drop=x1-x&nVars);
run;
proc print data=testout;
run;
You can find other examples here.
SAS/STAT 13.2 User's Guide Example Programs (Sample Library)
many thanks!
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