检测字符变量文本字符串中的单词并根据该单词 SAS 的存在创建变量

Question

您好，很抱歉标题名称很长！我正在处理一些具有长文本字符串的数据（某些观察结果最多有 2000 个字符）。这些字符串中可能有一个单词 (AB/CD)，该单词可能位于字符串中的任何位置。我正在尝试检测文本字符串中的 AB/CD，并在该单词出现在文本中时创建一个二进制变量 (ABCD_present)。

以下是一些示例数据

data test;
length status $175;
infile datalines dsd dlm="|" truncover;
input ID Status$;

datalines;
1|This is example text I am using instead of real data. I am making the length of this text longer to mimic the long text strings of my data AB/CD
2|This is example AB/CD text I am using instead of real data. I am making the length of this text longer to mimic the long text strings of my data
3|This is example text I am using instead of real data. I AB/CD am making the length of this text longer to mimic the long text strings of my data
4|This is example text I am using instead of real data. I am making the length of this text longer to mimic the long text strings of my data
5|This is example text I am using instead of real data. I am making the length of this text longer to mimic the long text strings of my data
6|This is example text I am using instead of real data. I am making the length of this text longer to AB/CD mimic the long text strings of my data

;
run;

任何关于这方面的指导都会很好！我没有太多使用长文本字符串的经验。

提前谢谢您

Answer 1

您可以使用

find

功能。

data want;
    set test;
    flag_abcd = (find(status, 'AB/CD') > 0);
run;

Status ID   flag_abcd
...    1    1
...    2    1
...    3    1
...    4    0
...    5    0
...    6    1