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。
' l9 @* G: ^3 e) B) @0 ^% Q, ]祝大家比赛都能取得好成绩
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1 r" w* m" z7 x7 i4 \1 p: B& q% Example Monte Carlo Simulation in Matlab
% Function: y = x2^2/x1
%
% Generate n samples from a normal distribution
- N. D2 g6 b1 x2 u* [% r = ( randn(n,1) * sd ) + mu
. l+ |7 W4 w8 i2 v8 _8 S: j8 R( h% mu : mean
% sd : standard deviation
%
% Generate n samples from a uniform distribution
% r = a + rand(n,1) * (b-a)
; v" Q/ e; B6 x5 t% a : minimum
! G% C* ?4 Q) c% b : maximum
1 f% O/ p4 {) p! \, yn = 100000; % The number of function evaluations
% --- Generate vectors of random inputs
% x1 ~ Normal distribution N(mean=100,sd=5)
% x2 ~ Uniform distribution U(a=5,b=15)
x1 = ( randn(n,1) * 5 ) + 100;
: A1 U6 q/ x" b, F4 h0 q" Wx2 = 5 + rand(n,1) * ( 15 - 5 );
% --- Run the simulation
% Note the use of element-wise multiplication
5 Y: q/ \; S- K% ]% Yy = x2.^2 ./ x1;
) y, c8 H* n( J& u6 `9 F% --- Create a histogram of the results (50 bins)
hist(y,50);
. H" ~, L. O1 l2 I% --- Calculate summary statistics
y_mean = mean(y)
y_std = std(y)
y_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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!