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[交流] 关于turtle的使用问题

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发表于 2008-3-14 16:14:39 | 显示全部楼层 |阅读模式
我将customer设为 turtles-own,初始值赋为-1,为的是当turtle遇到同伴时就将其中的一个turtle认为自己的customer,然后进行交易,如下:$ p" Q& s) W- j
to do-business
* M/ o& ^; b0 B% E1 x: b rt random 3603 j+ V9 q; q3 R+ F# j: Y
fd 1
& o* g" h# D# W8 U/ u ifelse(other turtles-here != nobody)[5 D6 f% X) g. C/ y6 b
   set customer one-of other turtles-here ;;这样一来,customer不代表了一个turtle吗?但在运行时出现了问题.
7 R$ \+ d8 ?9 ^9 o# L9 i   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    : [8 ~* F) K& r
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
. x" e7 n7 s7 W2 o. v, b- g   set [trade-record-one-len] of self length [trade-record-one] of self
6 O5 I/ o6 D' c   set trade-record-current( list (timer) (random money-upper-limit))0 G( ]1 d4 a1 h& {- C8 b8 ?

' C; K" E9 V3 G# P; C* G( t问题的提示如下:) a$ F* D4 y, B3 V8 V

$ C, d8 g" w: K; I1 u( eerror while turtle 50 running OF in procedure DO-BUSINESS' l: ~/ H1 r, t# Y" y
  called by procedure GO
. G. S& M$ q$ }$ B- V  V8 D* z5 UOF expected input to be a turtle agentset or turtle but got NOBODY instead.
" k2 y2 J' l# k, W" x4 K
(halted running of go)! z& j2 X$ R9 D8 p8 g4 Z  K

" F/ ^! @9 W1 B: W8 {这是为什么呢?我看到一些netlogo中自带的例子也是用这种方法来找turtle的同伴的啊?期待高手解答~~
0 v: j0 w9 f: U0 K( x$ S3 J另外,我用([who] of customer)来获取turtle的编号的方法对的吗?如  set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    中.

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发表于 2008-3-17 17:34:20 | 显示全部楼层

资料不全

你把你的所有程序传上来我看一下,估计不是大问题。(南京大学)
 楼主| 发表于 2008-3-18 13:10:54 | 显示全部楼层
你好,这是我现在正在写着的程序,以上问题就在其中,请多指教1 ]% h! {  E8 W% r" G3 d
globals[
. x( W  F5 R( k$ l& r2 T- m& }xmax
. `3 e# K9 @4 e7 j$ J% K- ~# W$ Yymax2 ?3 H4 |3 a5 L5 F1 X7 }7 I
global-reputation-list
4 v; M3 ~% V/ I9 _  _8 L
1 n9 `( n$ U' I, w  Z. Q+ ~# L;;
每一个turtle的全局声誉都存在此LIST
0 H4 u/ t! q: a% K4 t. {- Mcredibility-list
: D$ E% q* N% u: @2 B) F;;
每一个turtle的评价可信度  x- q3 l- L* P0 k0 y
honest-service
& h# f* F" k" [: t1 Y: v. Cunhonest-service$ R+ I5 k; W5 f1 N7 b
oscillation
* c$ j  t& D( Irand-dynamic
% L, j8 m# O! V]
8 T4 J3 N9 }% z
5 i$ k7 m) i% x' m5 sturtles-own[/ N9 {( i6 l5 S6 U8 @, b
trade-record-all6 X1 r3 s* I, L" u' S4 \2 g1 J, @5 m8 d
;;a list of lists,
trade-record-one组成! A6 Y, l/ E% P0 ^1 y  q. D4 t
trade-record-one, }0 h" t4 @( V* ~- u% T2 T6 }* u" P
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
2 y5 |% N9 ]! m5 P) S4 {" \( c! M( I6 r1 [$ w$ Q
;;[
对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]], w& e0 L1 A  d) o5 v
trade-record-current;;list,trade-record-one中的这个list,作为暂存用,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]8 B& z2 p( K9 j, C; Q/ ?
credibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list
  g% _* t, T2 p" D4 fneighbor-total
1 h3 l9 u) @# t6 z;;
记录该turtle的邻居节点的数目
5 I. n3 ~7 R& I/ Vtrade-time
/ ~% w0 e% M& E) q;;
当前发生交易的turtle的交易时间
" I/ p1 t9 E) w: A- T6 m) C( Nappraise-give
& f5 f  {  w! g9 Z;;
当前发生交易时给出的评价& A) p* U. l, w; k! L
appraise-receive* F4 b, |+ i1 a" v" y' s. k
;;
当前发生交易时收到的评价
( {. K% e- j5 I8 q2 l3 r0 _appraise-time
3 a, ?* _2 N% A% T;;
当前发生交易时的评价时间
7 r3 E0 f7 N" W: V% `* E+ j( n( @local-reputation-now;;此次交易后相对于对方turtle的局部声誉
5 u9 ~) B. v5 h! b. P2 e/ |7 Ftrade-times-total. B( F9 s- m' f
;;
与当前turtle的交易总次数
0 S/ h: B& x/ \- Etrade-money-total; W* F" b: {7 a
;;
与当前turtle的交易总金额; ?$ z6 m8 W* d+ X5 T
local-reputation
6 |8 g2 U8 V, R0 M# K2 Cglobal-reputation
  s: j2 p& a; ^  @credibility/ k6 H+ a6 S1 v% p& Q' ]
;;
评价可信度,每次交易后都需要更新
; ~2 Q# h5 y3 r8 {- M. V- Icredibility-all# G5 |/ i/ h6 w2 u0 `
;;a list of lists,
credibility-one组成。[[1j的评价质量的评价][2j的评价质量的评价]……[ij的评价质量的评价]……],其中一共有people项,根据
! {$ F2 c  c  S
+ q' l' n- E" S/ C5 J4 n  c;;turtle
的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.5
5 V' l& ~; r. ?+ s! ?" d- Tcredibility-one7 l8 U' a: ?  `
;;a list [i
j1的评价的质量评价,ij2的评价的质量评价……],其中一共有people2 }) u; K# ^1 J: |( F/ t0 U- y
global-proportion  u  v( P' b5 o4 b+ a* S6 B
customer
7 Y/ u0 S; `6 E9 }9 |* _customer-no2 C4 G) A* |! A" L8 c$ i4 H( a
trust-ok
; J/ S  y- [& {) s% i6 O  @trade-record-one-len;;trade-record-one的长度
; b5 {# u5 r* F, y& {7 h) g1 Y: [], [/ H$ I% R" H- E

# I2 o& p, i$ I( n: l* I;;setup procedure
: n3 t% I4 c8 l& f8 E
3 f% c5 f) x' ]& C6 Q8 uto setup
5 E% B- _7 T! ]( H6 b9 {7 ~6 D8 Y* @
' G1 s3 s2 _9 Zca

: |8 c) C/ V. l; \* v! p
6 a3 R- [( E8 S" yinitialize-settings
8 z7 ?7 [# U3 ]( T0 W/ r

. _1 n. L4 n, Z6 d% ccrt people [setup-turtles]

4 R4 A; C- H, B; Z1 W5 d0 R) L+ c! B
reset-timer

" M- m3 T1 N* D1 t- \8 D+ s7 V4 C0 G0 o* e9 R4 a) G
poll-class

4 j: O  C% e5 n; P* G* r' H' ^; A6 u2 ^5 O+ Y* p; j7 ~
setup-plots
5 w- A3 M5 n# o. m5 w% b' h

5 h! ?  h3 Y( W9 Z2 @1 @do-plots
9 [3 N! Z$ m/ b9 @; B, B; S$ x5 b
end
& b6 U8 F8 h3 A/ @2 W0 C3 _1 i; N4 E9 B; c
to initialize-settings, |; e6 a1 _  Y2 j
' a* T; }- X/ }" P
set global-reputation-list []
5 s3 m& e3 n* M0 v/ T9 z

# s! c( {- r5 N, A; Iset credibility-list n-values people [0.5]
9 ?; Y0 l9 Z1 t0 ]; o
* h" M- ?* [, z& ^3 t5 F9 Q# v
set honest-service 0
+ a% y# m8 d, f3 _' M4 f

" i; P& p/ w1 Z, u( Bset unhonest-service 0
8 c3 C, g' S6 w' E: Z: q' B

5 P1 }6 M, f; M% J, u& xset oscillation 0

/ v, f! I/ G+ z' F
- p" ^8 s' {* u9 ^% n* Bset rand-dynamic 0

6 y/ ^  |( ~) N9 \* W) t* tend" K+ ?! b' j- A" C6 w: C

! H. g- C/ x% X3 J$ N5 \. i- pto setup-turtles " U" M4 w) a8 M: r
set shape "person", E7 e% k. |7 W% N) G* [
setxy random-xcor random-ycor
1 Q; |( [4 R4 Q* Cset trade-record-one []" ^9 g. e: g; f
! X1 `& c# x. P% m/ u/ R
set trade-record-all n-values people [(list (? + 1) 0 0)]
& H: O# w( p; m( |6 u
  E+ J; d1 R2 p
set trade-record-current []
/ i2 P7 X2 n* ~+ b! d8 _7 iset credibility-receive []
/ f5 A! i0 J. W3 Q+ m% [: Dset local-reputation 0.5
) h. P0 a1 `) s% S9 ?set neighbor-total 0& ~2 J& p. D: U. r2 b8 x
set trade-times-total 0
: z, q- e( ]* {1 n2 P( z5 U% U/ fset trade-money-total 0' H1 k" u& v3 j6 M% W- T" ?
set customer nobody
2 W0 d+ J3 S9 ^set credibility-all n-values people [creat-credibility]
% x" S: _, {: X8 xset credibility n-values people [-1]
1 m2 \9 x( z* E' }; }+ h- E0 Tget-color
. i7 c1 ^! f4 V7 _& ^5 Y
0 g. R0 w5 s& y4 N  O: n
end
0 P# k( h3 D& A# I  M" Z. }2 Y* n% x7 E* J8 K; m' ^
to-report creat-credibility
* w5 ?' G+ E& Q0 i; N- ~/ Wreport n-values people [0.5]6 {! E% n% w! _9 H8 Z$ {' y. u
end
4 N2 L/ ^4 V% [. L$ [0 [
, n6 a( O3 N$ }! }3 ]to setup-plots: _6 P- B- H) A! P1 X! b
% @1 @; M: m, g1 V9 a& L
set xmax 30
# ?. C6 Q% D* l  r# R5 j8 b2 ~
' g; r* N& V& u6 m/ q' r' P
set ymax 1.0
& l- F! t. ~% u9 x6 y1 Y$ b8 U

, l, S( B! Q3 w- j9 `clear-all-plots
/ d8 m3 w$ T$ j. `
( l, V; m$ H9 j# [+ ?( W
setup-plot1

; ?/ L! G8 i- r9 s3 {* I7 y! _7 R- y6 {+ f7 A" c& i' U
setup-plot2

/ w/ f7 B; k4 A6 X
3 L$ E5 G5 i, }* Gsetup-plot3

/ W5 ?3 Y! X: y# G' E) H, |9 hend3 [2 _9 }* G6 G
' ?/ _1 @0 `( {( z, S
;;run time procedures
- _$ m3 e4 o% G; v* f: V5 I
/ {6 ~4 x$ O" A& Q, {to go
) T2 R( i, H+ M
/ c* b0 }; ]& m9 m" d; Uask turtles [do-business]

% d3 }2 y  X7 t' [% Dend" y" G8 _9 w/ c' _: B+ e

( M& }, B3 K  ~" u* a. Xto do-business
& P+ Q7 ?/ S( V3 J2 ^
, |7 A  P# K. d- i. P  ?
/ m/ n0 n9 k, [% f% K" ]+ @0 ]
rt random 360

9 Y) `/ b. f8 b9 c! A% c1 N1 L+ f2 I% Y
fd 1

# m0 M. p" p0 t$ c3 j! y+ j
' g" [9 p4 ?" ~- }9 d& F  Rifelse(other turtles-here != nobody)[
5 j( y# q2 K) q" k  D: I

) I+ a9 [5 C) y/ X7 m1 U, g3 Jset customer one-of other turtles-here

; x$ ]9 U* O6 y% V. C! A7 X6 \6 R+ _- h3 ~# V( Y! L* E
;; set [customer] of customer myself

/ G. C. ?( d, u3 x8 h* V6 L4 B6 W9 p. G; }7 w
set [trade-record-one] of self item (([who] of customer) - 1)
0 n& l8 h  V- t; p[trade-record-all]of self
  A, |2 w  ]- W# L$ N! I$ l;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

; T' T( I& T# o
& V2 S7 r1 G+ w0 Fset [trade-record-one] of customer item (([who] of self) - 1)
# g8 Q9 Z6 D4 _+ A* u* c[trade-record-all]of customer
. q: z) k8 y  j  a$ J- ^5 F, X. K7 O
7 t* [9 `' O8 O8 u1 P
set [trade-record-one-len] of self length [trade-record-one] of self
; K) g) y' |# m  j7 E% p/ L6 b

& H4 Q! M6 o1 g( j* `set trade-record-current( list (timer) (random money-upper-limit))
. |! F) j6 l1 @+ |' ?) ^+ I

! d9 g3 m6 M7 F8 hask self [do-trust]
2 ?1 S4 Z3 |  S- r1 V;;
先求ij的信任度7 @; e  @( h: ^  K2 w

" w7 S. h- t! N+ N) z+ m# wif ([trust-ok] of self)
5 d1 m2 o- g5 R# m  I. @+ r  C! k;;
根据ij的信任度来决定是否与j进行交易[
! |3 T5 d1 P4 k6 ?$ Yask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
6 v1 x0 j/ R7 n. x- I. u; Y7 [, v5 Q' H1 c6 S8 o  f
[

2 u$ R. h- j9 ^/ F- E2 K; j0 c3 p& F# y" \
do-trade
' }- }8 s3 ^1 @$ n6 W+ [

! F1 @3 P5 o6 \" a: \5 V/ Lupdate-credibility-ijl

4 v3 D' n: ^  _+ f, ^2 ]4 c% K
( ?7 a! B. {- T; ^# Qupdate-credibility-list- g# h) n  K2 i' w6 q$ e

$ e' r4 x3 R8 T" O5 P9 ^: {: Q1 B% {& K2 @/ Q: D+ v
update-global-reputation-list
, ?, o+ C  a7 ?3 {" k

1 L% b* o$ l1 I+ S) upoll-class

! I7 J4 j" y( l+ l. k' N+ x3 {' V" E+ K
get-color

) n( X, l- Y1 z; `5 N7 n+ f; r
% F* t/ A' [) Q]]# k/ g( c$ n+ O# T+ m9 G- B1 S
2 t- {$ q; M  B+ w
;;
如果所得的信任度满足条件,则进行交易0 ?  e; u( P2 s

3 s: K9 O4 U, V+ N$ S[

) q0 F- I2 }$ ?
; ?' Z) M" B: U% O7 k+ Qrt random 360
, H: z6 j& n4 B1 q6 I' Y7 G. X

/ [% Y' G6 Y+ V8 wfd 1

4 j' ~: v$ V3 b6 \1 W$ A  c
5 n) S( Z9 q, }1 X- i; E; g/ e]

, {8 p6 n; \3 N( d% |& Y( q
& O6 J- D; [( S, uend

0 j3 r# ]  K( ^9 f1 u1 Z' g* x; g9 O# Z# k4 ]1 P& g& W
to do-trust
2 q" s2 b7 `* ^set trust-ok False
6 q6 ?% }2 w% Z# ?9 l4 f  v# ^. t3 q8 k. H4 U, C7 R  o+ D

+ J' L  a: V8 P9 @let max-trade-times 06 {) q4 _, a3 f( e5 V+ O. P
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
# v7 Z* p2 e9 u7 Y' q, L' ]let max-trade-money 0. W: @  c, F; ?+ t3 C6 G
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
8 k; D: |! b3 }4 N2 Alet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
2 {- P* B. @) ~( E: a# W- p! [+ e. p) A& ^

1 u3 ?/ @: N2 d( mget-global-proportion
9 w+ f& R7 F6 b4 qlet trust-value
+ N- n- F% J* c/ g9 G- L- B' W- ^- _local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)

* Z- D) }* J+ N% x7 v" cif(trust-value > trade-trust-value): }' h5 P) {- \
[set trust-ok true]: H8 w7 w. F4 a, g; Y; |
end
& y' y" b: b$ k6 N5 E
, \  |& P. z" W. @6 _  Hto get-global-proportion
* V3 d' M! n* i8 `7 Zifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3); [* ]) B; i, G# i5 Z
[set global-proportion 0]% I0 Y2 _1 u3 `" A* B& Q
[let i 0
' y6 m* N/ [& D4 klet sum-money 0
" Q( _- x2 u2 N; _" J: Qwhile[ i < people]; M; ~/ K' B2 }; {4 O& X
[7 A- _( l+ Q; S& N+ g. L& |. Z
if( length (item i
/ \0 [: G0 L: G[trade-record-all] of customer) > 3 )
) @: B0 {; l' V- E* M: K
[3 g( x( z8 x" u. F9 s
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. T% c3 |4 i* x4 o) h" a, n( h]
! m; Y* c5 i9 d. H. }6 m]( b5 ~1 ]* g" K- k1 Z
let j 0
, P& t) B5 g9 n( ~3 Llet note 05 [8 ^, a- J! Q1 A3 v4 A3 r
while[ j < people]7 }8 E' Z. O6 j' Y- a2 W* m/ M
[
  w$ i9 }, _; q: l9 H) Zif( length (item i
! t, e5 Q9 D) @1 z' V- L+ B[trade-record-all] of customer) > 3 )
. G5 P' d4 _  I6 I* m, K$ i
[5 ^* w: e& K6 z1 c
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# m1 e4 P0 j6 s, R% T2 D[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
0 u$ q7 ]: D. K[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
) o( ^! l! T6 T! P]: Y, z: F* p; c8 G, g- Z
]
  g% U: s. U, V' r3 Hset global-proportion note
  A: ], ~/ e; u( L' ]" A]2 b$ ^/ J% n* K) d! {
end
3 U5 h- a- f' `' F5 K5 |) p6 u( k/ A+ U7 {7 K
to do-trade
8 w9 k/ K! |0 u2 H) t- t8 x;;
这个过程实际上是给双方作出评价的过程# U/ k% Q9 R. U
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
- W' A- p. \5 l4 B7 K; _- {& a9 Pset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
7 t% H/ Q0 [7 {0 m4 m  |% vset trade-record-current lput(timer) trade-record-current' s2 k+ O$ d: i8 F
;;
评价时间
, ]; s8 m. t; |; lask myself [
- ^9 t$ O5 k+ h: K$ n; Rupdate-local-reputation
6 O5 w( V0 J& W4 L1 dset trade-record-current lput([local-reputation] of myself) trade-record-current
7 o* F3 P6 q. e]
' T  b" L, s; A9 E% xset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself% K9 P! t7 K9 B# O4 m- F: ~0 V
;;
将此次交易的记录加入到trade-record-one! {2 q* J7 z" z% n
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)+ o4 J8 u% T2 d- y8 J# r5 u+ K7 f
let note (item 2 trade-record-current ); L* y1 o* q4 F( E4 _% h
set trade-record-current
% J" t' O( E4 |. {" g(replace-item 2 trade-record-current (item 3 trade-record-current))

' n* `& P2 x; _$ w. M' oset trade-record-current# ~/ r& r7 C5 w8 ?1 Y6 r, j' Y
(replace-item 3 trade-record-current note)
! u: z7 h% D, v+ @' B$ B4 q. x/ \3 o. c+ E5 W  X  g2 n) Q
$ L1 Z3 {6 \6 H; W0 V9 `5 J& L
ask customer [
  I5 s( q, K5 ], H0 k/ Lupdate-local-reputation  s  h+ ?; ^9 B% w1 h5 F8 A2 I
set trade-record-current
, C/ l9 X( d$ R, l, V9 j(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 ^  @3 x5 H* m( T5 @( z: i
]( \6 W$ k3 i* I5 k2 e+ Q4 O9 K
5 x2 `& a/ f! N7 ]8 q3 c. _2 v

( s! _4 A# o/ R) @% Sset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer1 M/ _: W7 D7 u7 r: j! l
$ T6 ]$ v8 u7 e8 F6 k  O4 h. F
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)); `2 k8 V; Z( l9 C% t
;;
将此次交易的记录加入到customertrade-record-all
- i5 K0 W' G2 s/ aend
, M- p8 |$ l8 T: _" g8 P3 Y  R, S. _8 [! ]+ L( C
to update-local-reputation
% {0 n9 q- L" K! D; Xset [trade-record-one-len] of myself length [trade-record-one] of myself
, [/ n3 [, s3 ~% ]
- ], z; [! J  X: h4 p$ ]4 Q
1 A0 d- q' R9 A;;if [trade-record-one-len] of myself > 3
3 N+ L* Q: v" @7 l) M
update-neighbor-total* U; z$ Z% x) U* j% ?. a
;;
更新邻居节点的数目,在此进行
4 B# v2 [$ M' Z- ~: S( b; `% Zlet i 3+ s5 a5 r) o$ i* R3 J
let sum-time 0
+ p* }  L+ j5 @6 Ywhile[i < [trade-record-one-len] of myself]; l7 c1 i3 q& h! I3 I/ E# E
[; _. c* ?  s5 [+ t
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
7 C1 d% {: g4 ^set i
0 q  H; L! {; I+ h, S, `/ ~( i + 1)
1 f, o5 y- \1 T# m& _9 t
]
8 o; j& x" V- U& Q' J4 a# ]8 llet j 37 B/ o! y8 \. l5 d! M% q& Z+ v
let sum-money 0
, V- G3 v7 s( f8 U; Jwhile[j < [trade-record-one-len] of myself]5 j$ f: _* |( R2 P, ~0 |6 A- T
[- J  ~, w. m9 j' Q3 A. q( o
set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)- D" _) k7 L* Y
set j
8 y/ q+ I; h% K# \- ?" j, @( j + 1)

, |0 J0 T$ g8 s# D0 L7 \]
$ o. X' O$ p$ @9 q4 C; I6 x, f& j  Llet k 3
7 l$ O8 C+ _; D- i( x& x6 alet power 0( c9 X* S0 l# ~( r, h% r
let local 0$ x6 o/ A- k' G( u4 X
while [k <[trade-record-one-len] of myself]7 {' o* l: t7 E3 f
[
1 h" S7 n5 a. f/ }0 {. `: n- R$ qset local (local + (item 0 (item k [trade-record-one] of myself)) * (item 1 (item k [trade-record-one] of myself)) * (item 2 (item k [trade-record-one] of myself)) / sum-time / sum-money) 1 I3 [" P( W' |: d  E+ O2 J( X8 [
set k (k + 1)! Y- d9 l" r# j
]4 a' M2 k, {& Z3 H& v5 }
set [local-reputation] of myself (local). b- ^+ X/ J3 P/ R
end' h8 @  c2 |' Y) V  c2 m
1 b; o; X+ i( U1 }- Z2 T! R3 w  b
to update-neighbor-total% Q5 M/ [7 V) l
1 G8 t9 N) J: d+ Q9 x
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
+ p) W6 O# z/ y9 z) w/ u4 y# s  {: x7 R5 ?  c. Y# u( w5 v
0 B5 d! p6 @$ q4 H7 T- \
end
9 O+ E3 m1 U" Q" \( b8 r* ^
4 j) P6 k- f# Y+ xto update-credibility-ijl
/ j' G6 U3 c  L
: `  v  g; @' G- E;;
思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。9 V* Y" S, _& i6 Y( Z
let l 09 n' S5 \) F$ s1 r# K9 y
while[ l < people ]
; Q% _* `% B0 f3 r;;
j的邻居节点的trade-record进行扫描,以对j的邻居节点的评价质量进行评价
7 `% I6 D/ @  X. {: |[. B6 z* P' i' d; p
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
$ h+ d  U; p  ^+ o* x& ?if (trade-record-one-j-l-len > 3); k* ^$ t* `3 |
[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与ltrade-record-one# M% A3 ]6 X! z5 V9 l+ \
let i 3
: W/ F' ^4 V* Z1 c) [let sum-time 0
8 q3 q( g/ m( K( Y5 M. Owhile[i < trade-record-one-len]% R9 K1 G0 Z7 _, V7 [3 A9 b
[
1 i2 r# E* p+ Wset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), `) W& Z" }. \2 `
set i* T9 l' x4 o1 u; e
( i + 1)
" D" Y/ H0 z) L3 Q8 w
]
8 f1 S8 V' k! Y( |let credibility-i-j-l 0
/ H: k7 N9 L$ k) b- a;;i
评价(jjl的评价)+ U. m0 N' U  j- J0 u, P% g
let j 3
- X- @! X3 {/ j7 j+ Plet k 4
& `1 h; ?# [, W% ywhile[j < trade-record-one-len]
0 v" A) L$ W- F- M$ E- b  s[
% v) g2 [2 Z# i" p7 V/ C' Lwhile [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在ik次给l评价的这一时刻,l相对于j的局部声誉+ [1 e& _; S. C
set credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)
) `* ?0 ]. m7 a8 M6 }set j7 f; l2 Y# r) K( A
( j + 1)
! C; O& w& V: p; X! M$ {! ?! {7 B
]8 q$ y, \6 }5 c+ U1 K* Q
set [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l ))
. P5 P; `6 z& x& r
. h, G+ S; `2 }, B$ G/ T) H

# y, D9 f' A) T9 y' h1 h, glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
" X" K* g. V( J* `;;
及时更新il的评价质量的评价( n, b9 i; ^" w, G# r
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 @; L0 U8 l( B$ A: t
set l (l + 1); _1 k/ |. y) x# H4 T
]
6 p* a3 n8 W1 D/ ]( k) uend% d6 y2 ]4 p' {! B( d

9 {1 p: t* k7 kto update-credibility-list
( C  }& S# |) Y7 w0 i5 s* nlet i 0
% m" B5 h* A: v" W) m8 H. I  bwhile[i < people]$ a  o0 C' d4 k* k
[3 q+ c& E% |( j/ q$ P) U  d
let j 0
  l) g$ {4 }( k  _let note 01 F6 `; G, D+ o, b8 }
let k 0: U) y/ _7 s( u" d* Z' z9 Y
;;
计作出过评价的邻居节点的数目
1 {1 h( [) |) U; E, dwhile[j < people]
0 F1 i$ u% G) m; x. @[* {9 p$ Q& M& t( c3 E( ], c1 G  Q! x
if (item j( [credibility] of turtle (i + 1)) != -1)
- R3 S$ t' U. ?" p: N# Z" R; r;;
判断是否给本turtle的评价质量做出过评价的节点+ ]. P  e( x- W7 C; Y5 N1 m, F' a
[set note (note + item j ([credibility]of turtle (i + 1)))
7 z2 c* }: w/ @% f  b6 N+ L" M) \;;*(exp (-(people - 2)))/(people - 2))]
$ S5 Z% e: t9 V; C( _  ^
set k (k + 1)& m9 n$ |( n1 g4 I6 [: O
]
% y- e) _* X4 ^1 S" t" Tset j (j + 1)
8 w3 z8 U3 L. O/ M# z; B$ z]
% p0 S  J7 g; U5 F5 P5 j* _% bset note (note *(exp (- (1 / k)))/ k)# b. `3 n4 @! W) B$ R- J
set credibility-list (replace-item i credibility-list note)/ N( t+ ]9 O, Z$ y( {6 }
set i (i + 1)
! p  @8 i7 q" M  t9 }5 c+ i]
2 ^  l. e; i' X+ P# `( Zend. F  ?/ j; Q* A/ e

, u2 L8 q$ |2 u6 ^- ]9 eto update-global-reputation-list
: R; Q& v, U9 t# U" h1 t4 ~: w# Xlet j 0
  I' O4 i3 L9 c( Uwhile[j < people]
& u$ H  P, N  W( k1 H) F[
9 f$ b. c" l) a: K- ylet new 0/ ~1 b4 I+ m' _8 ~
;;
暂存新的一个全局声誉
) w: u" A$ G8 w9 tlet i 0$ d1 \! c0 u6 H0 q, F, f
let sum-money 09 Z- f' q2 i% c" L
let credibility-money 0/ \1 f8 p1 ?0 H7 Q7 H( F6 q
while [i < people]
2 B1 G! c! m9 j1 b2 v( b$ I[3 h5 l5 V1 s8 N/ z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
( C9 i' |% f9 U( g) b. {! N1 qset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& Z$ |+ s/ e( H8 r. ~
set i (i + 1)
* @5 L6 r! R8 s! V* L0 e) l$ ]]
8 Z9 p8 J+ p1 O; }7 u- plet k 0
7 ^, D: a) w$ _9 R! n" w8 M2 llet new1 0
$ t# m" J; ^& {8 m7 ]while [k < people]& a2 C; y$ b$ R* ?& P% w& Z8 _3 B/ k
[
9 D# B3 Y5 u  r; d3 Zset new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)
# J8 F5 f8 V3 u) {% i& I- zset k (k + 1)
! f7 l$ i7 @- d# }]
; x# l' g8 \6 z" N% L$ pset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 j* o; p5 g7 H. \
set global-reputation-list (replace-item j global-reputation-list new)5 `, M  |% C0 N. I8 {
set j (j + 1)) W9 ^) \( v6 X8 h
]9 b# ?; y7 m- u' g$ P6 p
end4 X/ Q/ s% K! T3 j; P

" g- _: o( |' f4 B9 J9 d, e' W% P" G
# c9 b, k* R% `( |  }' Y& G
to get-color
" P7 |3 ~) }# w6 `9 A6 m  Z
: L! c4 J& Z3 g$ p! h! D0 E. Qset color blue

- \  K+ t$ ]! M6 Uend" \6 Q' ]* ~: v) w

+ z1 ]3 s  ^  N, I2 v0 Ato poll-class
0 Y$ d8 J; n1 \: |1 w. A% Zend3 L% v6 ~) v: k  G6 X; p- D6 N7 R

/ ]$ W, I/ Y- C3 N4 kto setup-plot1
* V' Y3 w1 C: u, Q# d
0 J* x7 K7 l( u- b! g$ G5 h0 aset-current-plot "Trends-of-Local-reputation"
1 l, W/ R# I! o+ h

$ Z, @! X' L% H" `, M+ Mset-plot-x-range 0 xmax

$ d. ^! ?6 r3 D' F' y% r' E& K3 _+ t( i3 ^& r
set-plot-y-range 0.0 ymax
+ P' R$ N( f/ o
end
- J9 r% I. f3 ~; R3 X0 I+ c+ W/ ^
( A# S" B8 T% z% Ito setup-plot2. i- d% j; B0 s' a8 S1 q7 v+ e

! @7 E# k! h4 z; Y+ Wset-current-plot "Trends-of-global-reputation"
) J  _+ ^5 F  U; o9 z

7 A$ c, W  n  r7 D+ Jset-plot-x-range 0 xmax

% ~; Q9 ~( `: i3 ?: c
# n; }4 @& a# H+ `! j5 {set-plot-y-range 0.0 ymax

' F, m: ~, a; ~  Pend
% R8 a, P6 z* f! z& R: z( f9 F, X' W; p8 ^# u1 O
to setup-plot3
# \  ^$ C2 ~; I1 d. C2 f4 a. W0 v& O; f, |* M% U9 p  W9 E
set-current-plot "Trends-of-credibility"
9 Y% W1 p9 n6 r) \, r% }# ^( {2 W
2 Q8 ]5 f) Q' Q7 H' j$ J
set-plot-x-range 0 xmax
: `8 K+ a' d: H- r# n- B9 W# e) n; t, B
/ I/ r$ f0 h1 P5 g
set-plot-y-range 0.0 ymax

* {2 Y- N6 ]- D8 o% qend* |3 P( p. |$ [% e  b
* u5 _( d- e4 f  E1 I- N
to do-plots
* j5 ^- e" ~7 l8 B2 \set-current-plot "Trends-of-Local-reputation"+ ]" U4 M2 I4 ?: g
set-current-plot-pen "Honest service"2 O6 i& W# D. X9 w
end  E' }+ c/ [# A( W

" F: A3 r0 x9 a; f, d. G8 Z[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ]

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发表于 2008-3-19 11:33:07 | 显示全部楼层

有点困难

没想到挺复杂的,我去问问师兄们,不知道你是自己建构的模型还是其它模型的改进,我试了一下好像setup都有问题,别着急啊,呵呵 。
发表于 2008-3-19 11:34:29 | 显示全部楼层

还有啊

发表于 2008-3-19 11:35:59 | 显示全部楼层

还有啊

能不能传nlogo附件上来,一个一个敲太累了,好长的程序啊。
 楼主| 发表于 2008-3-19 12:47:57 | 显示全部楼层
嘻嘻,不好意思啊,现在把附件加上了.0 F% Q; q3 J) L6 t6 z
# i# v9 b, z: b
这是我自己编的,估计有不少错误,对netlogo了解不是很深,请多指教,谢谢!
发表于 2008-3-22 16:55:16 | 显示全部楼层

程序公式

我问了一下,只是从程序角度来分析,是跑不起来的。如果参照你建的模型(公式),可能会有帮助,我的邮箱是wjcpcahu@126.com.方便的话,看看能不能进一步探讨。
发表于 2008-5-19 18:02:44 | 显示全部楼层

运行不了

提示custom无值,这是怎么回事?
发表于 2011-4-10 14:42:01 | 显示全部楼层
好高深
发表于 2011-11-7 11:36:13 | 显示全部楼层
为什么大部分的帖子的交流都止步于2008年,从08年到现在好像已经很长时间没有更新过了啊,为什么呢?
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