Question

我正在尝试过滤出REASON_FOR_VISIT变量的字符串中包含特定单词的记录。然后，我想使用其余记录来计算变量total_ed_los和arrive_to_dr_sees的中值。

我有以下代码，但恐怕它没有筛选出我想要的字符串。这是我需要使用PROC SQL的实例还是其他选项？

谢谢！

data FT_Post;
set WORK.FT_May;
Where checkin_time between '12:00't and '20:00't;
Where REASON_FOR_VISIT Not Like '%psyc%';
Where REASON_FOR_VISIT Not Like '%psy eval%';
Where REASON_FOR_VISIT Not Like '%psych%';
Where REASON_FOR_VISIT Not Like '%suicid%';
Where REASON_FOR_VISIT Not Like '%homicid%'; 
run; 

proc means data=FT_Post median;
class checkin_date;
var  total_ed_los arrive_to_dr_sees;
run;

Answer 1

如果数据步骤中有多个“ vanilla” where子句，则您将在日志中看到以下内容：

注意：WHERE子句已被替换。

为避免此行为，您可以使用where also：

data FT_Post;
set WORK.FT_May;
Where checkin_time between '12:00't and '20:00't;
Where also REASON_FOR_VISIT Not Like '%psyc%';
Where also REASON_FOR_VISIT Not Like '%psy eval%';
Where also REASON_FOR_VISIT Not Like '%psych%';
Where also REASON_FOR_VISIT Not Like '%suicid%';
Where also REASON_FOR_VISIT Not Like '%homicid%'; 
run;

您现在将看到：

注意：WHERE子句已增强。

使用多个Where语句

1 个答案: