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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:/ z0 ^  ?& l: f# Z  m$ Y
to do-business
) `/ H1 [. P6 C- @% \/ P4 [. c rt random 360$ p2 V8 K3 _4 a9 g6 b  h' e6 l
fd 1
& e+ X# `* t6 _3 k) _- y6 | ifelse(other turtles-here != nobody)[
2 K6 ?3 E  S7 H& `$ r   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.
3 H, ^( Z8 ?" i% U& P' g& C4 @8 x. ]   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self      ?5 z* c1 r# i0 Y9 M: U# Y' |
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
: R* y- L( P3 |  B+ k7 v2 F7 j( b   set [trade-record-one-len] of self length [trade-record-one] of self
0 `2 O- N& M: J* _3 P   set trade-record-current( list (timer) (random money-upper-limit))
5 @! R* x8 o3 r% K$ M8 q
! c% i6 P- C8 h8 D7 ]* d问题的提示如下:
5 R" I7 z1 t$ y' r7 p- w
% h3 O) U, d% _( a6 ~. z3 herror while turtle 50 running OF in procedure DO-BUSINESS
1 f* j3 X9 Q1 v$ X) U7 e+ ?  called by procedure GO
* `+ T3 f; P1 [8 NOF expected input to be a turtle agentset or turtle but got NOBODY instead.% T, Q7 E6 H4 c3 L
(halted running of go)/ @4 {8 O$ U. w6 V* u

" \1 @$ k0 u' ]3 t4 @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~~
# @9 n' o# Z/ n: X/ }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
. n5 B" a* v+ Y; ^; v  p. @8 a) xglobals[
" u' o% p7 x+ r) v" Z9 Mxmax
& e- z$ G1 O6 N( q, iymax- b0 y& d9 m! B: o
global-reputation-list+ Y. G% m( I( O* s" `
6 l, F8 ?( j" r4 I; Y% b4 Y$ ?
;;
每一个turtle的全局声誉都存在此LIST. ]5 l  Z  y- M5 f+ I$ X
credibility-list3 h, v; |% ^: X9 O$ s
;;
每一个turtle的评价可信度
9 c% h+ S! V4 r- Ghonest-service3 d  h9 n4 a" ]; a7 N$ Y
unhonest-service
2 D; L$ y3 L6 W7 t! q, qoscillation: e/ j! L" }9 ^
rand-dynamic6 Y# \( ~/ _' ^' }) c; ^4 T; F
]+ }! r5 F! n& F0 |+ E, j

* e: Y' \, Q2 G4 Y4 X' zturtles-own[/ X0 W' B! I: B  ?
trade-record-all. _$ A& f! s& \; g! r
;;a list of lists,
trade-record-one组成
1 Q& d8 @3 x0 b, E- F$ otrade-record-one
/ y9 ^* @! n5 Y5 j% O  f3 O: J2 c  g4 U6 G;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录! d+ @, C2 {/ W

5 U) n6 U' w# Z' L;;[
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]]
  V/ x# Z; F! \3 `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]
( V. k" o  F2 a% N! |5 B( dcredibility-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
' P& w2 t4 r, }* m+ T% Hneighbor-total
- \  X5 `( f* w* M8 [$ z;;
记录该turtle的邻居节点的数目8 t8 [3 [: Y* b; m
trade-time
/ ?7 g# I, Y4 |2 u;;
当前发生交易的turtle的交易时间/ S" K+ v3 e! y* z! @
appraise-give( h+ |& N4 ^9 x& R5 m7 x
;;
当前发生交易时给出的评价
6 n( L, P" H1 [* R& Sappraise-receive5 C! P- s% G, C1 C# V/ D5 N
;;
当前发生交易时收到的评价
0 j5 a" w- f* n& v6 h) v# {0 Fappraise-time
0 h  p3 s, o. o;;
当前发生交易时的评价时间* R' ^) g+ c" t' m8 a, P
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
+ |0 L' O3 D2 Ytrade-times-total- R9 @. p4 E% h* q( @7 B
;;
与当前turtle的交易总次数) f: }3 z5 U. Y5 D0 t- i+ D
trade-money-total* Z4 z8 w9 g9 C  Z) K5 O! @( a& \
;;
与当前turtle的交易总金额
2 J$ S2 [5 I+ j! [' |3 N/ ~1 dlocal-reputation
' S' Z7 i) x& _global-reputation# }& B  r* m, W
credibility
0 A. J* a- h! p* b;;
评价可信度,每次交易后都需要更新7 B6 v1 J7 B& `; C/ m; p# t
credibility-all1 R' \$ s0 G( i4 Q% o7 a4 D
;;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
; {: k* H  _3 u; x3 |- z! n- f/ Q% g5 J. a% Z
;;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) e( \$ r& d# [8 [9 H
credibility-one
' F4 u  q/ [. I+ t* r# f;;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people0 Y4 E) a1 m* d0 j
global-proportion
: ]4 Y4 ?5 S$ L% `* I' A$ Rcustomer: }/ Z; j4 X  `8 l' p* b/ E! n
customer-no
0 `5 l: E7 _9 k+ x6 vtrust-ok' Z: N3 U' Z+ u2 a- C* }4 y
trade-record-one-len;;trade-record-one的长度0 b2 k+ ?. e4 }" {
]
; @/ N/ x( k, G: F4 \4 }1 D
2 g9 G& u7 D* E6 ^;;setup procedure5 x: `! R5 Z2 o9 H) u) q& _

* Q# b+ A* T$ d2 \5 b! G& R9 pto setup4 ?: S. Q7 M. x

9 S1 ^% b- r6 cca
  D! K! c1 E( S0 K. N9 c) S
$ [: q" i  `1 W: @3 p# ]; L! ]4 u
initialize-settings
0 I. K: M! u, ^" G: w" _

8 p* U& K, y* T0 A" |0 bcrt people [setup-turtles]

, M  c* I/ V9 @6 k+ B9 k; ^1 C8 g& O* v  E
reset-timer

! @" r8 w3 h3 h, W1 Y# J8 _7 t5 i
poll-class

6 s+ m) [6 k4 \  A7 C
5 s+ n' `$ L9 k2 psetup-plots
# e. {0 R* I( L3 j' z

' V5 Z5 x. n% p: w9 _8 Q% k' |do-plots

9 ^2 q0 z9 A4 Hend
* Q3 X( @# m6 f/ E' g
+ M. ?0 {+ N1 T( E: a, \2 g% g% Rto initialize-settings' {/ k7 |- l. E

6 P9 M8 h0 y0 v  M! ~; U0 p7 ]6 Wset global-reputation-list []

0 H% Z$ C- v0 o8 c9 I" L6 j
; D8 T: m/ l8 f) ~! n5 k" Uset credibility-list n-values people [0.5]
( c+ U- k) U+ m$ B2 _! \/ g

- n: M4 W. N+ m# q6 X2 d/ wset honest-service 0
& Z0 |7 Q2 `/ T2 x0 R  R
2 V; K6 ~2 {1 s' b( ?
set unhonest-service 0

7 s4 `  R1 S4 l  I. p3 S8 ]
9 f: C# ]/ _7 Z9 }9 v+ oset oscillation 0
* F% ~$ s3 m: c4 z& s1 k4 j
5 q* \1 ~/ d. G+ K/ [" g: q, W
set rand-dynamic 0

: m& M" U/ X8 W) C, \end
. ~# t1 P( a" X# v/ }: w+ m1 p& y
to setup-turtles
; w9 ~  }+ J4 D. I+ uset shape "person"4 t5 i; r" \$ B2 O$ q/ m2 p4 h* o
setxy random-xcor random-ycor5 Z8 v' c: z& T! O( d+ P: V
set trade-record-one []  j8 ~& v& h$ E4 |

* h7 }+ e! M; D3 Y0 w3 C( ]) o- ^set trade-record-all n-values people [(list (? + 1) 0 0)] % y$ A$ s, H. W+ w- L
. b1 r: L2 K+ G0 R6 q
set trade-record-current []
& @$ M: s4 {) d( ?# ]set credibility-receive []  l, U" V. W7 n% I% X1 p
set local-reputation 0.5
/ W0 {8 e" g. }$ k4 D. Qset neighbor-total 06 d: f3 C( p' `8 J6 R' Y- }
set trade-times-total 0! n" ~! p1 g6 a2 a$ X. ?2 O
set trade-money-total 0- r6 v7 X  Q9 V( M
set customer nobody7 K  [7 T2 X% h" U
set credibility-all n-values people [creat-credibility]
- E8 ~  A" q6 b$ H* i9 `! Vset credibility n-values people [-1]0 c4 X: i& {3 {
get-color6 l( N, N. z4 P$ \* F  |3 c2 w5 d8 w
- l7 q/ ?- }/ G6 G
end
: c: q5 G/ p$ y
7 A" ^( O. z- L2 F3 }to-report creat-credibility# O. B! M! d! C# O2 F( A
report n-values people [0.5]/ l4 O( x2 x- i5 G' _; f) @& X
end
) j6 }3 A) P7 R: N6 }8 P% r  }4 W! o; Y, P% s
to setup-plots. J4 a% x* i: r

( v) e9 J/ N7 c, zset xmax 30
$ `, g5 \' `/ n( s8 q+ E
2 s) x" b8 ~0 Z7 v6 \$ X& G5 A$ W$ L3 F0 E
set ymax 1.0

8 p  k: ]8 A# Z. P0 s( i9 A8 ^  }+ m/ m0 D6 A
clear-all-plots
. |" ?% s- Y+ Z( o/ G$ i! \

8 i7 o  i! Y8 c. X4 @setup-plot1
4 M* q3 }' R. l$ @$ c/ y% o

, f- X; L5 B+ qsetup-plot2
- x0 d+ r* B2 \! }/ [  e( [
. Z6 Z" `, D! {9 Q
setup-plot3
8 V# M* X7 Z$ s3 x+ P5 H3 p# N2 A1 l* U
end2 M. ^& t/ p8 C+ |+ h

2 \$ ]! i( t& q8 H& c( F;;run time procedures
6 R1 c7 S* }3 G/ ?! W" R' Q6 g8 p1 g4 [* h
to go  ?& t. O" n  U1 F& d! n

" {$ E3 C9 D( }) Zask turtles [do-business]

9 x8 ~: s" G) _2 a& q! @end' _6 D- _- X! w+ Q9 N# H
6 Y: D" A, A0 X; G! A  I3 L
to do-business 3 _  o% k# K6 W6 a$ r
# m% G9 n, X5 B0 d& C1 g/ J$ N

: y4 a& |$ f9 J* Q6 N) ~* J5 o' Jrt random 360
: W9 y# |9 ^5 H" o5 `
7 `3 W( ^5 M5 O& U4 H
fd 1

0 h! ~2 m9 h1 n; |" p0 N
* H! A; v' {! z5 j: X. [2 Qifelse(other turtles-here != nobody)[

# |- C; v! u! |3 @$ \% R' r1 |' w, i- I* f; E# G3 \4 o
set customer one-of other turtles-here

) ]. c% Z7 @$ ^3 U& x; G* Y, v; j* q+ z/ j2 C9 J# I' r# x
;; set [customer] of customer myself

+ `# ^5 _* U7 c/ V4 C- U# o
9 Q. {# q# a- u$ x) z+ |0 Rset [trade-record-one] of self item (([who] of customer) - 1)% F8 a+ u6 m  d# a9 r
[trade-record-all]of self
9 x2 H/ |8 ~, I/ B& X# g5 e% _;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

3 h+ s2 M- w) B. g) L6 t% J
' z! f% Q4 c8 p" i- ^set [trade-record-one] of customer item (([who] of self) - 1)9 d* o( p, U5 v" F  B, n' q
[trade-record-all]of customer
4 R2 ?; [9 K# l8 l
9 l1 l8 u2 v3 y; [# P
set [trade-record-one-len] of self length [trade-record-one] of self

3 L/ H2 c. A% Q9 W  {, L# `
- Y) |" G1 {6 [: q* hset trade-record-current( list (timer) (random money-upper-limit))
! e3 H0 z/ k- k; q2 [  M

. C1 }- O; u* f0 task self [do-trust]
. j* s$ z8 n. t3 r8 P3 k;;
先求ij的信任度9 h; L( ]& j' s

! X/ T! o& ]. R+ S1 tif ([trust-ok] of self)
7 L( ~3 S7 A7 C' ?. @% {;;
根据ij的信任度来决定是否与j进行交易[% ]; n1 d- w  H8 z0 J* q: ~
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
2 L) Q; N' W; G  S1 T3 d) A$ z3 |/ [
[
$ G. X5 O$ w: u5 f1 W% m1 a# r

" e, Y, o% d6 x6 ~" v3 a  Q+ Ddo-trade
" j$ n2 q1 s% m! \' G) U
# w& l, }$ R; q
update-credibility-ijl

1 T5 H& d5 }' l' [+ {. X" I0 j2 m+ m! P3 a" ^
update-credibility-list) L5 j0 w+ a$ K/ Z  H2 u6 z

7 z* |2 P) D) G- a$ m5 D' v. r, G" ^0 m2 Y' B. J3 |
update-global-reputation-list

0 @, C# p+ X* a+ g
. W0 m% h% N$ k* F: g$ \! Fpoll-class

  D; j4 ]" @  ~0 t6 \. O4 J; a3 y( Y: `$ A5 p
get-color

: k7 s) A+ f' f/ j+ k) `! f8 t. Q+ v' W! {% x3 w- V% g
]]1 O- B, A5 c3 {& N. [

+ c# K$ J. Z" q5 [  ^$ \;;
如果所得的信任度满足条件,则进行交易
2 E, s1 M8 ~$ S/ i: X3 o' v- u4 X  z5 j) B4 j
[

. v2 I4 e% A, V0 D9 ^# q0 V8 C% H7 S8 P0 v% `
rt random 360
+ P# q- ^0 _8 @( ^( u( [: d
. M, N) ?1 b* [5 {9 N. I7 u' u
fd 1

! a/ q' j) g: p0 e8 q. z. b2 R" w, M8 R8 W9 C& A$ k
]
' Z: j- i" O: X. a' \1 m  y
! b5 q9 P& q  W, r# P
end
8 t5 f2 O2 q, S' u1 w3 L
& X& j3 h; K, d7 n
to do-trust 3 |& T& u* u$ S5 c* I; ^9 n
set trust-ok False
- z  z# {5 b$ G8 R& r" ?: o
2 k& c' X/ y1 s5 C9 [

+ x7 w3 B2 y3 G1 \: g' @/ [8 Klet max-trade-times 0" H8 y1 B& q: U, w7 s% |4 L3 V
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]" B1 i2 K1 x  x) D$ ]
let max-trade-money 0
# m9 {2 H) n$ d$ `0 E: o3 n" U5 W5 Jforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
& i) L- b  f8 K0 ~let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
3 C) |) ?7 F& R( R% I
2 U% l( M6 V! O9 X( B( \& [3 W

3 K, X0 R% c( V6 s$ M0 v) i; _get-global-proportion. G1 o0 Y7 ~+ I0 z' J
let trust-value( [5 T! d+ i% \. x2 f8 v
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)

: k! D! J- q/ l* w! I- N1 X2 t+ eif(trust-value > trade-trust-value)
* B: \) N( N) s) ~- v9 z[set trust-ok true]+ ^  O, g0 \& R+ |5 a+ {
end! d9 l( B, c! d' x
( B4 U* `  C$ z1 u3 K
to get-global-proportion
+ k4 ?/ i$ k( G! h& |; _4 `- V: Cifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
0 o& r7 w* L; `9 Z[set global-proportion 0]% h. L" C. A" A1 Y7 `. Q
[let i 0, v; J' ^# v& F8 Z
let sum-money 0
* B( H" ?" u- `while[ i < people]
; c, k# J' ?2 h* z2 ]* o9 y[
3 J% H8 V8 K. P+ {* ?; A( dif( length (item i5 |  J5 F# L0 @' s8 c: _3 w
[trade-record-all] of customer) > 3 )
1 C, F# r7 S/ @9 a& F5 p4 ?: `0 F
[
1 r* G# ?7 {0 j+ s6 W1 ]/ {4 Iset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
& G; p, G2 [. D7 N3 _: s5 e]8 {; f" W3 E( O7 k* \, [/ z
]
$ |/ G( |6 [+ k& j( g9 slet j 0
( ]) U* X  C2 r  i# j+ |6 y4 jlet note 0
& d# P; _9 n, a5 P4 x: D9 [! w: ~8 U# dwhile[ j < people]
) O, C& Y, o: L[9 w0 r: P1 m4 s/ z
if( length (item i. k! |; j* n1 P
[trade-record-all] of customer) > 3 )
" O4 e! `* O/ ?: p1 N5 L6 d
[
# ]% m" C# J) f! [  s$ Y0 F  Qifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
+ ^9 r5 [2 }- n' }- R/ J8 w[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
  g' B: }, A; X" S( d) t) ~/ u+ y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
6 I) ^. Q: E0 R4 ^4 x: i# L+ n; e1 t]! T4 n; ~7 ]! G( R2 D- Y
]1 ^$ ], C# {# M8 o( b+ }9 n9 w
set global-proportion note
' p5 D% U% Y: J8 C/ ?) m0 a# C. c]( `+ k* e! g3 d( C
end& T' L: T6 A4 _9 }4 X1 S3 Z( @0 P

6 D  Z! M5 w! D+ \to do-trade6 W* m' T6 a, [" y" x: ?4 p
;;
这个过程实际上是给双方作出评价的过程  u* t- h2 ]) |: o7 C) H8 o
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价* L, V7 }. h( T7 c1 t2 a
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价% X# S9 \; q8 M2 A7 n. Q# L  s3 Z7 u
set trade-record-current lput(timer) trade-record-current# G4 `- A; T0 D$ H$ A' i
;;
评价时间( \( T; T& E# P5 ?8 o& t0 n
ask myself [* Q. m! [3 t- Q( c- l9 `' ]/ [
update-local-reputation
/ ~0 r( g* o9 G" f$ x( nset trade-record-current lput([local-reputation] of myself) trade-record-current
" J" N" `8 [1 M+ Y1 V]
$ e/ w7 l. ]+ @8 e& s  W' y; h$ Wset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
4 U9 E: V/ L+ W8 c;;
将此次交易的记录加入到trade-record-one
% u# r: S* x7 ?! W( t. xset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
  i: u/ V9 W/ q0 _* Glet note (item 2 trade-record-current )* s+ m* z8 t' U$ c& g
set trade-record-current2 w$ _6 T# y+ v( E  i% l0 K- J
(replace-item 2 trade-record-current (item 3 trade-record-current))

6 v" u9 ^  D$ n2 `8 a# J# u+ \set trade-record-current( i! V0 d3 s/ o+ c
(replace-item 3 trade-record-current note)
/ w7 Q$ i) w/ \5 {8 X4 O7 W4 y2 n* ~& P& V

; W& }, x" l7 ^3 mask customer [( }1 s9 y7 C. d: o: c4 u
update-local-reputation
# W: c6 u! ~/ C; Lset trade-record-current
3 w0 c, L5 U4 g& x) @2 h(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

- |% n, s8 C, p+ v$ \: [6 ~]
" W0 P9 z0 ?5 T- M+ a
& `4 e* g2 W* p8 P3 ^5 \
' w  X/ j6 l' q0 I2 D5 i
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer( m; q/ s' J' f' `6 h
1 Z) W0 j5 h9 R$ I% K
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
6 a1 d9 c1 {6 J8 D;;
将此次交易的记录加入到customertrade-record-all, i' F. v7 `  g% V6 G2 }7 a  L
end
, X3 Y" c4 {' O3 e5 x3 _
$ ]4 g% |' E: K; a6 y. d5 {; cto update-local-reputation' ^$ d/ n7 d. S$ ]
set [trade-record-one-len] of myself length [trade-record-one] of myself4 ~; p0 r$ b8 r4 u( u% p  |8 t5 Q

" G0 C9 F* x0 M) W* J8 b; c- W  R! ^6 W
;;if [trade-record-one-len] of myself > 3
# ~% r+ n! L( s( n: C! s! y$ g
update-neighbor-total
" s: p% S! Q! R3 J" D% l2 ~" a( a- I;;
更新邻居节点的数目,在此进行
. x0 Q# b9 C- k- V  qlet i 35 l9 U7 M2 |( Y; }- a% Y
let sum-time 0
( ?1 `( m  M  S& X' E& [while[i < [trade-record-one-len] of myself]5 m' ~* u6 f9 }# {0 i* h& P
[
) w* v. E) U+ b3 _- z3 _, mset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
, a. n4 W' s$ Cset i: S- N/ v7 t+ Z( W- I  Y1 Y( H2 a! u
( i + 1)
. r- j7 ]  Y; \, ]( E! Y9 d8 V) m
]2 @% l. ]. r* a5 M0 U5 a
let j 3
! e- y8 e1 X+ }- xlet sum-money 08 y  c8 \0 m/ g/ j: |. @9 h6 x
while[j < [trade-record-one-len] of myself]
0 [4 n) U5 E! r. I[
/ v. O$ e5 L$ [. B4 c$ a3 aset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)2 o# j/ J- N# i) o" K. d; N
set j
7 e0 `( y+ X) U! H- c/ \( j + 1)

! @7 a9 M5 \: u]( x/ f( d5 j" D
let k 3
, E8 {2 r/ q( X+ z2 s, ?let power 0
0 a9 F* O1 `8 v4 F: ?let local 0, ~- C: ^" f$ R$ @% @3 F4 B7 b1 w3 N6 {4 ]
while [k <[trade-record-one-len] of myself]% t; N6 \" D) w, P4 T/ k
[
7 c  \: Y+ Y9 W" [+ v9 }" y1 M8 O  kset 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) ) y( m: D8 v6 x- \8 h: o
set k (k + 1)
: m: s# ]! Q! [8 H]6 o  E8 A2 R4 m1 A5 m1 o
set [local-reputation] of myself (local)0 w, @! R5 z2 ^5 D# K1 k
end7 _8 h* o7 A# a0 }$ u# i9 g
5 p% C, m2 t" Z5 `: y0 [" b6 @
to update-neighbor-total
! ?  w! k! I5 p
" s5 p% N3 ]/ b* y+ e( Dif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]9 c9 Z% {2 N& a5 O
# y3 j1 ~& E7 F. o+ d
2 j+ e) B' C+ |6 |2 `& k
end
& `  h  ?8 r3 G" B, S6 G3 y4 L! r0 T
to update-credibility-ijl & t4 O4 [. _- \' z

: n1 v7 F0 K+ m1 h0 n$ a! v7 t  C;;
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。3 c' g, U' \, |: r
let l 0# \- j2 c7 r* }3 Q( `* M. P
while[ l < people ]' E% ?! s9 W- j: O+ ]$ p+ F$ ^
;;
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& j, B* A9 f6 P% l
[0 I8 R5 n2 W+ j* \; L) p
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)( U' ?! Y: E- p; L( J
if (trade-record-one-j-l-len > 3)) v/ N  _3 p' }/ P! F  D/ s( B
[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
2 D$ w) w, G& d  S# j* L( f. slet i 3. I) G2 o2 n8 R, c- [4 m
let sum-time 00 |2 G1 q3 M* {1 L
while[i < trade-record-one-len]
% `3 S& z" u) ]% u" s' p4 c( P[( n" r6 Y* r8 G( x0 P4 o
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
& X9 k/ f; B: E6 wset i
( d& A, }, B- b: T( i + 1)

8 t' E. d9 s2 q. t7 ~, j]8 t, I2 ?& M1 {% k
let credibility-i-j-l 0/ x* P' L7 W& I# A6 Y
;;i
评价(jjl的评价)
/ i6 ]' B9 d& g# wlet j 3: f+ Z. F/ Y5 Y, w% ~9 e9 V$ X
let k 49 P4 Q/ N, p" o% Q! b' D
while[j < trade-record-one-len]# {! ?3 h% {& V
[
. B3 h# e! c: x; Q; S( ?% W! d- swhile [((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
" w7 V: Z' q+ Y1 b- o. Iset 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)
* E# p4 A: R, I4 V% Y! V7 Z0 O, I( @set j7 _8 b6 w( F2 k
( j + 1)
5 v, T. ~# l1 Z7 m
]
( U) q0 N5 ~& m8 cset [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 ))) R2 p" b2 c0 x1 r+ n
, a; F+ h8 v# C
  x% W( j2 T3 ~# X: i- ?6 ~* j
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
, f4 l. V) f8 F: \  A: ?: y3 D;;
及时更新il的评价质量的评价/ ^* P: g  v6 P
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]  l3 y  w4 j! s9 H
set l (l + 1)
5 A  y" O  G& A7 t& o]
  d! H' R" y. {. ?' e/ B, cend6 h' p5 H% t7 p; p& H

! {3 X0 C9 s8 c, ]to update-credibility-list
" F- x. N0 n% u1 ^& Tlet i 0
5 G. e, D$ x7 I2 lwhile[i < people]
1 }7 B5 h7 d( t, L% p0 B+ y[
( a4 X- l; h( R9 Olet j 09 K7 E0 N0 G6 X3 A4 s
let note 0
# R4 c& c) X* `) Y1 c. klet k 0
. }! [3 w6 H; W6 K  F: H;;
计作出过评价的邻居节点的数目) x  s* h  ~" @8 y  G6 W
while[j < people]
6 z  F1 O" V# c1 t- w( f8 Z[8 T# R$ X( r6 \* r7 w! P
if (item j( [credibility] of turtle (i + 1)) != -1)0 p8 K" f) u1 ?! N2 M) b: j* f5 ^
;;
判断是否给本turtle的评价质量做出过评价的节点
4 M: d0 X: y0 [[set note (note + item j ([credibility]of turtle (i + 1)))
% c; b0 u8 N. o; y: v5 U. U2 G;;*(exp (-(people - 2)))/(people - 2))]

4 e5 v" w7 S0 _* e4 Cset k (k + 1)
* i2 w- d! @- @. ~3 x  |]- A3 q0 K1 }8 f+ v  H* J
set j (j + 1)# _( x7 u% K' e) z5 W
]% d7 ^; M/ [: S
set note (note *(exp (- (1 / k)))/ k)6 |( c5 U& p4 \8 [
set credibility-list (replace-item i credibility-list note)4 G0 W, H3 {9 @$ z! r9 I; p
set i (i + 1)) U2 {4 c; R; Z6 n6 U* S
]. v: Q0 v6 m  t+ W5 q
end. P+ C0 A# v7 ^7 M" {1 x( w1 F
5 I$ G$ d( M6 n2 A, m' T
to update-global-reputation-list$ [- P4 G- S- v# _: x$ U/ X1 w
let j 0% ^* [9 V, ~8 [
while[j < people]% h/ z" i' J$ K9 N; O( j% a
[
; {) ~- w( H* r! jlet new 02 t6 e" z5 R! B  Q7 }- O. s1 V8 |
;;
暂存新的一个全局声誉
8 w* z, G* V! E, i! H' `/ m1 Wlet i 0
- d& v+ G6 J( k. t5 q3 J' l5 blet sum-money 0
, R  }3 L7 T5 Mlet credibility-money 0
3 ]) t* S* o8 N0 W2 w9 Uwhile [i < people]# k) v' C& ?5 N7 g' A+ k3 G% B2 A8 x
[
0 F7 E% k' ?, D- U/ Sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
9 v% R9 h3 @9 ~) W$ U) v6 Iset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
, o5 Q+ S! q) ^, B, K8 iset i (i + 1)
5 `( r( O) k4 Z]
6 r, R' I, H3 j3 R- Z: Glet k 03 K9 ]5 m; c! V7 `3 N3 W! l8 }
let new1 04 a. V" J! H. ^
while [k < people]
- ?2 {7 Y. i3 m4 u& t[
3 E& K+ t9 N% j) jset 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)& X9 a6 @5 x2 l
set k (k + 1)9 N  Q# y) g" w. g. f% i6 t( X
]
/ l: K; T4 R# n/ Qset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) . @8 N  _; B+ }8 L/ c8 E/ Z. X% O$ q. @
set global-reputation-list (replace-item j global-reputation-list new)/ L8 J  D7 U1 {1 r( S, G
set j (j + 1)
' J3 `1 [. w' M3 Z3 g. q]( P$ J2 a9 p2 p- p
end
: K" P% D9 O4 T" a) ^) W0 a% v! M& M5 L' s1 [6 [( c) g

, c4 X: C' v6 h3 I$ r. j$ o5 S$ v3 j5 k: t) A# @4 y0 c7 f. x# S
to get-color1 \8 f9 P6 ]- C8 ?7 Y
, o% b- x7 ?! z+ X
set color blue

1 F0 F0 l- i/ I9 ~1 H8 _4 mend
! J* F* D! [) w) D/ s3 ^
0 h3 U  o  b$ e3 g% k! |to poll-class6 |% Z2 b: U) ^& _0 y: i, q  n8 a; |
end
0 c7 {& h5 Q8 w# o4 e0 K/ u  g- o
: j0 t: x) j8 s& g/ |$ B0 e% kto setup-plot1, U! |: m3 r9 s/ O2 m

: l# K- {6 e$ J* p' \# `: Hset-current-plot "Trends-of-Local-reputation"

* J- q% L2 h/ I" q5 T5 u
- I# H9 [3 T! i% t6 xset-plot-x-range 0 xmax

- s, G8 E* a+ W2 R
8 W0 L* ]/ u' ]; H* M. N# |set-plot-y-range 0.0 ymax

- ^6 e) i+ B/ O8 I3 D$ gend, N, ^* K7 F$ n" z$ l# I

& A2 w0 o# T) F& [4 K5 pto setup-plot27 K. r6 {/ W% @% m4 @/ K6 V

! ^7 K. y2 q+ F) z6 L3 G4 B/ nset-current-plot "Trends-of-global-reputation"
6 r9 Q- ^  x0 E

' B/ u8 L$ a- a8 E: T6 a! o" \. Lset-plot-x-range 0 xmax
4 m0 `" q6 K3 r! y) t  `
! b' K7 ~# o/ ]$ R! A9 a$ o
set-plot-y-range 0.0 ymax

+ J. x5 e8 h1 r, uend( m' o# D. h( b+ X* i& F9 {
1 h! [3 |4 G) R; L- ?# Z
to setup-plot3; T3 \- H# ?4 y- @. x- {4 F
( K3 t6 N1 C* J! i4 ~+ r$ s' k
set-current-plot "Trends-of-credibility"
9 I! N% E& g, E! Q) p9 `" ~

4 Z" Y9 j1 U( Z+ v) Qset-plot-x-range 0 xmax
) @3 H; r: `2 k. d8 ~/ h% m& A

& ?; E" `6 r( y  l) o3 v: t& r( Oset-plot-y-range 0.0 ymax
. w: q& C! ~. q( f8 J
end9 o. x3 s: o  U; w+ e+ z

- ]. v5 T7 D* j+ Xto do-plots; M* T) O: T/ a2 ~- Q. z
set-current-plot "Trends-of-Local-reputation"
) m2 ?. Q, p5 ]2 I- y6 iset-current-plot-pen "Honest service"
$ S& L5 B2 }" @# h1 _% y3 rend$ i. {9 q; |' V3 K/ m) j
8 |4 B9 K1 O0 a) R" v. |! P
[ 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 i7 U' R0 B+ \8 p! Z' c( Q
. D4 s3 K. C% d4 \& 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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