Znn3bq.jpeg
ÉÇÍ·´óѧº£Ñó¿ÆÑ§½ÓÊܵ÷¼Á
²é¿´: 5511  |  »Ø¸´: 3

baobao007

Ìú¸Ëľ³æ (ÕýʽдÊÖ)

[ÇóÖú] ÃÉÌØ¿¨ÂåÄ£Ð͵Ä-RÓïÑÔ´úÂ룡£¡£¡£¡£¡ ÒÑÓÐ1È˲ÎÓë

×î½üÏëÓÃÃÉÌØ¿¨ÂåÄ£ÐÍÀ´ÑéÖ¤½¡¿µ·çÏÕÄ£Ð͵ÄÓÐЧÐÔ£¨ÈçÏ£©
v=rnorm(10000,2,0.2)
b=rnorm(10000,70,7)
c=rlnorm(10000,4.6,2.3)
f=rnorm(10000,0.03,0.003)
for(i in 1:10000){
m=c*v*f*0.001/b}
£¨¼ÙÉèm¾ÍÊǼÆË㽡¿µ·çÏյĹ«Ê½£¬ÏÂÃæÏëÊä³öÖÃÐÅÇø¼äÔÚ5%µ½95%Ö®¼äµÄ¼ÆËã½á¹û£¬ÔõôдRÓïÑÔ´úÂ룡£¡£¡£¡£©
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

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

hukaimmiww

Í­³æ (СÓÐÃûÆø)

N <- 9999
m_sim <- rep(NA,N)
for(i in 1:N){
  v=rnorm(100,2,0.2)
  b=rnorm(100,70,7)
  c=rlnorm(100,4.6,2.3)
  f=rnorm(100,0.03,0.003)
  m_sim =c*v*f*0.001/b
}
head(m_sim,10)

ÕâÑù£¿
2Â¥2019-08-22 20:39:58
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

hukaimmiww

Í­³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

N <- 9999
m_sim <- rep(NA,N)
for(i in 1:N){
  v=rnorm(100,2,0.2)
  b=rnorm(100,70,7)
  c=rlnorm(100,4.6,2.3)
  f=rnorm(100,0.03,0.003)
  m_sim =c*v*f*0.001/b
}
head(m_sim,10)
3Â¥2019-08-22 20:48:14
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

hukaimmiww

Í­³æ (СÓÐÃûÆø)

ºÃÏñÊäÈëÏÔʾÓÐÎÊÌâ  m_sim [ i ]   Ôõô»á±ä³Ém_sim =c*v*f*0.001/b  ÄØ£¿
4Â¥2019-08-22 20:52:25
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ baobao007 µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ²ÄÁÏÏà¹Ø×¨Òµ344Çóµ÷¼ÁË«·Ç¹¤¿ÆÑ§Ð£»ò¿ÎÌâ×é +21 hualkop 2026-04-12 22/1100 2026-04-14 17:44 by lhj2009
[¿¼ÑÐ] 302·ÖÇóµ÷¼Á +10 ·²ÓïÆíÔ¸ 2026-04-08 11/550 2026-04-14 16:50 by jiangguiquan11
[¿¼ÑÐ] ʳƷÓëÓªÑø£¨0955£©271Çóµ÷¼Á +15 Éý¸ñ°¢´ï 2026-04-12 16/800 2026-04-14 13:18 by ¸¡Èô_°²Éú
[¿¼ÑÐ] ¿¼ÑÐÇóµ÷¼Á +12 ×ÓľÄÅ 2026-04-12 13/650 2026-04-14 01:19 by Íõ¬Bè±
[¿¼ÑÐ] ÉúÎïѧµ÷¼Á +11 СȽҪŬÁ¦ 2026-04-10 13/650 2026-04-13 11:46 by µç»¯Ñ§¼°´ß»¯
[¿¼ÑÐ] Çóµ÷¼Á288 +7 ioodiiij 2026-04-10 9/450 2026-04-13 08:33 by Hayaay
[¿¼ÑÐ] ¡£ +10 Àî¶àÃ×lee. 2026-04-12 11/550 2026-04-12 22:58 by yuyin1233
[¿¼ÑÐ] 339Çóµ÷¼Á +8 hanwudada 2026-04-11 9/450 2026-04-12 15:36 by laoshidan
[¿¼ÑÐ] Çóµ÷¼Á +16 ÕÅ·¬ÇѲ»³´µ° 2026-04-10 17/850 2026-04-12 13:58 by °¾Ò¹³É£¡
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÖÐũ΢ÉúÎ288·Ö£¬ÈýÄêʵÑé¾­Àú +11 ´úfish 2026-04-09 11/550 2026-04-12 10:21 by Hayaay
[¿¼ÑÐ] 070300»¯Ñ§279Çóµ÷¼Á +19 ¹þ¹þ¹þ^_^ 2026-04-08 20/1000 2026-04-11 20:43 by stoner78
[¿¼ÑÐ] 284Çóµ÷¼Á +11 archer.. 2026-04-09 12/600 2026-04-11 20:23 by À¶ÔÆË¼Óê
[¿¼ÑÐ] µç×ÓÐÅÏ¢279Çóµ÷¼Á£¬ÓÐÊé¶Á¾ÍÐÐ +8 wwwooden 2026-04-08 11/550 2026-04-11 20:22 by cq2548
[¿¼ÑÐ] ÖпÆÔº×Ü·Ö315Çóµ÷¼Á +8 lallalh 2026-04-09 8/400 2026-04-10 19:30 by dick_runner
[¿¼ÑÐ] 282£¬µçÆø¹¤³Ìרҵ£¬Çóµ÷¼Á£¬²»Ìôרҵ +9 jggshjkkm 2026-04-10 9/450 2026-04-10 14:55 by ÄæË®³Ë·ç
[¿¼ÑÐ] Òѵ÷¼Á +18 ²ñ¿¤Ã¨_ 2026-04-09 19/950 2026-04-09 22:10 by ²ñ¿¤Ã¨_
[¿¼ÑÐ] ¿¼Ñе÷¼Á-²ÄÁÏÀà-284 +28 Ïë»»ÊÖ»ú²»Ïë½âÊ 2026-04-08 28/1400 2026-04-09 20:08 by µ¹Êý321?
[¿¼ÑÐ] »¯Ñ§¹¤³ÌÓë¼¼Êõרҵһ־Ը¹þ¹¤³Ì 291·ÖBÇø ¹ú¼Ò¼¶´ó´´¸ºÔðÈË ÓÐÒ»×÷ÂÛÎÄ +13 Emmy~ 2026-04-09 13/650 2026-04-09 14:47 by onlyÖÜ
[¿¼ÑÐ] Çóµ÷¼Á +3 ÖíÈâ¶Õ·ÛÌõcc 2026-04-08 4/200 2026-04-09 10:05 by ÖíÈâ¶Õ·ÛÌõcc
[¿¼ÑÐ] 085404£¬334·Ö£¬Çóµ÷¼Á +5 sunjie8888 2026-04-08 8/400 2026-04-09 07:26 by sunjie8888
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û