Question

我是SAS的新手，当我将计算机与SAS连接到WRDS（沃顿研究数据服务）时，我遇到了问题。我想计算一些投资组合，我正在运行此代码。

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Program Description  : MOMENTUM PORTFOLIOS OF JEGADEESH AND TITMAN (JF, 1993) 
                       USING MONTHLY RETURNS FROM CRSP
     Created by  : G. Cici, WRDS
     Modified by : R. Moussawi, WRDS
     Date Created  : November 2004
     Date Modified  : May 2007


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 %let wrds = wrds.wharton.upenn.edu 4016;
 options comamid=TCP remote=WRDS;
 signon username=_prompt_;

 rsubmit;
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1. Specifying Options
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*** NUMBER OF PRIOR MONTHS USED TO CREATE MOMENTUM PORTFOLIOS;
%let J=6; * J can be between 3 to 12 months;
*** HOLDING PERIOD IN MONTHS AFTER PORTFOLIO CREATION;
%let K=6; * K can be between 3 to 12 months;
*** Footnote 4 page 69: 1965-1989 are the dates of portfolio holding periods;
*** BEGINING SAMPLE PERIOD;
%let begyear=1965; 
*** ENDING SAMPLE PERIOD;
%let endyear=1989; 



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2. Get Historical Exchange Codes and Share Codes for Common Stocks
 *****************************************************************************    ;
* Merge historical codes with CRSP Monthly Stock File;
proc sql;
create table msex1
as select a.permno, a.date, a.ret, b.exchcd, b.shrcd
from crsp.msf(keep=date permno ret) as a
left join crsp.mseall(keep=date permno exchcd shrcd) as b
on a.permno=b.permno and a.date= b.date;
quit;

首先，我提供用户名和密码以连接到wrds，然后，它会显示如下错误消息：

 Libname CRSP is not assigned

知道为什么会这样吗？谢谢！

Answer 1

您提交以远程运行的代码需要夹在rsubmit;和endrsubmit;之间。你遗失了endrsubmit;。似乎SAS正在尝试在本地运行未分配libname crsp的代码。

SAS和WRDS的问题

1 个答案: