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下载了一个SAS的代码，在运用中需要进行简单的修改，但是我应该如何理解教程里的这句话呢？？各位大神求指教！！
All user inputs are specified in the fileC:\Faultline\FL_Code\FL_Code_parameters.txt.
Here you can specify which dataset to use,and what variables to use for the faultline calculations, what to name theoutput files, etc.以下是文档 C:\Faultline\FL_Code\FL_Code_parameters.txt.的内容
*/
/* Specify a Working Directory for SAS dataset files*/
LIBNAME FLDSets 'C:\FaultLine\FL_SASDataSets';
LIBNAME FLCode 'C:\FaultLine\FL_Code';
LIBNAME FLOut 'C:\FaultLine\FL_Output';
/* List all the variables in the raw data file
/* (no commas between variable names, semicolon at end of list)*/
%let list_of_all_variables = group member gender1 gender2 race1 race2 race3 age educ
tenure function1 function2 function3 function4;
/* List all the variables you want to use int he faultline calculations */
/* (no commas between variable names, semicolon at end of list)*/
%let list_of_faultline_variables = age gender1 gender2 race1 race2 tenure;
/* Specify the number of groups in the file (gnum= number of groups) */
%let gnum=4;
/* Specify the group identifier variable */
%let group_id_variable= group;
/* File where Raw data is found
/* (first line is assumed to be column headers, data starts reading in in row 2) */
%let rawdatafile='C:\Faultline\FL_Data\FL_testdata.csv';
/* File where rescaling factors are listed
/*(Rescaling factors for the variables in list_of_faultline_variables) */
/*(first line is assumed to be column headers, data starts reading in in row 2) */
/*(Rescaling factors, r, are of the form: newdata=rawdata*r */
/* so if you want newdata=rawdata/10, use r=1/10=.10 */
%let rescalingfile='C:\Faultline\FL_Data\FL_testrescaling.txt';
/* File for output of faultline scores and distances */
%let resultfile='C:\Faultline\FL_Output\FL_testoutput.txt';
/* File for output of rawdata (to verify that SAS read it in correctly) */
%let rawdatafile_out='c:\Faultline\FL_Output\FL_rawdata_out.txt';
/* File for output of the rescaling factors (to verify that SAS read it in correctly) */
%let rescalingfile_out='c:\Faultline\FL_Output\FL_rescaling_out.txt';
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