IFN 関数
https://documentation.sas.com/doc/ja/pgmsascdc/v_061/proccas/n1v6aoomm10yxnn1mf4407trgk90.htm
https://documentation.sas.com/doc/ja/pgmsascdc/v_061/lefunctionsref/n0l3n5z2h31h7wn1fmnqd33ibhap.htm
Revision #1
Created 9 December 2025 06:35:02 by nonoha
Updated 9 December 2025 06:35:20 by nonoha