many thanks, how to solve this problem? if I want to regress the three equtions, eq1, eq2, eq3, respectively in the only one proc regression, what can i do with the regression A?
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I got a dataset (dataset2reg) that with several variables (var1--var10) and group variables, then i do the regression as following: Regression A: proc reg data=dataset2reg outest=result1 edf tableout; eq1: model var0=var1 var2 var3 var4; eq2: model var0=var5 var6 var7 var8; eq3: model var0=var9 var10 var11 var12; by group; run; quit; Regression B: proc reg data=dataset2reg outest=result1 edf tableout; model var0=var1 var2 var3 var4; by group; run; quit; the result of eq1 of Regression A is different from Regression B, what's wrong with my regressions?
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re I got a dataset (dataset2reg) that with several variables (var1--var10) and group variables, then i do the regression as following: Regression A: proc reg data=dataset2reg outest=result1 edf tableout; eq1: model var0=var1 var2 var3 var4; eq2: model var0=var5 var6 var7 var8; eq3: model var0=var9 var10 var11 var12; by group; run; quit; Regression B: proc reg data=dataset2reg outest=result1 edf tableout; model var0=var1 var2 var3 var4; by group; run; quit; the result of eq1 of Regression A is different from Regression B, what's wrong with my regressions?
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