Znn3bq.jpeg
²é¿´: 4216  |  »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

yuguiyan

ÖÁ×ðľ³æ (ÎÄ̳¾«Ó¢)

ÒýÓûØÌû:
6Â¥: Originally posted by reko34 at 2014-04-12 09:40:05
Îó²îÏßÊÇÖ±½Ó²å±ê×¼²îµÄ£¿ÕâÑùÖÃÐŶÈÖ»ÓÐ6X%£¬Ó¡ÏóÖг£ÓõÄÊÇ90%£¬95%£¬99.73%

ʲôÒâ˼ûÃ÷°×°¡£¬ÖÃÐŶȿÉÒÔÑ¡Âð£¿ÔÚÄĶùÑ¡°¡£¿ÎÒÓõÄsigmaplot

[ ·¢×ÔСľ³æ¿Í»§¶Ë ]
7Â¥2014-04-12 10:02:04
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

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
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] µ÷¼Á +4 osbbx 2026-04-02 4/200 2026-04-08 22:52 by may_ÐÂÓî
[¿¼ÑÐ] 070300»¯Ñ§279Çóµ÷¼Á +13 ¹þ¹þ¹þ^_^ 2026-04-08 13/650 2026-04-08 22:29 by belle15
[¿¼ÑÐ] һ־Ըɽ¶«´óѧ»¯Ñ§Ó뻯¹¤Ñ§Ôº²ÄÁÏÓ뻯¹¤×¨Ë¶£¬360·ÖÇóµ÷¼Á +8 ²»Ô¸Í¸Â¶ÐÕÃûµÄË 2026-04-02 8/400 2026-04-08 20:12 by luoyongfeng
[¿¼ÑÐ] 328Çóµ÷¼Á +16 lftmya 2026-04-07 17/850 2026-04-08 18:45 by »·»¯²Ä-СÉú
[¿¼ÑÐ] Ò»Ö¾Ô¸Ö£ÖÝ´óѧ085600Çóµ÷¼Á +21 ³ÔµÄ²»ÉÙ 2026-04-05 24/1200 2026-04-08 16:47 by sunhuadong
[¿¼ÑÐ] ²ÄÁϹ¤³Ì322 +16 ¹þ¹þ¹þºðºðºð¹þ 2026-04-07 17/850 2026-04-08 16:35 by luoyongfeng
[¿¼ÑÐ] 334·Ö»úеר˶Çóµ÷¼Á +3 µ°»¨×ϲËÌÀ 2026-04-03 3/150 2026-04-07 14:49 by åÐÒ£cocoa
[¿¼ÑÐ] 362Çóµ÷¼ÁÒ»Ö¾Ô¸ÖйúʯÓÍ´óѧ +4 ÎÒÒª¿¼´ó 2026-04-06 6/300 2026-04-06 14:11 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 085600µ÷¼Á +9 ¶«ÕÕÕÕÕÕ 2026-04-04 9/450 2026-04-05 13:44 by ujn_zhuj
[¿¼ÑÐ] »·¾³285·Ö£¬¹ýÁù¼¶£¬Çóµ÷¼Á +10 xhr12 2026-04-02 10/500 2026-04-04 21:53 by bn53987
[¿¼ÑÐ] 085400µç×ÓÐÅÏ¢319Çóµ÷¼Á£¨½ÓÊÜ¿çרҵµ÷¼Á£© +5 ÐÇÐDz»Õ£ÑÛà¶ 2026-04-03 6/300 2026-04-04 21:50 by hemengdong
[¿¼ÑÐ] 296²ÄÁÏר˶Çóµ÷¼Á +21 202451007219 2026-04-02 22/1100 2026-04-04 21:48 by hemengdong
[¿¼ÑÐ] 283Çóµ÷¼Á +4 mcbbc 2026-04-03 5/250 2026-04-04 20:51 by imissbao
[¿¼ÑÐ] 280Çóµ÷¼Á +21 ¹¾ààÏþÏþ 2026-04-02 22/1100 2026-04-04 11:12 by Öí»á·É
[¿¼ÑÐ] ²ÄÁÏ¿ÆÑ§Ó빤³Ì¿¼ÑÐ +10 Õü¾ÈÆ¤ÌØÍÐÏÈÉú 2026-04-02 10/500 2026-04-03 23:57 by userper
[¿¼ÑÐ] ¿¼Ñе÷¼Á +3 15615482637 2026-04-03 3/150 2026-04-03 22:50 by ms629
[¿¼ÑÐ] 357Çóµ÷¼Á +13 1050389037 2026-04-03 13/650 2026-04-03 22:27 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] Çóµ÷¼Á +3 ÐÄÏëÊÂ³É¿É 2026-04-03 3/150 2026-04-03 11:22 by wangjy2002
[¿¼ÑÐ] µ÷¼Á +7 ìíáº. 2026-04-02 7/350 2026-04-03 09:11 by »¨ß»¹Ç·600
[¿¼ÑÐ] Çóµ÷¼Á 302·Ö³õÊÔ 0854 +5 Áæ¿ÉÀÖ 2026-04-02 5/250 2026-04-02 17:53 by ±ÊÂä½õÖÝ
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û