proc logistic模型方程表示“等斜率”时的语法错误

Question

我一直试图运行一个逻辑逐步回归模型，使用有序的结果。因为我试图解释比例概率的假设，我的一些变量有不均匀的斜率。因此，在我的代码中，我同时指出了等斜率和非等斜率，但是我继续得到这个语法错误。

ERROR 22-322: Syntax error, expecting one of the following: ;, ABSFCONV, AGGREGATE, ALPHA, BACKWARD, BEST, BINWIDTH, BUILDRULE, CL, 
              CLODDS, CLPARM, CODING, CONVERGE, CORRB, COVB, CT, CTABLE, DETAILS, DSCALE, EXPB, FAST, FCONV, FIRTH, GCONV, 
              HIERARCHY, INCLUDE, INFLUENCE, IPLOTS, ITPRINT, L, LACKFIT, LINK, MAXITER, MAXSTEP, NOCHECK, NODUMMYPRINT, NOFIT, 
              NOINT, NOLOGSCALE, OFFSET, OUTROC, PARMLABEL, PCORR, PEVENT, PL, PLCL, PLCONV, PLRL, PPROB, PSCALE, RIDGING, 
              RISKLIMITS, ROCEPS, RSQUARE, SCALE, SELECTION, SEQUENTIAL, SINGULAR, SLE, SLENTRY, SLS, SLSTAY, START, STB, STEPWISE, 
              STOP, STOPRES, TECHNIQUE, UNEQUALSLOPES, WALDCL, WALDRL, XCONV.  
ERROR 76-322: Syntax error, statement will be ignored.

我确信我的代码是正确的，即使我没有为equal斜率选项和unequal斜率选项声明任何特定的变量，我仍然会收到相同的消息。下面是我的代码。

proc logistic data=upper_limit;
class Profitrank dealer_state_id dlr_zip RUCA2 area_description/ param =  ref;
model profitrank =  num_booked num_approved num_apps bk_conversion_rt appr_rt num_new num_used Percentage_of_New Average_Vehicle_Age average_dti 
average_pti average_revolving_balance average_revolving_balance_rate average_public_records average_inquiries average_inquiry_6_months 
average_open_rev_trades average_term average_major_derog average_minor_derog average_open_install average_scorecard average_fico_score average_app_risk_score
average_LTV average_consumer_rate average_truist_rate Dealer_state_ID RUCA2/link=clogit selection=stepwise SLE=0.10 SLE=0.10 EQUALSLOPES=(appr_rt average_pti average_public_records
 average_open_rev_trades average_major_derog average_minor_derog average_open_install average_fico_score average_app_risk_score RUCA2) unequalslopes details maxiter=500;
run;``` 

Any help with this would be greatly appreciated!

Answer 1

您需要使用与您正在使用的SAS版本一起工作的选项。EQUALSLOPES选项是在SAS/STAT 14.1中添加的，它是在2015年发布的SAS9.4m3。

请注意，SAS是订阅许可证。这意味着你已经支付了使用最新版本的权利。找人在你的公司安装最新版本的SAS。您还可能需要使用新版本的Enterprise来利用这些新特性。