蒙特卡洛方法matlab程序

hattrick110

贴一个蒙特卡洛方法的matlab程序，供大家使用。
祝大家比赛都能取得好成绩
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% Example Monte Carlo Simulation in Matlab
% Function: y = x2^2/x1
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% Generate n samples from a normal distribution
% r = ( randn(n,1) * sd ) + mu
+ g0 f$ s7 |1 `% mu : mean
% sd : standard deviation
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% Generate n samples from a uniform distribution
, L- p" V9 l% n+ C$ p! `* g/ h% r = a + rand(n,1) * (b-a)
. d3 ~! n6 B2 Z$ A: O7 }% v% i% a : minimum
/ \9 H6 v8 x: R, a! z# {# B% b : maximum
( L. v# M, @9 i( i3 M* X6 On = 100000; % The number of function evaluations
% --- Generate vectors of random inputs
2 u3 k2 Y* S' T1 A: X% x1 ~ Normal distribution N(mean=100,sd=5)
% x2 ~ Uniform distribution U(a=5,b=15)
9 z" \! r: `! I  i: R, u, F8 ]x1 = ( randn(n,1) * 5 ) + 100;
x2 = 5 + rand(n,1) * ( 15 - 5 );
% --- Run the simulation
% Note the use of element-wise multiplication
y = x2.^2 ./ x1;
% --- Create a histogram of the results (50 bins)
hist(y,50);
- Z; n* F$ k/ o2 v% --- Calculate summary statistics
y_mean = mean(y)
y_std = std(y)
  u" n2 p% z1 g$ J: n) By_median = median(y)

mma

多谢拉！！！！！！！

sjtucat5

thankyouverymuch

tzhggx

顶啊！不错啊！

BigTou

谢谢啦...................

rever99

个盲目反卷积程序是用模拟退火法做的，想请教

jafy2009

哈哈哈。。。谢谢！！！

eyehappy

thank you!!!!

cherry_s1218

看看。。。。。。

shuxinjian24134

xinga!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!