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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:, q: b. [7 a4 V; _% w; d; t
to do-business
9 Y& Q0 I! P% J' E rt random 360
3 e$ F( I! K6 M8 m fd 1& `, j0 a, n4 j. e6 u( x
ifelse(other turtles-here != nobody)[# Q* Y# J) ?: n; [5 ?9 L* z
   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.
0 r4 z2 _& l. V$ j9 e/ R   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    " y( ~' v1 l  {/ j* J# f
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer/ d$ e2 _  U1 U
   set [trade-record-one-len] of self length [trade-record-one] of self
% X  h! L" D# E   set trade-record-current( list (timer) (random money-upper-limit))
3 R+ \$ Y4 t2 W' E9 y. @9 ^5 s$ X( L! ?
问题的提示如下:9 T, a& z% i% |0 S8 v$ I0 G

, E* j+ j, v$ @error while turtle 50 running OF in procedure DO-BUSINESS* k8 u- G2 G4 ^5 P, s* \6 R
  called by procedure GO6 W8 d2 N6 R1 w
OF expected input to be a turtle agentset or turtle but got NOBODY instead.2 m' v: ]0 v8 @9 @) j" y' N$ S2 F
(halted running of go)$ o& x! ^% M8 P9 Z+ v: K  O6 ?

* y+ Q9 c6 D( M7 i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~~
, u: c+ N- t( w0 e6 y0 a( ?$ }- w# L# Y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
+ r1 k* w- ~, eglobals[
+ O: v6 v2 a" ?7 S% g3 w# Zxmax" U6 ~& M2 d1 P" K7 D
ymax) X, Q5 [( p" b* j
global-reputation-list
( N% ~& C/ j- C, s  f- ~1 p% v- r5 A
;;
每一个turtle的全局声誉都存在此LIST
+ z& r9 g0 h8 S) E* E" fcredibility-list
& c; p8 l; V+ d0 S/ G;;
每一个turtle的评价可信度
. t" F4 u+ m# v1 P& i8 k  Mhonest-service
5 |3 ~* R- }' g, X$ U) munhonest-service& x9 \  o) U1 X5 |5 @1 ^
oscillation( G  h+ G- W( w
rand-dynamic
7 Y3 V* q/ \' C3 I# q3 `+ B7 D]# u/ ?& z( [+ |& ]8 Y
5 E4 t4 c+ }* N: D0 J
turtles-own[4 b* }+ c2 k: Y% A
trade-record-all" v' h8 B4 T" O" H
;;a list of lists,
trade-record-one组成8 z: Z. K5 a! o; \
trade-record-one9 t, e( n. i1 Z
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录* H/ T* Y% r8 g; L$ u
8 |% I5 ^; U3 C# a% U- O
;;[
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]]$ ?. i/ s# I$ m
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]
. w. H( M5 d' ?& ncredibility-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list1 g: Y# o: L5 n
neighbor-total/ L: M. B3 F  }
;;
记录该turtle的邻居节点的数目5 @  I0 s$ P2 E8 q4 S7 s9 H- W
trade-time- ]/ Z0 C+ t- m0 e
;;
当前发生交易的turtle的交易时间2 L# H  B1 `$ N0 X9 g& Z
appraise-give2 H3 S6 L  }/ Y, {  O. y: h" A1 y
;;
当前发生交易时给出的评价
# F- }% v( I  J8 p. M) {, [appraise-receive
2 v- F/ C( @+ F) L$ t! W2 i8 N;;
当前发生交易时收到的评价1 d! S  z. P. u+ H! D6 w
appraise-time9 \* F4 I; i4 }6 C) Z. Q$ A0 B
;;
当前发生交易时的评价时间
* ]! g# V/ r& w1 v" w6 Xlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉6 m' q: H" b. O' z0 R
trade-times-total
3 f: E. E) L7 M- I6 G# j" K;;
与当前turtle的交易总次数1 V; s0 k3 i7 \8 H& x7 m/ U+ W  F
trade-money-total+ X# k) b9 h6 }6 R+ c
;;
与当前turtle的交易总金额
/ N. ?0 e, ~' J3 x8 c4 vlocal-reputation1 |! l% m) H, @$ I6 X4 b( o* L
global-reputation
+ ^- n9 ^7 \( M. p- g+ h# ?& l4 acredibility
. I$ ^' A* P0 O/ b+ L* T1 ?' p: ~;;
评价可信度,每次交易后都需要更新
, D2 n# M9 J8 Gcredibility-all
' u! v. u" c' Z" @8 [;;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
) G: y9 l0 e3 V) H3 u7 `0 S6 I5 [: t
;;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
( d) K) Y( E6 I$ X  U  c% u  d3 Lcredibility-one
2 M9 g( `; ^: C, n1 V;;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people8 L7 x5 k( r6 Y
global-proportion$ z* J5 x- I8 ?" P3 q; q
customer7 N( Q' x6 T  x# l, s* U9 R
customer-no
( u( y) S& u  K3 h. l3 ptrust-ok& M* M* B: a1 U  d3 j
trade-record-one-len;;trade-record-one的长度: H" M" P% S6 C# y' D( `+ q
]/ a( L6 c( v/ Z! f0 A3 [
; i0 q% f  C9 U
;;setup procedure
! g$ \; u# {1 o2 o: J4 }% m$ A3 o4 d# ~1 b& `" H( K
to setup
  |! B+ m2 r5 }  P' o' l5 O' s7 j) U7 h( `. Y$ k' G6 B9 f0 I
ca

( K% d# g9 O% e3 M+ m9 c4 U( @; P/ C3 p6 |; n! z" W- T" h# T5 K
initialize-settings
7 I+ z0 m5 V; }1 K- l# s) n

5 I" e6 q2 V! F% S* bcrt people [setup-turtles]
# C) @8 O- x' ~$ n3 g! S' I+ n
$ T3 g# t* n  Q
reset-timer

1 d. q8 O6 U) t8 q+ ~6 o4 P
$ G2 ^% {' e- [& I: ?poll-class

! ~# e5 k) A7 ~8 ~0 a% o0 o8 V7 y- F& C
setup-plots
; @: A7 m6 P3 L: ^2 t

: k4 \- ]% r+ d# f" S8 Qdo-plots
# O! P0 C+ B! Q0 z
end, z8 _# g2 \/ b; S" v/ V
, m) [% K2 g0 F' ^8 M# p  ?0 a6 M
to initialize-settings# k- Z4 X+ U9 g! |

; H- d/ E: p# d3 v6 `1 Dset global-reputation-list []

5 a0 y( U7 ~. P5 P0 h; k* V3 ?
  t; v/ i7 u. B, wset credibility-list n-values people [0.5]

: W* U0 M# K8 `- d4 x9 v" V7 E( u% Z) K* ~/ ?1 \3 ~% f9 ]
set honest-service 0
% S9 [* L( F$ H3 o5 e# n* K0 X2 l

$ a6 a. \/ W0 ?/ j, Sset unhonest-service 0
4 |( b7 A  X$ x5 x# Z, L
1 |9 F0 F: }/ O1 o! K& ~( j" B
set oscillation 0

7 X4 e$ E2 X, O5 B3 X5 L1 W* w7 Q8 q# ^# R2 i/ Q  u/ S
set rand-dynamic 0

  k- s6 I3 a( Q5 e5 F) Hend
4 P0 I4 N/ a+ G1 b) g3 k3 f' B: H
- y( o0 k8 E5 c" ^" l9 N8 d1 x( Tto setup-turtles
% \+ M( k$ N  G- }' ?) Wset shape "person"2 V; I2 O  W: }
setxy random-xcor random-ycor. N& i: p& ?7 D) `0 i4 D: q% D
set trade-record-one []
0 Z, y* Q9 N: @) C, C; c

$ @1 j0 s7 C0 M& f4 x7 M# lset trade-record-all n-values people [(list (? + 1) 0 0)]
/ r" j/ Y2 F9 q6 ~& k8 c. N2 v( l

% u9 {- n5 j- W+ j4 v- A' N. M4 {set trade-record-current []
0 c: n) e' Z* [2 G5 Q; i& D' jset credibility-receive []
' V% J; l1 ]' V' l/ pset local-reputation 0.56 a. Q' i7 s, ]9 v  k6 \
set neighbor-total 0, `) Q* ?' m+ u6 C
set trade-times-total 04 V% ]  \# C! ~9 ~( K+ ?# Q
set trade-money-total 03 h+ q0 @5 k1 M  p* O) _
set customer nobody" {8 H) X4 w" b( t9 j
set credibility-all n-values people [creat-credibility]7 W3 n! U5 z* l4 |* ?
set credibility n-values people [-1]' @" q& W8 b2 k+ k+ t  c" P' p
get-color) Y: f5 @( u, A1 y

. p3 v6 x( O* s, t; B- d- J+ c1 r4 N0 Send: ]8 t  W; X2 d" y1 O* c

: X) `5 s4 f, f# |to-report creat-credibility
# x1 t3 ]8 c; Z2 f5 j. J% n+ B( [report n-values people [0.5]1 h% `0 }% Q$ v4 i6 Q2 t8 S* d+ I
end9 c/ t+ v+ A% t& `5 K3 w
' l3 N: m, P4 h; r8 }/ f
to setup-plots9 J, d1 Z6 a- Y- \
- H3 `& b1 d1 }0 G0 _9 y2 K
set xmax 30

$ `0 D% s2 D: n) v0 Z8 D, g) _& @5 m6 B
set ymax 1.0
+ y, O) q. F: `3 o5 J

4 V# J' T3 q* Kclear-all-plots
& h0 D+ x% V+ q- |+ g1 L
$ o* D2 F4 p3 d
setup-plot1

7 K$ D: j8 N2 x( x! Q
, v& @* c" I& K5 B* d* }% lsetup-plot2
; ?9 Z% R  p% J$ B# C& X* b+ z) L

% ~" T1 o& C1 G* a0 a/ W2 T" asetup-plot3

; G2 V- I! B- q, D) _' ?2 `( `end
) T+ @" u9 F2 G8 J$ V
, J6 a1 y! W# g/ C0 E' B/ K;;run time procedures
* z1 I# {2 F& F5 Y' @
9 |! @3 Q! }1 ~, u# d# s  d, S) r6 mto go
8 ?$ c+ @6 n) s; ~/ `0 i5 h
6 T# u4 l: D! b! X, n6 fask turtles [do-business]
0 s, C' z( X7 ]2 z
end
- _2 |* F' B# j$ v+ I" K
0 y2 P) X5 s  C+ L1 D! ^; H3 zto do-business 1 z! T* ]' r- [! w6 P! F
" X& V0 L. m' {+ J+ v/ a5 r) z8 d

: G/ Q0 C& h/ ?4 B7 Trt random 360

* X7 G- e* I& C: k7 {9 {( b+ R. T: _1 O( H' y
fd 1

, ]7 U2 {4 k( r( v% J% |
' |9 j# J, s8 h7 d  aifelse(other turtles-here != nobody)[
, H! Y( @" {. R7 J  L
! o, U" N) ^+ m6 i
set customer one-of other turtles-here
6 J- L2 ]8 k9 Y8 O# Y

& W5 ~0 j" R; M) n- U;; set [customer] of customer myself
4 @/ i" [. @2 p" I6 w: d/ }: o
+ W% m) e8 K, I* a. z. |/ {' P
set [trade-record-one] of self item (([who] of customer) - 1)& k  f0 B. f( P6 i
[trade-record-all]of self1 I* {% T, V' d8 h1 r7 Z. d
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
- M1 m& F( Y* S! l8 N+ A# a- P. M

8 x' N8 }  @: y7 u4 `/ s0 l6 Wset [trade-record-one] of customer item (([who] of self) - 1)# e3 u8 x- E+ s+ S
[trade-record-all]of customer

* C/ n* }5 G4 P4 _3 ?3 n9 v  v  l# z6 f4 z8 ~0 q
set [trade-record-one-len] of self length [trade-record-one] of self

% q" C, j2 a5 F* R% s9 e! w- E
8 g2 j! ]4 t5 |set trade-record-current( list (timer) (random money-upper-limit))
2 O" M1 o' u; u; n" ]9 X  N

3 L. @# m3 z* Zask self [do-trust]! V% n! x" G; i( ]8 v  H; w
;;
先求ij的信任度# B4 ?$ o3 I2 F  q/ t+ G
" d, U  c9 c# R, r
if ([trust-ok] of self)
4 G- F- i6 t. t( {;;
根据ij的信任度来决定是否与j进行交易[
! [3 w; Q: p! x4 Dask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
6 }1 c- H. J' o$ U# c1 U/ m; [& Q) Y7 T9 R# ]4 U% A
[
# @& Q( e. ]9 `6 `5 S6 C

1 E6 `3 S  O; ?- [: X8 w% c, M$ p' sdo-trade
# T' t4 B* t( x9 J, V" h' Z
# T! H! u3 B# K& W5 `+ G4 W; L
update-credibility-ijl

* m3 v; ~( {& M6 ^4 P* u  E+ {1 \! q! g/ ~. _& e+ Y# Z( ~
update-credibility-list
+ [1 K0 N* P5 [6 k% l: e
7 `) n, w' n. E- b0 Z8 Z- j0 a( P1 W

3 E. Q9 e) h" hupdate-global-reputation-list

, q% [. [. d$ x" E' B5 R2 r( n* v: X( y$ V. D' @8 N
poll-class
+ \. e7 W, B# m' d% }/ G) |
/ Z3 Y; Q$ |2 _
get-color

$ V  ^7 z" g$ |5 L9 m# ^" \1 x
$ I' t2 ]& J! G9 |  A2 A, E! w]]5 E8 _' g! K; I( \2 t$ h
. U$ {) Q; W  p6 |' O! g. Q! v. K8 N
;;
如果所得的信任度满足条件,则进行交易/ j; t8 x7 D, h

- ^% h3 p& R2 _- C+ [[
0 I, e# d1 O8 ]- f, m7 F' X
; d6 [9 I) r' V8 |$ s1 G% _
rt random 360
' S! I9 j1 B* o
3 B0 |: l5 u5 \, O* S& g
fd 1

5 O+ ~% C5 Q" G; J, t( [0 {# y- Y6 h& g. P8 l) I" X: s
]

0 l% ^2 m% O/ f7 M% ^  @
3 r" J% g  b+ Q% xend
# U% N& l/ w/ ?2 P. D

+ m1 A- M0 g" Q& ]to do-trust
' M/ [1 @" q* j" {/ [  x% tset trust-ok False
, N1 E* f5 b  q4 S  a7 C
- _4 K/ b, c, n; f! L8 ]
  F# f, J  Y) o; ~+ {
let max-trade-times 0
6 d4 j! U0 }# y- T8 `foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
2 E% q- L$ E& |8 q  k7 B' i- L2 |let max-trade-money 0; q* E  K7 ]/ }" k( ^& \
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
9 O* p, u# a; G! |. }8 Q- blet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))' @) Y8 o; \- o! `' N; Q
' w4 }( Z' B/ n: A$ q

' ]2 b: d  S2 R! o& F; \get-global-proportion; z' S! z5 h1 G1 O) l+ P
let trust-value
- d( n% {' X6 P* @+ Xlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
1 d+ J3 i, ~6 d6 z  S
if(trust-value > trade-trust-value)7 y  s. M' W/ W, ~6 B2 c7 ?3 p
[set trust-ok true]
# \& a, J# T: @1 s) i1 lend/ A6 l% n6 r: N& ^3 D5 f( K# f
- y  b3 k* t' I' R
to get-global-proportion7 b0 q0 Z; u5 C- ^: X+ M5 T2 D9 t+ A: l
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* S6 I0 w1 E4 M# V4 o
[set global-proportion 0]! c2 K' A4 Y% L' l( u4 V
[let i 0
& Q5 {3 V6 M( B  y- xlet sum-money 0
) h+ b( c9 }5 }: G: p5 F# h; Jwhile[ i < people]
& q; ^9 {- A- _& g4 t[# o% h1 z* D' {! S) p+ N+ M3 ~1 @$ r( j
if( length (item i) R' B; @5 ~0 T* D
[trade-record-all] of customer) > 3 )

7 V- R7 v$ a" s* k! A$ V) u[; h0 w% z6 ^0 E7 y! V4 C" M
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
3 u+ z( @) y% r; D* n+ o# j]
: B+ Q: V: i4 S0 B# J' |" i]5 ?& }6 H7 i2 l: s0 T( @5 N1 M  g
let j 02 H( U$ i% Z% B; B& f, V1 T
let note 0% U1 W  J8 t& t$ ]; k" _/ ^$ ]
while[ j < people]# p4 [: V; t7 l) u; c5 @* ~
[1 ?6 _6 q( {  x4 c: ?$ h; R3 t
if( length (item i
8 ?& z/ H0 x) T' M0 T# D[trade-record-all] of customer) > 3 )

: o3 i$ u' r  c. Y* a[
; h$ ?9 m6 X* Zifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* {5 V9 J1 C! H% l6 O[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]& x! C4 j& Q; T7 W8 b6 I7 U1 @
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]9 F/ p" V3 Z  w1 i
]1 v$ ]' b' R) S  J, `* |) i7 t/ ?
]) c. w% d  s% Q9 D) b/ F
set global-proportion note
1 {, V  n# L! V/ z- \( `8 _]
( u  R  ~4 ]. yend0 K& H& n0 \# `  N5 I; z

/ Y+ s+ r! x% C$ Hto do-trade
; C! O  c: F- c# f2 c) ~8 x7 [;;
这个过程实际上是给双方作出评价的过程
- z8 h$ z% [9 d! k; H- Z* W/ Dset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
: p" B" T. J0 O5 k9 r$ v. mset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价- Z6 s8 B3 b9 Z- U
set trade-record-current lput(timer) trade-record-current& E0 U5 [0 F7 i8 _0 h0 N- m
;;
评价时间# z6 h5 y+ H# }/ X+ T) y; Z; E6 S
ask myself [
) E/ O3 }1 D1 G" H' `9 j6 Vupdate-local-reputation' D# C% h  m3 Z) [: z0 O% w1 T7 h
set trade-record-current lput([local-reputation] of myself) trade-record-current+ T" T& r) d7 i2 ?
]; c5 D: V0 U) d$ g
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself. z/ l; u( S/ T- i8 G+ O
;;
将此次交易的记录加入到trade-record-one7 X  `/ ]: ^( o" ]8 k
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 r5 s4 F8 Y/ {  y5 t# T
let note (item 2 trade-record-current )
  A8 B. S- b0 I7 m/ n2 Eset trade-record-current' ^7 H* u, t- p4 B9 s
(replace-item 2 trade-record-current (item 3 trade-record-current))

+ w' w* {2 [3 V" L: qset trade-record-current
7 m* n, n7 W; d, R) M* `, [/ o(replace-item 3 trade-record-current note)
8 c! c6 V/ @5 |' N
% L2 @9 V0 T$ h0 |/ |4 h
. a/ q. r% c& F, |
ask customer [( M0 _) H& S% K- `6 l
update-local-reputation9 v- Q1 i5 X( n$ M7 p
set trade-record-current0 m- G0 a0 _6 F2 [, e
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
5 ~* v0 B  p1 D) C# j+ m" W1 |( s; F
]- d* k8 D0 G( {, I* r

6 D( V( x- o6 n* O

- W" x1 h5 [5 k$ nset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 F( W* @" p2 B' o% M* ?9 q
' B" F. V. D* i. p
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ Z0 W& |/ w$ y1 U- y6 E
;;
将此次交易的记录加入到customertrade-record-all
+ r4 B% r5 m' j6 hend
7 B+ C0 r) g6 u- C5 o+ P! S9 @4 e4 J$ K1 N9 n/ ~* M( L, X, y
to update-local-reputation+ |# P4 W/ R2 ^
set [trade-record-one-len] of myself length [trade-record-one] of myself3 y1 l: M2 f) z" c1 m4 G
+ O* k, K  L# y5 Y9 w# p5 y
" ~6 O+ D4 N" n2 x# L' a/ X
;;if [trade-record-one-len] of myself > 3

% A5 r+ ^* W) aupdate-neighbor-total3 d8 i3 l0 P) U
;;
更新邻居节点的数目,在此进行
# v9 K/ X+ d3 O" G3 p0 X' Y( clet i 3
9 H- }) R# l. n- Z$ ilet sum-time 0! v2 Q4 @" t' Q4 Z4 |. V( j& \
while[i < [trade-record-one-len] of myself]# I% j4 V. e# _1 B# F
[( {7 a+ k9 _+ F4 C
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ): i' c. g! S! I! X/ T
set i3 o. [( A0 v! k6 _8 }
( i + 1)
* }3 x7 I* G! b/ F% Z
]
/ a$ f9 b8 G8 v2 flet j 3
( ]( s; _" ?) j! w8 M# V  \* x7 ^let sum-money 0; {8 E' `2 Q3 g4 J
while[j < [trade-record-one-len] of myself]
( G1 j0 D6 x8 d3 E[
, }  L2 N* Y9 F: F7 G2 d0 L4 {+ Lset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)! O1 a, R# j  [# ~) h
set j' u" L! D1 X8 K' G+ q# }% t( d: S
( j + 1)

" }: Y6 P' h0 A/ {]
+ E  Q; ]+ E6 wlet k 3
6 e* N" d- D  l+ Nlet power 0
! ]! X. [6 N6 F; l, Mlet local 0$ D- t9 L8 ~$ {
while [k <[trade-record-one-len] of myself]
0 s1 p0 F0 A* U+ ]/ y  e7 q8 h9 O* A[' K# Y; g1 {$ Z2 _% o
set 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)
. @  `: S* v# C  t$ o6 a! d* Sset k (k + 1)
6 T" s1 |  d# ]- `* J9 z]! z4 |' }4 N7 E
set [local-reputation] of myself (local)- I; B2 ^3 I( L1 n4 }
end4 k# B. u8 W! ~3 m- G: N( M
$ D& f% r  `0 U: [
to update-neighbor-total1 y) b. r( W2 w* ^. U1 p. [' G

* A3 E- X: K9 b4 Jif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]; \( @+ G' L, \  x$ d% b
' p* O4 `& g5 g' F8 q- W* J1 M

' b. L. L/ u0 @" Zend
) K9 q# b' p$ b% p$ t) V3 n% a  R# v9 h# g
to update-credibility-ijl 3 y# w& S6 j8 k# `/ O* u
- `7 E/ x4 C3 Z5 {
;;
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。$ o/ E* p9 x6 D: y
let l 0$ V9 S* G1 {1 |" t8 s% R0 B
while[ l < people ]  n! t6 O2 \' k% L
;;
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
; c3 g  N/ |" z, a% K[' V* d( @# D: j# i, S4 _2 g
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
' m( }6 p/ ^5 r* p+ Rif (trade-record-one-j-l-len > 3)
" Y; s8 K; S: f; e[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& O* v- W, H. x. Q1 h" v  ?, M
let i 3
) y: r2 t' m- G. Clet sum-time 0/ P# ]  @! o1 h- L; n1 \, R
while[i < trade-record-one-len]; B: y2 {+ t- e6 j  Q
[
/ b, z7 O5 U0 c; j: M# Aset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ). n6 l: m0 S6 R- {7 u( ^2 N9 x
set i
3 W* y1 h, r6 W+ D8 j& D( i + 1)

: A9 e  P/ r8 D. G  l]
, U6 _; S, O' q2 Qlet credibility-i-j-l 0
, E0 K0 V* n5 G& h;;i
评价(jjl的评价)
+ S* T; H* b. {9 Ulet j 3
9 U1 D' y! y7 A& a& F/ x+ \let k 4
. Y' l% H) G- e- M  f4 ~while[j < trade-record-one-len]
& j: k. w4 T8 G, c( ?' S* t[
1 Y* e6 ]) q( [9 ]: H1 xwhile [((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
7 x% d. ^9 V' R8 e( k  mset 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); g0 Y3 F, |% @$ M; ?5 C, m  X
set j9 S7 ~; F5 g6 N5 o0 F( w9 C
( j + 1)
  k  I$ q% h" |5 y
]
) }, ~8 r1 E2 D* 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 ))) y) c- I# g! u

; x/ c7 |9 d- ~2 R4 ?" [) q

' }3 V8 Y5 Q  N( o' K4 _9 W$ Glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 I! P2 m" z# _8 U& Y  t3 @;;
及时更新il的评价质量的评价: k- \  s4 V6 _. @! W, K0 K7 r- ]! D4 c) k
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]$ d  t2 R/ Q% }3 j  X
set l (l + 1)
4 ^% b3 g; Q. o5 E]
/ u) r" f6 Z& H7 Pend$ f- K* C5 Z1 O8 v4 n  `: p! |* n

' e  }) n/ L' J) N0 t, ]2 ^to update-credibility-list. t8 @4 W5 `  S* ^
let i 0# n0 g! ?+ }5 L- H# i
while[i < people]- f& Y. p" w' A/ g2 h" Q
[5 J' Q0 g4 l1 }$ x: M
let j 00 D% k4 C$ K+ ]  h0 E# [, Z
let note 0% g  S8 o5 i$ i
let k 07 \$ M5 y7 j9 o
;;
计作出过评价的邻居节点的数目
  I# z( R- N3 Iwhile[j < people]( c3 m# A* }0 m2 Z/ X
[# F: b" `; W9 H
if (item j( [credibility] of turtle (i + 1)) != -1)  ?. p) c$ I: Q& r. q$ s
;;
判断是否给本turtle的评价质量做出过评价的节点
6 A2 `0 u0 k! L[set note (note + item j ([credibility]of turtle (i + 1)))0 @7 c% Y, U! o# ~+ z
;;*(exp (-(people - 2)))/(people - 2))]
; d: O+ F' O; W0 n* D
set k (k + 1): O  O. A9 X2 i3 ]
]
( S4 q2 r7 c) e: Oset j (j + 1)
  B  o5 B& Q* |0 k]
. m3 E5 s0 a8 K! c. E( u! {! oset note (note *(exp (- (1 / k)))/ k)
; s4 m# s5 K' T" @8 T7 {set credibility-list (replace-item i credibility-list note)
/ t% m: i  Y$ y7 g3 z& |) q; Wset i (i + 1)
$ `( }& A. |7 h1 ?; D1 I6 A# x' R2 U]
2 n% I# }8 i$ h  x9 H& q# Bend$ Y* ^5 l9 j; ]4 \# R- R5 D) o
4 S. u) K$ B0 h" S9 {3 S( j
to update-global-reputation-list
% T4 C# J! J/ F: {9 o+ c' mlet j 0
- T4 ^5 g5 S# M: Z3 j$ y. n% Dwhile[j < people]7 ^% i4 v# n( u+ w- i, I$ u' c
[
% w+ @  ^" C4 j* Y2 f' u$ {let new 0- j/ V  L; }8 G0 y
;;
暂存新的一个全局声誉4 z% N' ], J; t8 Z
let i 0
/ B# V* V3 Y2 T  tlet sum-money 0
7 X4 ^2 n. `' U9 N/ ^) \6 D% t: nlet credibility-money 0
7 B: ?1 l" x; X1 Z8 @, J* Rwhile [i < people]
1 A% l6 {3 y+ n5 p[$ o" n4 ], c' N
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 |+ o/ `3 g8 h- pset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
3 t2 r' J* K( v/ |# H# V2 o, `set i (i + 1)
2 |0 D) ?+ B- N  ?: T- w6 []
/ J; {2 {9 Y' u+ x, Glet k 0
4 H6 ?* L6 J, m0 ]% l" \4 \9 hlet new1 0
' f0 {- Q6 A# T$ ~while [k < people]
5 W6 P* {& e# o, T6 H. e4 Y[9 U5 K& a  ?2 F5 h& D% i2 F
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)
4 d6 U# C; X) l" R, x; ^% l$ _. Bset k (k + 1)! S. N6 N  ~0 w; g: {/ H5 {# O
]+ z6 v8 D1 i7 z
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& ^6 M; w8 L5 m# v8 B, jset global-reputation-list (replace-item j global-reputation-list new)
) Z# ?0 u% F( m4 D7 K3 Z5 O; c2 `set j (j + 1)
* j/ B6 S% p( i& {* G5 p) j]& w4 w! ~  Y3 r  g1 K' u0 T
end8 X5 ?3 H. w7 G: ?% E2 [! C$ _
) q  e$ }: A/ ~2 D5 F# J6 `

* C& C* D$ t3 M2 B, x4 _( U
% c  x& P' h  r7 h" P6 _to get-color
* H8 i# C. T$ e* a3 n
# X- R9 L4 T  {; b/ t! [6 aset color blue

  W5 [! U* M* B6 Q: }/ T+ C: xend' D1 ]. c( i: m6 y- K
9 u6 e8 G5 B* c
to poll-class. k5 b' k) s! T, t7 Z7 t; u
end
5 F* G" B, T8 r, A
7 d" h/ u5 d! @. F* i' u! I8 ito setup-plot17 B" K& ~, y# T+ U
- T9 _8 ^/ x' G( I5 z
set-current-plot "Trends-of-Local-reputation"

) G2 `: A+ T  m4 N% L, m! `1 w, ?% E- s2 W, j0 t
set-plot-x-range 0 xmax

7 I" K( k# \4 M
6 x* y0 S2 L  |! b8 pset-plot-y-range 0.0 ymax
% C, }4 U( e) b9 t7 c! N
end8 K; G. t6 Q6 d) U5 b' W
4 O7 r+ R  G8 I2 x+ i1 ?
to setup-plot2
7 i+ K% Y0 w- C- i% u. t) e. G; [- t% [- p  K  |4 s
set-current-plot "Trends-of-global-reputation"
  }: }6 T" D: x4 I+ f: j5 b

6 P, X! \, @: e/ T. jset-plot-x-range 0 xmax
) k6 ^! G5 y) Q

" Z& f0 U5 K+ I* [$ oset-plot-y-range 0.0 ymax
2 S9 V* g- x# x. \7 l! t( ~& x
end5 B4 _8 i: ^& q/ a3 x

# J9 p; y) m7 l+ V" b2 s: Nto setup-plot3& o9 U0 o1 O! O# }# b

7 f+ j1 u$ i: K+ kset-current-plot "Trends-of-credibility"

( c" x; S5 ?" r5 q! W+ Q' G; k  U6 n$ X
set-plot-x-range 0 xmax
' s8 z% D$ x7 ?. y4 a
/ A/ s( u7 \+ ]' ~2 ?
set-plot-y-range 0.0 ymax
0 A' `6 ]; F  g) a) g
end
* h/ C4 z: w/ w: p- a
* ?8 a( @$ Z, o5 rto do-plots
% @& w! F5 K) X1 ]3 qset-current-plot "Trends-of-Local-reputation"! e8 P3 O% E$ O! Y2 t' }  z
set-current-plot-pen "Honest service"
+ H7 W6 H+ c6 H8 Y" {0 p5 Rend
: K! f7 M( C  l, f1 Y1 K6 H7 X
& x& }! z' w0 Q1 X. N2 h  I[ 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.
, g/ S. t; t8 f  Q6 t( d
- H: c0 u" w+ f. `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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