Hello, Could someone tell me how to write the code for an f-test. The procedure I am trying to run consists of the following: data class; infile 'c:\prodata2.txt'expandtabs; input y x1 x2 x3 x4 ; proc means data=class; var y x1 x2 x3 x4; run; proc reg; model y=x1 x2 x3 x4/spec acov; run; proc reg; model y=x1 x3/spec acov; run; What do I insert inbetween the first and second proc regs to run the f-test on the restricted model y=x1 x3. Thank you in advance
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