Help using Base SAS procedures

Backward selection with proc surveyreg

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Backward selection with proc surveyreg

Hi everyone,

I would like to perform a backward selection with a proc surveyreg. Here is the code I have so far but I have no idea of how  to peform a backward selection as for a classic proc reg procedure.

Proc surveyreg data=deter.basethree ;


Class Capigroup nationalityn;


model herding = qmoy_trans volmoy_trans qtot_jour nbtrans_jour Capigroup nationalityn cluster large_buy market_buy small_buy withinbuy buyatbid buybelowbid large_sell market_sell small_sell withinsell sellatask sellaboveask/ solution;

run;


Could you please help me with it  ?



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