Znn3bq.jpeg
±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 4208  |  »Ø¸´: 9
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

yuguiyan

ÖÁ×ðľ³æ (ÎÄ̳¾«Ó¢)

[ÇóÖú] ÇóÖúÖùÐÎͼÎó²îÏßÊÇstdev£¬»¹ÊÇÐèÒª³ýÒÔ2? ÒÑÓÐ3È˲ÎÓë

ÇóÖú£¬×öÖùÐÎͼʱÎÒÖ±½ÓÊäÈëÁËÆ½¾ùÖµ£¬ºóÃæ¸ú×Åstdev,×÷ΪÎó²îÏߣ¬ÇëÎʶÔÂð£¿ÊDz»ÊÇ»¹Òª½«stdev³ýÒÔ2ÔÙ×÷ΪÎó²îÏß°¡£¿

[ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ]
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zhouwenjie

ľ³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
yuguiyan: ½ð±Ò+15 2014-05-07 00:04:02
Õâ¸öÊDz»ÐèÒª³ýÒÔ2µÄ£¬µÃ³öµÄÖµÊDZê×¼²î£¬×÷ͼµÄʱºòÖ±½ÓÓÃÕâ¸ö±ê×¼²î£¬×÷ͼʱ¿ÉÒÔÑ¡ÔñÏÔʾÕý¸ºÎó²î£¬¾ÍÔÚÆ½¾ùÖµµÄÉÏÃæºÍÏÂÃæ¸÷³öÏÖһС¶Î¡£

[ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ]
×ö×îºÃµÄ×Ô¼º£¡
4Â¥2014-04-12 08:17:49
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 10 ¸ö»Ø´ð

yuguiyan

ÖÁ×ðľ³æ (ÎÄ̳¾«Ó¢)

stdev¾ÍÊDZê×¼²îÂ𣿰ٶÈÎÄ¿âÀï˵¾ÍÊǰѱê×¼²î·ÅÉϰ¡

[ ·¢×ÔСľ³æ¿Í»§¶Ë ]
2Â¥2014-04-12 00:45:30
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

userhung

½û³æ (ÎÄѧ̩¶·)

ľ³æ²©Ê¿

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÒýÓûØÌû:
2Â¥: Originally posted by yuguiyan at 2014-04-12 00:45:30
stdev¾ÍÊDZê×¼²îÂ𣿰ٶÈÎÄ¿âÀï˵¾ÍÊǰѱê×¼²î·ÅÉϰ¡

Ò»°ãÊǵÄ~~~~~~~~~~~~~~~~~
3Â¥2014-04-12 06:16:16
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yuguiyan

ÖÁ×ðľ³æ (ÎÄ̳¾«Ó¢)

ÒýÓûØÌû:
4Â¥: Originally posted by zhouwenjie at 2014-04-12 08:17:49
Õâ¸öÊDz»ÐèÒª³ýÒÔ2µÄ£¬µÃ³öµÄÖµÊDZê×¼²î£¬×÷ͼµÄʱºòÖ±½ÓÓÃÕâ¸ö±ê×¼²î£¬×÷ͼʱ¿ÉÒÔÑ¡ÔñÏÔʾÕý¸ºÎó²î£¬¾ÍÔÚÆ½¾ùÖµµÄÉÏÃæºÍÏÂÃæ¸÷³öÏÖһС¶Î¡£

ÎÒÊÇÓÃsigmaplotËãÍêmean ºÍstdevºóÊäÈ룬³öͼ£¬Ò»ÁÐmean,Ò»ÁÐstdev,ÉÔºóÎҽظöͼ£¬Âé·³°ïÎÒ¿´¿´¶Ô²»¶Ô

[ ·¢×ÔСľ³æ¿Í»§¶Ë ]
5Â¥2014-04-12 08:41:37
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 308Çóµ÷¼Á +15 īīĮ 2026-04-06 15/750 2026-04-08 15:14 by screening
[¿¼ÑÐ] ÉúÎïÒ½Ò©µ÷¼Á£üSCIÖпÆÔºÈýÇøÒ»×÷+¶àÏî¿ÆÑгɹû +8 likangxing 2026-04-07 11/550 2026-04-08 00:02 by lys0704
[¿¼ÑÐ] 081200-11408-276ѧ˶Çóµ÷¼Á +6 ´Þwj 2026-04-02 6/300 2026-04-07 18:45 by Çóµ÷¼Ázz
[¿¼ÑÐ] 318Çóµ÷¼Á +5 ÀîÇàɽɽɽ 2026-04-07 5/250 2026-04-07 18:24 by À¶ÔÆË¼Óê
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©»¯¹¤085600 310·ÖÇóµ÷¼Á +20 0856²ÄÁÏÓ뻯¹¤3 2026-04-04 22/1100 2026-04-07 15:14 by Éϰ¶¿ì¿ì
[¿¼ÑÐ] 080500Çóµ÷¼Á +12 »ÆÓ 2026-04-06 12/600 2026-04-07 12:41 by upczlm1989
[¿¼ÑÐ] һ־Ը̫ԭÀí¹¤´óѧ¼ÆËã»ú¼¼Êõר˶348£¬Çóµ÷¼ÁÖ¸µ¼ +3 nexious 2026-04-05 3/150 2026-04-07 08:19 by jp9609
[¿¼ÑÐ] Çóµ÷¼Á +4 µçÆøÐ¡Éñͯ 2026-04-04 6/300 2026-04-07 00:14 by guanxin1001
[¿¼ÑÐ] 385·Ö ÉúÎïѧ£¨071000£©Çóµ÷¼Á +12 qf626 2026-04-01 12/600 2026-04-06 17:36 by 52305043001
[¿¼ÑÐ] 377Çóµ÷¼Á +6 by.ovo 2026-04-05 6/300 2026-04-05 22:18 by dongzh2009
[¿¼ÑÐ] ÉúÎïÓëÒ½Ò©µ÷¼Á +4 Ê®Æßsa 2026-04-05 4/200 2026-04-05 20:05 by lys0704
[¿¼ÑÐ] 298Çóµ÷¼Á +3 manman511 2026-04-05 3/150 2026-04-05 18:09 by kk112233
[¿¼ÑÐ] 085500»úеר˶³õÊÔ288Çóµ÷¼Á +3 GZJguo666- 2026-04-05 3/150 2026-04-05 18:06 by jkddd
[¿¼ÑÐ] 26¿¼Ñе÷¼Á0710 0860 +9 ²¹²¹²»²¹ 2026-04-03 14/700 2026-04-04 23:32 by ¹û¶³´óÍõ
[¿¼ÑÐ] 0854Çóµ÷¼Á +4 assdll 2026-04-03 4/200 2026-04-04 22:17 by hemengdong
[¿¼ÑÐ] 283·ÖÇóµ÷¼Á +7 СÄô°®Ñ§Ï° 2026-04-03 7/350 2026-04-04 21:51 by hemengdong
[¿¼ÑÐ] 325Çóµ÷¼Á +4 ´º·ç²»½èÒâ 2026-04-04 4/200 2026-04-04 14:46 by ÏæÅ©´¢ÄܲÄÁÏ
[¿¼ÑÐ] 26µ÷¼Á 086003 +6 ʧ»îµÄϸ°û 2026-04-04 6/300 2026-04-04 09:50 by zhangdingwa
[¿¼ÑÐ] 311Çóµ÷¼Á +11 Ó¸ҵÄСÎâ 2026-04-02 11/550 2026-04-03 21:46 by qlm5820
[¿¼ÑÐ] һ־Ըɽ¶«´óѧ»¯Ñ§Ó뻯¹¤Ñ§Ôº²ÄÁÏÓ뻯¹¤×¨Ë¶£¬360·ÖÇóµ÷¼Á +4 ²»Ô¸Í¸Â¶ÐÕÃûµÄË 2026-04-02 4/200 2026-04-03 09:29 by ÒÅÍüÏûʧµÄž™
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û