我是SAS的新手,在创建以下程序时遇到了一些困难。
我的要求是传递动态生成的文件名并读取它,这样就不必写五次代码来读取来自5个不同文件的数据,然后在数据集上运行freq。
我已经提供了以下代码,并且必须为50多个文件编写此代码:
代码
filename inp1 '/chshttp/prod/clients/coms/raw/coms_coms_relg_f1102_t1102_c10216_vEL5535.raw';
filename inp2 '/chshttp/prod/clients/coms/raw/coms_coms_relg_f1103_t1103_c10317_vEL8312.raw';
filename inp3 '/chshttp/prod/clients/coms/raw/coms_coms_relg_f1104_t1104_c10420_vEL11614.raw';
filename inp4 '/chshttp/prod/clients/coms/raw/coms_coms_relg_f1105_t1105_c10510_vEL13913.raw';
filename inp5 '/chshttp/prod/clients/coms/raw/coms_coms_relg_f1106_t1106_c10628_vEL17663.raw';
data test;
Do i = 1 to 5;
infile_name = 'inp' || i;
infile infile_name recfm = v lrecl=1800 end=eof truncover;
INPUT
@1 E_CUSTDEF1_CLIENT_ID $CHAR5.
@1235 E_MED_PLAN_CODE $CHAR20.
@1090 MED_INS_ELIG_COVERAGE_IND $CHAR20.
@1064 MED_COVERAGE_BEGIN_DATE $CHAR8.
@1072 MED_COVERAGE_TERM_DATE $CHAR8.
;
if E_CUSTDEF1_CLIENT_ID ='00002' then
output test;
end;
run;
proc freq data = test;
tables E_CUSTDEF1_CLIENT_ID*E_MED_PLAN_CODE / list missing;
run;
请帮忙!!
这里有一个您可以调整的示例。有不同的方法可以做到这一点,但这是一种——这取决于你想要的频率。
步骤1:创建一个数据集"my_filenames",该数据集将要读取的文件名存储在变量FILE_NAME中,每行一个。
第二步:读入文件。
data my_data;
set my_filenames;
infile a filevar=file_name <the rest of your options>;
<your input statement>;
run;
proc freq data=mydata;
by file_name;
<your table statements>;
run;
这是一个简单的数据驱动代码,不需要宏,也不需要将大量数据存储在不应该有数据的东西中(宏变量、文件名等)
要直接回答您的问题,这里有一个SAS宏来读取每个文件并运行PROC FREQ
:
%macro freqme(dsn);
data test;
infile "&dsn" recfm = v lrecl=1800 end=eof truncover;
INPUT @1 E_CUSTDEF1_CLIENT_ID $CHAR5.
@1235 E_MED_PLAN_CODE $CHAR20.
@1090 MED_INS_ELIG_COVERAGE_IND $CHAR20.
@1064 MED_COVERAGE_BEGIN_DATE $CHAR8.
@1072 MED_COVERAGE_TERM_DATE $CHAR8.
;
if E_CUSTDEF1_CLIENT_ID = '00002';
run;
proc freq data=test;
tables E_CUSTDEF1_CLIENT_ID*E_MED_PLAN_CODE / list missing;
run;
proc delete data=test;
run;
%mend;
%freqme(/chshttp/prod/clients/coms/raw/coms_coms_relg_f1102_t1102_c10216_vEL5535.raw);
%freqme(/chshttp/prod/clients/coms/raw/coms_coms_relg_f1103_t1103_c10317_vEL8312.raw);
%freqme(/chshttp/prod/clients/coms/raw/coms_coms_relg_f1104_t1104_c10420_vEL11614.raw);
%freqme(/chshttp/prod/clients/coms/raw/coms_coms_relg_f1105_t1105_c10510_vEL13913.raw);
%freqme(/chshttp/prod/clients/coms/raw/coms_coms_relg_f1106_t1106_c10628_vEL17663.raw);
请注意,我添加了一个PROC DELETE
步骤,用于在创建报告后删除SAS数据集。我这样做更多的是为了说明,因为你没有说你需要将文件作为SAS数据集进行后续处理。
您可以将其用作其他宏编程的模板。