- proc univariate data=temp3.moneyness;
- class option_type;
- var moneyness;
- histogram moneyness/ vscale=count normal(noprint);
- inset normal(mu sigma);
- run; /*对应第一个图*/
- proc univariate data=temp3.moneyness;
- class option_type;
- var moneyness;
- histogram moneyness/ vscale=count midpoints=0.5 to 2.7 by .05;
- inset normal(mu sigma);
- run; /*对应第二图*/



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