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mymcxd ·¢±íÓÚ 2020-8-21 15:18:57 |AIдÂÛÎÄ
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ΪʲôstataÖ»Ö´ÐÐif¶øÃ»ÓÐÖ´ÐÐelse ifÖ®ºóµÄ²¿·Ö£¿²»ÖªµÀÄÄÀï´íÁË£¬ÇóÖ¸µã
Êý¾Ý˵Ã÷£ºageb1µ½ageb5ÊÇÎå¸ö×ÓÅ®µÄÄêÁ䣬ÒÀ´Î´Ó´óµ½Ð¡£¬¿ÉÒÔÓÐȱ©ֵ£»q406e1-q406e5ÔòΪ¶ÔÓ¦×ÓÅ®µÄÏ־ӵأ¬È¡Öµ1Ϊ±¾µØ¡£
Ä¿µÄ£ºÖÁÉÙÓÐÒ»¸ö3ËêÒÔÏÂ×ÓÅ®ÇÒÏÖ¾ÓµØÎª±¾µØ
±¾È˵Ä˼·£ºÏÈɸѡÖÁÉÙÓÐÒ»¸öСÓÚ3ËêµÄ×ÓÅ®µÄÑù±¾£¬È»ºóÔÙ¸ù¾Ýȱ©ֵ×î´ó£¬Ñ¡³öÄǸö×îСµÄ×ÓÅ®£¬ÔÙ¿´¿´ËüµÄÏÖ¾ÓµØÊDz»ÊÇ1£¬µ«ÊÇÔËÐÐÖ®ºóÈ´·¢ÏÖstataÖ»Ö´ÐÐif¶øÃ»ÓÐÖ´ÐÐelse ifÖ®ºóµÄ²¿·Ö£¿Çó½â´ð£¡Èç¹ûÓиüºÃµÄ·½·¨£¬Ò²¿ÒÇëÖ¸½Ì£¡

keep if ageb1 <4 | ageb2 <4 | ageb3 <4 | ageb4 <4 | ageb5 <4
if ageb1 < ageb2{
  drop if q406e1 != 1
}
else if ageb1 >= ageb2{
  if ageb2 < ageb3{
    drop if q406e2 != 1
  }
  else  if ageb2 >= ageb3{
    if ageb3 < ageb4{
          drop if q406e3 != 1
    }
        else if ageb3 >= ageb4{
          if ageb4 < ageb5{
            drop if q406e4 != 1
          }
          else if ageb4 >= ageb5{
            drop if q406e5 != 1
      }
   }
  }
}

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´óÅÖÁé ·¢±íÓÚ 2020-11-13 22:29:37
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ÄãµÄÄ¿±êÊÇɸѡ³öÖÁÉÙÓÐÒ»¸ö3ËêÒÔÏÂ×ÓÅ®ÇÒÏÖ¾ÓµØÎª±¾µØµÄÑù±¾¡£Õâ¸öÈÎÎñ¿ÉÒÔͨ¹ý×éºÏÌõ¼þºÍʹÓÃÊʵ±µÄStataÃüÁîÀ´Íê³É¡£ÏÂÃæÊÇÒ»¸ö¿ÉÄܵĽâ¾ö·½°¸£º

```stata
* ¼ÙÉèÊý¾ÝÒѾ­¼ÓÔØµ½StataÖÐ

* Éú³ÉÒ»¸ö±ê¼Ç±äÁ¿£¬³õÖµÉèΪ0£¨´ú±í²»Âú×ãÌõ¼þ£©
gen flag = 0

* ±éÀúËùÓÐ×ÓÅ®µÄÄêÁäºÍÏ־ӵأ¬Èç¹ûÂú×ãÌõ¼þ£¬Ôò½«flagÉèΪ1
replace flag = 1 if (ageb1 <= 3 & q406e1 == 1) | ///
                   (ageb2 <= 3 & q406e2 == 1) | ///
                   (ageb3 <= 3 & q406e3 == 1) | ///
                   (ageb4 <= 3 & q406e4 == 1) | ///
                   (ageb5 <= 3 & q406e5 == 1)

* ±£ÁôÂú×ãÌõ¼þµÄ¹Û²ìÖµ
keep if flag == 1

* ¿ÉÒÔɾ³ýflag±äÁ¿£¬Èç¹û²»ÔÙÐèÒª
drop flag
```

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