??? Undefined function or method 'PathLength' for input arguments of type 'double'.) W5 U* r' T+ h: z* v+ i# y) k
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Error in ==> Metropolis at 10 ! i* w: V e y8 n7 GR1=PathLength(D,S1); % _9 j/ O' b7 H" F. S1 Q) O这是出现的错误。; E3 n) N4 f+ X0 K& v4 Y& q
' N& o# Z$ x2 c* e, N代码:function [S,R]=Metropolis(S1,S2,D,T)7 R: J& y8 ~$ A) ^
S1=[1 4 5 3 2]; ; }; ~1 P: _. W, U- r3 e* N w9 {S2=[4 1 5 3 2]; , E7 F: R- O% ID=[ 0 116.8118 144.0139 35.3836 146.6322/ w1 `- H j6 q/ Q% x
116.8118 0 177.7104 151.7267 263.42741 w7 Z" u" Z1 S2 @' m/ m% k2 \) h
144.0139 177.7104 0 157.1751 211.68143 a, S: S% i% n9 a
35.3836 151.7267 157.1751 0 112.25426 F, D2 `( N- Q* p
146.6322 263.4274 211.6814 112.2542 0]; ) N# N. q' z8 U1 ` |T=1000;- j2 W2 n% d+ |/ R
R1=PathLength(D,S1); 8 P! s {. l- x; o+ o& o. ^+ q6 MN=length(S1);; \; |" U T3 f& K8 I. K3 n$ B% K
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R2=PathLength(D,S2); C( M$ U& X/ l' S
dC=R2-R1;1 \) m* ]# G9 G1 q/ Q" P$ {: w6 F
if dC<0* }" m/ Y9 N! B( t6 L! q1 ~# l
S=S2; , y% d. ?* i3 O9 C1 ] R=R2;2 K9 _; X( f6 z8 ?8 n
elseif exp(-dC/T)>=rand ( y8 g: r1 n) T2 \+ }* q+ p S=S2; 6 o' O2 I3 o/ `$ d) r7 i4 B9 i R=R2; ! R/ f: j' Q3 T- W5 ~( e* V# Lelse# W4 z0 j& L" v; [
S=S1;9 e! b+ z1 C' z
R=R1;9 [5 m+ B$ w- X7 r$ g
end