# 文字列を切り出す

<details><summary>SUBSTR関数</summary>

``` sas
trimmed_str = substr(str, start_pos, length);
```

...

<https://documentation.sas.com/doc/ja/pgmsascdc/v_061/ds2ref/p0mce96o6y74fzn1ro3vtputzhut.htm>

</details>