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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:
2 S7 ?0 N8 d" S' c, V! f& Fto do-business 2 N4 L3 {8 k: V- j8 G) X
rt random 360
0 M" Y, t6 Z7 ^" b8 D fd 1
8 a6 E1 e1 ~7 J, w- B ifelse(other turtles-here != nobody)[8 X. ?" g, v5 K! C
   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.$ a* l/ F8 q6 Q4 A; r$ K0 E
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    3 v  O4 G% z2 s* E
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer& t* B" t" I! N) ^/ X/ e
   set [trade-record-one-len] of self length [trade-record-one] of self6 X4 }8 f. E. k: ?8 S# g% y' {
   set trade-record-current( list (timer) (random money-upper-limit))% M# E1 n) z' Q2 M4 H7 g) g' c; B

! T% [1 A# J7 r6 O+ H问题的提示如下:0 X' y- s, _' V
1 {. C* u2 r5 v1 n
error while turtle 50 running OF in procedure DO-BUSINESS' g0 k$ p9 \& [1 N/ M6 F
  called by procedure GO. m; i% e0 g/ k- {  v
OF expected input to be a turtle agentset or turtle but got NOBODY instead.+ |6 y; S. [7 E' X' P5 F3 |
(halted running of go)
: f/ f" a8 Z; ~. z0 f1 L/ W2 G  P) q( b" d0 E' T0 |
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~~  r- q. H* X# l) f+ m
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
9 v$ i3 P" k' W; l0 Jglobals[
' K: o) {$ g3 S- `xmax
2 ^8 f. E" _! K2 Q4 [! r1 |ymax* z: z/ A( ?2 f6 ?+ z
global-reputation-list9 T+ o) Y% q/ \, k
# Z* `& g  d( L# d
;;
每一个turtle的全局声誉都存在此LIST
9 x  {% _. c' l- l: rcredibility-list4 S& L: \4 @6 c  m1 m
;;
每一个turtle的评价可信度; }4 a" @" X7 ^' r! ]/ c
honest-service
: }5 A- {; O+ H! Q: d* Y0 l  k5 cunhonest-service
' K" H8 O9 L, [3 s3 Goscillation# ~- U( z% \/ |9 c, ]4 }
rand-dynamic
: E8 X# v+ X0 r0 k]2 D0 C& p2 ^, Y, a& F3 A
: v, ~9 l( i2 X
turtles-own[  u; G& q: v3 {4 L+ ^) ?
trade-record-all& I* }: j$ c& u* U% A8 d
;;a list of lists,
trade-record-one组成6 f/ V  ?5 M- t8 D/ y4 O
trade-record-one0 M6 R! |" S1 S
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录3 H1 @. W* e/ R, ~# f6 m

8 C# A5 L& G3 `: R7 c8 f0 @;;[
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]]; ?5 M+ k8 k" l9 h
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]
9 S; l: [+ ~6 i% g& }. ocredibility-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
. K: d  y: r) q& d( Sneighbor-total
$ a2 p# J) f- w) }; `;;
记录该turtle的邻居节点的数目1 F1 o* S) @5 v  F$ I& }/ s
trade-time+ w2 f4 z9 h- g2 ?/ Q* e
;;
当前发生交易的turtle的交易时间
) @; o8 ~7 Q9 ?, ]' t  N! jappraise-give# U' P1 v- {* m3 u) H/ k, s& |* \& i
;;
当前发生交易时给出的评价
% e; \( Y! |; F7 ?& s5 }; ~appraise-receive
2 P0 c* \7 G' \;;
当前发生交易时收到的评价" w4 G( l+ y0 N5 ]! \
appraise-time
9 M/ Y- \' W# z$ s;;
当前发生交易时的评价时间
5 X8 L/ ]# Z# V8 t5 Q2 o+ b3 \( C) U. Mlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
! E+ `  Z! n% ]6 c, H2 ptrade-times-total2 L/ W$ p- e( Y
;;
与当前turtle的交易总次数
( [6 F! |' u2 s/ l# i$ J: @4 h* W6 _; D5 ttrade-money-total7 x* B  U0 d; {" ?. W+ G
;;
与当前turtle的交易总金额1 D8 m4 G: c) @6 F* o5 |
local-reputation
& m9 A9 M; d( k, b6 Q& fglobal-reputation
. t0 B& S8 q* mcredibility3 K" u! k5 g7 ]* M: c
;;
评价可信度,每次交易后都需要更新5 v; V2 n  n3 v. {" U
credibility-all8 c% ?$ u1 w; U- t; E8 o
;;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
6 M7 x6 _" S' n: ]: C3 L' o1 v
, c, g& X8 A2 K4 g4 m% d;;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. p. n" t4 n9 }2 a' H+ f1 s1 h2 W1 v
credibility-one: n! K$ ?0 |4 F2 @# V7 k% x6 p
;;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people3 ~+ |+ J; \9 N( @- A3 X8 A
global-proportion
) I( {  V# y( E! u# ^' Fcustomer; ?; J+ Y5 @4 N+ k3 f0 m6 ?* t
customer-no
) m  n0 O7 B6 \  ktrust-ok
, O4 |; F( i/ s; qtrade-record-one-len;;trade-record-one的长度7 b# U( V9 f" M, @
]* H6 D; |$ E6 E
1 t8 k; L! N2 ~; _% }6 @8 A4 {
;;setup procedure
# t0 |4 W( U# c+ H$ Y$ N9 E5 ?& s8 ~, U" k$ b5 J
to setup
6 l5 L4 L3 {+ S9 x  I& {9 k8 V& s, g' N* A5 X$ i. g6 Y( P
ca

% g; `/ i3 U9 L: m# Y- T1 |" V+ z1 y1 ]" M8 u9 t) B$ D' F' W
initialize-settings
: \' d5 }* Y5 ?! `  Y% L
0 k  r- S0 e/ x9 b
crt people [setup-turtles]

' {! }& O* X- ^* Z+ ?
4 K3 l5 v/ N& F0 I8 ]% Oreset-timer

# U$ z& q4 y* e1 m$ I4 ]5 U2 I. s2 a  a; Z# L
poll-class
6 n+ D5 G' E8 v6 N3 c$ u+ _' h, H
* s( b" r4 e5 ^4 C2 j0 n
setup-plots

: B* |( B' b! y1 l1 V& I8 v* U- {% W" ~# @. }
do-plots
9 h1 Q( g5 Z1 S
end" G1 p5 q. I. y5 o1 u+ ]% a8 O

: U# i0 P. d7 _" ^+ t6 Rto initialize-settings
: g0 e# ~9 ~* a$ V+ [! ^7 f$ I  x3 E( s! U, U1 ?2 I
set global-reputation-list []
! S. e% V  h8 M, O; U% P- [7 A& [* T
) Z( z$ \8 J) s+ y% s, U3 H9 ~) u4 z
set credibility-list n-values people [0.5]

: J6 P* ^4 g1 C+ C+ m# C$ r; i
# |; @" [- u$ d, {& ?9 ?  b0 P, jset honest-service 0

, c$ D; q5 }. s; g
$ J# C" f4 g2 O& o/ w/ Gset unhonest-service 0

9 M+ H- @7 ~# q( j5 G1 `0 ^% n% z. w, v/ N3 J- ^; Q" C$ z
set oscillation 0

4 l- ~/ t0 Z$ W, ]; c$ a' I7 w* c( U9 m2 z
set rand-dynamic 0

$ L* K0 o! I( j. Eend
! @7 R( p/ V; J1 g$ [1 f8 z
  A* P( D% A4 ^5 K, _9 Gto setup-turtles 3 H' O6 {5 U& Q5 g
set shape "person"
# U" E: c/ L; @, gsetxy random-xcor random-ycor8 g6 \- ]6 ]7 _' y, F1 M& j/ x
set trade-record-one []2 i. n% I6 f; @3 U- {, P& y/ W
8 Y* B! K: s- A8 c$ Q  a4 @
set trade-record-all n-values people [(list (? + 1) 0 0)] ! c, x/ S; i4 i. ]# h4 j( S1 F

( ]+ L. k5 T" [7 I/ q. L7 k2 Gset trade-record-current []( \# {3 z: w4 _4 h" \9 E2 F, |
set credibility-receive []
2 m8 x: q6 C; Nset local-reputation 0.5
' ~& A) Z; q5 j. Aset neighbor-total 05 J% ]; E; }- f6 k% u# W
set trade-times-total 0
: B4 i2 ?3 }: ^# V' e' Dset trade-money-total 0; N6 b9 G/ x# ?- b* }; O
set customer nobody
1 ]1 L) g7 u# N8 Y7 x* f2 V* W) l( Eset credibility-all n-values people [creat-credibility]9 w$ J7 X& \+ e* @. H- c2 J2 e3 }
set credibility n-values people [-1]! I$ a3 o" Y# q
get-color0 W, U' `  {3 B  H' d  ~

5 l4 a+ a# J+ |! d% cend8 `7 Z) Y8 q2 I* m* ~* K: x0 q
8 y; ^4 y" {8 h* {' m' p
to-report creat-credibility! Y8 a0 O, Y0 d6 d) b3 T: y
report n-values people [0.5]. ^6 G; T& A1 ]1 ^0 s' B
end% Q$ e1 W% ?7 ^7 Y" s6 j4 O

# N9 q3 D9 M7 `6 @, e! V$ k$ wto setup-plots
/ h4 m  E% c/ p/ h; o2 n
" d  I% C3 [' G1 Q$ Eset xmax 30

' E! E2 p- W8 A: `7 Z- g; {9 \. j* y
set ymax 1.0

. j- A( H& z! B; T: c4 P
6 {$ A0 r$ A5 g* |clear-all-plots

6 o1 ~* E8 k: ^6 O2 l  I6 C5 D7 p; z" T; s/ s' t3 }/ t4 I. t
setup-plot1

$ l% C5 F) Q( ^3 z! D. @
5 S2 _5 V, Q5 jsetup-plot2

) B) H* T7 M0 X4 f, K" A1 Z
) a; Q5 w8 |7 u/ E& y" F' D( dsetup-plot3
: `+ c. ^1 s7 _5 ~2 i
end
* }+ ^0 B- v! ~5 w6 ~+ e2 G1 B  R& d) m  L: R: a9 f6 n
;;run time procedures8 t; p% e' W/ T- \! B

: p5 E! X: n# u6 n7 b5 |# P6 gto go
+ M$ N, @' n' \+ g! T) s: g0 c
3 B$ w: q  o  \5 k1 o6 }( e# c' Iask turtles [do-business]
/ u' }2 f1 q2 U9 S& R- r
end
5 t! }# @9 B& A4 C5 j! ~7 W# i3 N5 i0 A
. X  {8 w6 o9 e. i9 U. {to do-business
8 t0 ~2 j8 b* a! O8 k: A+ u
9 v( i9 y, k' l

7 R6 H; Q9 N5 Z9 o$ D& W% J2 grt random 360

4 b. v9 H; x* a3 C8 _+ [! x+ S0 S: Q9 j; d$ c% P1 u: K
fd 1

$ [/ F3 E: q' Q  P  K$ O7 b' ^
7 v8 t( p- b+ A  [4 Mifelse(other turtles-here != nobody)[

& d: v3 D, ]9 g# z7 k& k4 d) I1 I) h$ k& h+ f" [& i7 ^
set customer one-of other turtles-here

3 [0 T$ l; y+ f: `  k
2 {; Y+ v8 J# i. W;; set [customer] of customer myself
$ v3 S. I0 ?8 u$ @
* l" s4 c  n5 X  s; i1 c
set [trade-record-one] of self item (([who] of customer) - 1)2 f, M( z  v' J9 z0 _  P
[trade-record-all]of self
  e- n- B+ @8 y' d  @7 [;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
* b: d8 s7 }5 I3 e
+ B8 E) K& Z! Q5 x& \9 S/ t
set [trade-record-one] of customer item (([who] of self) - 1)
+ W: r- H' |$ i/ m. J4 {[trade-record-all]of customer
: r2 N- L4 C9 @9 G7 i

) W8 b" [- G3 K  G( W; R0 \! Sset [trade-record-one-len] of self length [trade-record-one] of self
# q* o6 n: K/ R0 m& |9 E# T
0 y2 k7 {/ `+ E0 Y3 b/ a8 h
set trade-record-current( list (timer) (random money-upper-limit))

* N% {. D: c+ w( V  s* @8 A
6 b- v2 M9 A' {5 pask self [do-trust]
  N# F4 p) y, e+ G1 J( {;;
先求ij的信任度4 Q/ }9 X: b9 V& G$ u
" Z; L: u7 P6 a+ Z
if ([trust-ok] of self)& u! S% {/ Q4 j' z
;;
根据ij的信任度来决定是否与j进行交易[( w2 [9 J7 p& d/ y( v. A1 E
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
! U! m* l9 l) E3 A$ G" G( ~/ x, m) E& z. B3 @" w" M  H
[

3 f* `/ A1 A4 e5 E! \
' y6 g* ^8 m5 M( M0 u6 Kdo-trade
" ?3 H9 U, C& J$ x' C, x4 b/ P

, M% L( j) U! f& b! k8 mupdate-credibility-ijl
8 q/ @% G: G& R* g

0 K  c% d+ n( V- w8 Hupdate-credibility-list; N3 e# B9 v- r3 Y" B3 R. _
& |5 S# i* ?" P, |

2 t; m5 F, J; D9 Tupdate-global-reputation-list
# w! r4 S1 ]  d: R' J8 t4 N& n( k4 P
8 W. l: Z5 s2 I) W# T% b/ R* Y) H
poll-class
# u) g* t2 [6 K  u

# u3 d: {( F. {7 Z$ Qget-color

9 I: U  j7 |2 \. v% n) A% m4 r" m* Z& \3 f$ h3 L- s) F
]]" m0 G- P1 m+ S/ H

9 Q3 B$ P- y6 h6 O4 o;;
如果所得的信任度满足条件,则进行交易
: G" v7 G3 Q. X7 e0 R4 B" {# w+ N. K/ J
; t. l) t* i, D7 a* [" h[

$ ?" ?- u0 M8 j& }* Z, c7 T6 i
  n" K/ ?* X5 F9 @& O, T  H% @) Krt random 360

9 f5 D6 y( k4 h8 Y- o5 J1 }) `! Y
fd 1

3 V( ]+ d% A& b6 G" g/ P8 f- j2 g+ a1 m+ [5 h% d
]
+ y' @9 Y: p5 }0 G+ B8 Q: n: {
& @0 S5 D% L0 Z. S0 B4 R0 s9 r0 M
end

7 A4 c: J" X& _, G7 c* _# I
0 _: ~2 o5 h- ?3 ^9 [to do-trust 0 y: Q  [4 q6 [4 S3 {( l5 C5 L- P
set trust-ok False( j1 L/ ~7 R, x8 }1 {- g

3 V2 f3 I7 w1 i1 h
9 ?- c; ?) U+ ]
let max-trade-times 07 _! N8 a8 {( ^, B
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
# b# G$ u+ f# |0 F& rlet max-trade-money 06 y' N' D- b! V6 i# F
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]7 M" D6 }5 F: H! C  s3 ?* F
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))1 e7 P+ j) U1 i) m$ A

0 s2 @' h' `1 Z* k8 h

" Z% o( ^+ l5 W" R( ^9 `! sget-global-proportion
9 W3 s/ U6 C. {. ^' H  Tlet trust-value
5 J: D: N$ ~; c. X; R4 wlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)

4 ]/ h2 Y! L/ S6 ~( I8 Oif(trust-value > trade-trust-value)( q8 T2 M, U8 {$ T1 l7 K, R. `8 e
[set trust-ok true]
3 D: }9 [4 e/ |' R% B* ]end
3 t0 R( ^4 M! Z  e6 C! m* e. H% c! \6 d; }1 A! O
to get-global-proportion, K* x2 [- ~' ^. Z# R
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 m6 Q8 U& M& H+ K4 e  Y4 A' v
[set global-proportion 0]$ w+ H9 S2 R6 c2 `! u9 U" a
[let i 0* b! A7 s" K. `3 Z& s# ^$ g1 u9 u' S2 f0 j
let sum-money 01 @4 t  k4 R  |7 \3 c+ ^
while[ i < people]
- ~$ q: m/ j  x: t& v) j* G( H) l3 `[: [' s7 B! K* q; u
if( length (item i
: N4 p8 o5 g2 k3 I9 _) c$ o[trade-record-all] of customer) > 3 )
8 K9 A. \  w9 |
[" D2 D: f4 H) z
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
, D7 Z0 N$ m# i1 H/ B/ ^, b; i]
- w* [; ~; v0 e- ?0 x; _3 C]
" a; s/ T6 i4 p7 [3 ~0 i% olet j 0& S7 q& c0 s2 v% k
let note 0$ R: d! ?2 I0 W7 r" w( M6 H
while[ j < people]/ w0 f0 |" P, l, U
[
* k/ l0 x/ D. }5 H% ~  jif( length (item i
0 b& E/ r3 {, j! t- \$ l( C2 p/ }[trade-record-all] of customer) > 3 )
/ m; }, E* W! B* N) D; b) I
[5 F6 W( I) q4 r. X3 ~1 Y
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
$ n8 ?; C( T9 L7 e' g  U[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
; M+ @/ @' G0 R; Y0 C[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]' e& q& [3 ~' ^2 G" i# {
]
# L4 ^/ e; j( Z) u& P$ d3 l; a/ q]
; b' q0 K% M8 c( h9 p) \set global-proportion note: D( F. m' l( ~5 Q! g
]
- @7 O6 ^0 ~- g0 Fend# q5 @, O2 |1 w& x0 R
$ e9 w) `7 e* i9 t* u5 ]8 _# M/ N; @- P
to do-trade$ q3 m# u/ z) j8 Q
;;
这个过程实际上是给双方作出评价的过程
6 C9 U' J: X, x# Cset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价# z2 b" [7 x8 U, m
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价( A% W" o) e- ~9 i
set trade-record-current lput(timer) trade-record-current; ?+ p* a1 X2 l; u) C
;;
评价时间$ ?0 d+ Y/ G& i: H
ask myself [) h  _- c+ Q' \# m& ]
update-local-reputation) f% z/ H, x; ]5 L' {$ X
set trade-record-current lput([local-reputation] of myself) trade-record-current
8 h% o5 Z# t' s7 }1 @3 W]/ ~7 U- R1 y: \
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
' J6 ^  r% `4 v1 A- y1 }  U  v2 B;;
将此次交易的记录加入到trade-record-one
# n! _8 x% e' `$ D& e) s  A8 I' aset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 E2 O7 O+ g$ Y/ t3 ?let note (item 2 trade-record-current )
" x1 M) F6 F8 a# ^+ y2 A' Hset trade-record-current
" d4 d# P3 _/ b4 W8 z- ^(replace-item 2 trade-record-current (item 3 trade-record-current))
4 _4 a& m  k" ]1 t
set trade-record-current; D4 |5 I* R$ G; U
(replace-item 3 trade-record-current note)! D  U* D+ E5 L

+ ^0 B9 h( ?' {, V# L: E9 N6 S

7 w( E; {3 t2 A/ {1 task customer [1 I* S+ X4 Z6 J( j4 R1 M% T8 ?
update-local-reputation
9 V' w: T% d8 b; V) I7 J6 ?set trade-record-current# s0 X% u8 d: S- t9 ^) Y
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

! R; H8 R: P8 ]6 c/ J]
+ P- i4 a6 w$ f: d  m' z* I* Q. Y6 K& A6 R; s/ R6 p( z7 F

5 \$ Q1 @% i' e- c! |/ hset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer( \' b; i6 |, Y# @

% L, F: s. U" f  M4 v6 eset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))% [; f4 U! I. D3 z. U; X# ~6 V4 N
;;
将此次交易的记录加入到customertrade-record-all
% K& Y& A& X! F9 u" jend9 M+ R9 L  D; @" N4 z  ]

7 D+ F1 M: x8 [to update-local-reputation2 r2 I6 x+ H+ E1 R
set [trade-record-one-len] of myself length [trade-record-one] of myself% P2 v7 q0 r, Z5 I

, {6 ~: o9 v+ f
8 m. s. o1 p  c& L8 C1 w' @; ^;;if [trade-record-one-len] of myself > 3
) R+ f4 p) o% Z
update-neighbor-total/ X# `5 i6 }  W
;;
更新邻居节点的数目,在此进行, ?' v  v$ T* @: |1 G
let i 36 p) f7 v) z1 L% F7 C
let sum-time 0
& G2 l" A) h3 p: y) A% u" B; [4 D* jwhile[i < [trade-record-one-len] of myself]
& h( `: `1 J- K* U  H[* M& ^* [) d# O- `5 b9 |
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ). V' z& Y; N2 t, ]2 D
set i
- k0 Z) k% {% @: M( i + 1)
" s+ C, A. R+ T; z+ o
]
! {& K; A" [, p; z. ]let j 3
- @( r% o. ?5 \- c) w, wlet sum-money 06 ]  E0 O) t% ~
while[j < [trade-record-one-len] of myself]4 _3 B3 R9 w1 p& @' x6 I; K* j
[  i7 T% ?' j1 q" D/ d5 ?& W! B& U
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)* u8 E- L4 g/ l$ ~
set j- W3 n+ y1 G! ?; F
( j + 1)
  {) K5 C8 f# _7 P# ?
]( \3 o; W4 S* R, H
let k 3- R! e9 C( M9 n* A
let power 0
0 S9 }/ d2 g% A. w& |, Alet local 0
( |4 N, W- i. k# ]while [k <[trade-record-one-len] of myself]
% u& k. N% E$ M# L& X; f# v0 ?[
% `7 n! t0 f* F4 ]) ^$ x/ 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) 6 Z" a  l+ R5 H% a, W, B
set k (k + 1)
  G0 M$ \6 t: ^3 ~, G]1 Q* v  |  e8 z0 {" Q  J; h
set [local-reputation] of myself (local)9 g) s$ l# L. T) P
end
2 s3 g) j  _& b* C: ^( E
3 E$ d; Z. Y- O: o3 x: v% J5 c5 R. Zto update-neighbor-total
1 n* u2 ^% R0 E1 g* y# L& U1 S- \% I) c+ `
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]& u% o6 g2 h3 L4 s2 S% T

2 m4 Z; ^" U8 e; l; \  J* e
! _: a' Z8 y1 z1 J& B
end
' q" j; m6 Y4 J4 N6 h$ @* a: F
& {8 y# M  o% e) g& {: ato update-credibility-ijl 0 n" V9 n* q2 Z

- F) D4 [. Z: n- r4 m3 I& ^;;
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。
7 x0 H6 N7 z9 t1 g6 B, H: olet l 0
$ [8 N8 \8 J7 w) Z* rwhile[ l < people ]; h: }6 I' d* n8 `6 K, g
;;
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/ M( \& b; G; N0 N5 F5 A6 D
[
" }% R6 ]7 y! Ulet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
, G( d: Q6 g( d) @: i% \7 y8 R1 |  ~4 yif (trade-record-one-j-l-len > 3)! m+ O' `6 m+ V# b3 |, g0 @+ k/ k' q
[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. @' G- {9 {: L
let i 3; Q9 s5 N! U( c- l
let sum-time 02 a6 N0 W+ h" R# I( {2 W
while[i < trade-record-one-len]
1 _8 e, N& _$ p/ V/ {) W[
" q8 I: V3 |$ w' A& }set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 M* R0 H+ v! e: eset i
  x5 l& L7 u% r6 E) D& c( i + 1)

0 ~. L8 R/ z0 y* Y4 ~1 {( w1 e]- x. w4 A' k( \
let credibility-i-j-l 0
& [( B- q' U" E7 v9 d$ d;;i
评价(jjl的评价)3 e/ @7 h1 x2 `1 ]& ~8 b: f
let j 3# d1 R9 M  z. |
let k 4  F% d- Q; _' A2 U
while[j < trade-record-one-len]
+ |: e# q$ p- b9 u- N9 c: d[
) W  f7 x( _( @, f# ~while [((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
- i6 U# S8 b- lset 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)
+ [7 V3 T1 s" |3 T4 wset j, r5 ?5 b5 s2 o3 M* a
( j + 1)

; x8 `, J3 B; ^4 J) h7 K]
+ x+ O5 Z) x# }0 Zset [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 ))
' |4 _. r  _! \# T/ R, k, P# f+ {9 k, K! N7 c0 t( a+ ^
- }6 o4 L3 W' z( ]- q
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))3 k8 K) Z+ i$ h
;;
及时更新il的评价质量的评价1 L% u8 S+ ~! E  |* z1 U
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]. }& @7 `3 ?  w7 V+ ~
set l (l + 1)  Q- O! y' C7 z6 F8 t2 w' S
]
$ ^- h1 k, b4 w) V  P( fend
6 \( O+ r/ c& R. a/ o+ e% C4 J( n* ^( \( ^% d! n# A0 W) W9 D/ R
to update-credibility-list2 S7 L" g! t% ~! ~  N. C4 T
let i 0
) [/ C; _3 U7 J( l2 Wwhile[i < people]
, j2 X; m/ k; @[  j" a3 s  s1 l8 W8 _0 C
let j 0
: s. c& F. p1 G$ v% b  x& h8 Ilet note 05 s/ d  p, i. v# W# g, e) q, q
let k 0$ Q+ G0 ^' g) s- w- M
;;
计作出过评价的邻居节点的数目
4 K3 s1 e4 }- E4 C: n$ T7 D) B# e( L& hwhile[j < people]* w! S: ?4 I# ~2 }- V1 T
[
) C4 u& u6 ^8 g; _if (item j( [credibility] of turtle (i + 1)) != -1)( W" m# Y0 q) k& j% A1 s8 K6 D' D- |
;;
判断是否给本turtle的评价质量做出过评价的节点, x! Y1 D9 k# _- a
[set note (note + item j ([credibility]of turtle (i + 1)))
$ G/ o) A8 f! j% `5 h0 y% |;;*(exp (-(people - 2)))/(people - 2))]

) m% C, ]9 f7 D' w9 p5 hset k (k + 1)
" ^* V# P& Y& v2 ?, w) @9 U]% B5 [0 N" ^  N6 z& o) k$ j# M
set j (j + 1)
% w. W/ C* w( W% o- Y]
6 L+ c% i( T# U4 ~' R5 Yset note (note *(exp (- (1 / k)))/ k)5 R$ v1 D! n1 l2 |3 D
set credibility-list (replace-item i credibility-list note)- R4 @3 m- {% w* ?+ l% z
set i (i + 1)
& U3 u; r+ B, w; j1 L+ N]1 F* P) W! p7 A" V9 e
end1 A' U3 X- c) p' d4 u; J7 ?
6 P. V$ H9 g+ W
to update-global-reputation-list* V2 c' \  u) k7 f3 u) ?6 c5 J
let j 0
/ A, s8 U& u3 P3 ]3 Nwhile[j < people]
: j1 E1 C3 q/ s/ x[" B$ b- U! D0 e$ Q( o0 q
let new 0
: s3 h* S- J* N& J/ {' t1 H;;
暂存新的一个全局声誉
! K1 L0 l6 e9 d& Plet i 0
& G# s+ E; d1 a3 V  h+ g4 plet sum-money 0
& t5 U2 l0 W' N/ e1 _let credibility-money 04 I8 z9 H. P- r  l
while [i < people], b: M( @/ R  q, v
[4 b: ~3 c- G/ k8 u. Y$ y! v+ I
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 N+ G2 E: \( s, H' I  M
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
3 S1 c+ z" o2 G. T( c) f! M% E) d  Jset i (i + 1)
& k( ]2 a& F9 u. |]: A8 R$ A8 m- J( _* d  N: r
let k 0
  ]6 r/ [2 ~; `5 d" Nlet new1 0
4 |, t+ P: V  M2 t- ~9 fwhile [k < people]
$ x5 }- K& A9 r8 l[8 _, q7 Z' n5 q6 a; Y+ @
set 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)
' R; \; B) T/ h9 o1 O; n" d) pset k (k + 1)
' i& y9 H1 D0 ~( E; @( J]" ]4 [4 c+ s" |, ]. P0 x5 V
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 u! c) |, i* ]- g& Wset global-reputation-list (replace-item j global-reputation-list new)
3 C; D2 i" J2 j/ Z' Aset j (j + 1). n6 a/ b, Q1 f/ R2 O$ ~
]
% h$ n8 M( c" I4 c  H' c, ?end9 o" @9 L& k2 v3 F  J

& Z8 n5 z. N, J3 X% V" o
6 x! }( c% c' R1 q6 D2 H5 D/ A9 ?7 S  c' X# B* y6 ^6 y4 j
to get-color
- q; l2 ~" P3 U% e: B% p; `& [5 o
set color blue
6 i6 A+ q* }  c: T. @+ w, T9 f$ q
end
% K% ]+ P$ k7 y$ q/ f. G9 \9 {5 v$ h8 m) e! u0 F, q8 ?  E
to poll-class
; D1 @0 j' g) ^# D# Y9 ?end; m5 k6 S1 ^/ g6 h
' g; m# O& d  f2 M# Z/ u1 h6 N7 d
to setup-plot16 u. D, t5 T% Y% ?

/ T+ c+ O: z; i! d1 u5 bset-current-plot "Trends-of-Local-reputation"
8 k2 b2 x# E- S

2 N/ z3 S, {2 Cset-plot-x-range 0 xmax
) f% P% d. `# n, Y- Y

& K2 Y2 x" R/ G5 l5 [5 aset-plot-y-range 0.0 ymax

* O+ W: o" H& [/ D7 F+ n* Gend
  V8 U& ]/ Y& G$ h5 y! a8 j; h2 w1 C7 a. q" [3 D& k7 A+ E4 c4 N, y
to setup-plot2
- F8 M4 D/ K# n8 {! F
2 T: i2 {; V! e! Wset-current-plot "Trends-of-global-reputation"

7 o# Y4 i3 N+ b+ Z! v5 X
" E  x. T& H2 Tset-plot-x-range 0 xmax

" g5 P( @% y* Y5 H3 a
( o. m: \8 o! J1 xset-plot-y-range 0.0 ymax

( m& E7 M* g; Wend
" |: v. d! L# S3 P- m
# {# e! v5 p+ c# ^! }. vto setup-plot3' ?% C( F, z' d: o

2 ?+ m4 ^, t$ c" V" l; Q; Bset-current-plot "Trends-of-credibility"

; y9 ?" N7 p; ^0 p7 z$ l3 n, q$ A( U
. R9 h% O. e8 r3 a: }. ^+ y2 |1 V  oset-plot-x-range 0 xmax
" ~/ f7 C0 n0 Z& }$ ^
" |( T1 `4 R6 s: @% E( f  W
set-plot-y-range 0.0 ymax

/ d: c2 C, r' jend* s( X" F; _5 _9 U  D+ b* Y9 z
! Z& o% U6 ~& |8 Z% a, Y
to do-plots. A% K' {5 {9 z) s. p+ o2 n
set-current-plot "Trends-of-Local-reputation"! j' h* z) h1 c; L. `
set-current-plot-pen "Honest service"
+ }0 e% f5 A5 j' ?" @  Aend9 g; C- i  D" _& S7 C1 l
& h( g6 y: K+ y# r7 [. K3 e
[ 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.  A5 g& D3 g: Q: o7 M/ s  }& X

) @% j9 h+ U/ V! h) v4 I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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