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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:
. ?' T  O+ D* Q5 eto do-business
! m  J6 \' Q4 r7 O6 b+ T rt random 360+ l7 H3 T  ?9 P, G: p1 L; @
fd 1
! }# _. n; G. c4 f) g ifelse(other turtles-here != nobody)[7 k' m# s  E- o" @" X$ ~+ f3 I
   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.
. b. m7 g6 w3 L: F/ j$ O   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    # [. s5 B+ y( Y0 V$ o
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer! z; S* Y% W* O% J' q, A2 f5 e
   set [trade-record-one-len] of self length [trade-record-one] of self" S- d+ F& ~6 S/ A4 m4 N$ ~: j
   set trade-record-current( list (timer) (random money-upper-limit)). V+ t- J5 t! f  e4 e5 i% j

1 W6 \' G  q0 U2 t8 @问题的提示如下:- D6 u8 n# W: D
- j1 N7 v" Y2 D6 G
error while turtle 50 running OF in procedure DO-BUSINESS
& p! {' ]" P; `0 a( [% J  called by procedure GO  ]: ~" f7 B6 h6 O9 g' O4 M
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
" l0 l* `9 t  l1 L
(halted running of go), q3 K$ e3 L+ _; ~% \+ k6 D
- Y7 }9 z8 b/ O! S
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~~3 l9 k3 |  t$ u2 a, @) B- }- V  C
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
4 }) H. Q* B$ F3 h% Fglobals[- r: Q8 k9 ^6 o: J; X
xmax1 U$ ^9 K- S- H) x( V( \# i# R3 N
ymax
: L2 P2 j% C/ W6 A6 M+ `- gglobal-reputation-list
1 P7 n7 C8 V5 b$ [3 m! ]5 m
: K) W. A* k, S, i2 ?/ \;;
每一个turtle的全局声誉都存在此LIST7 x7 d. l, H( i  P" @4 i5 {6 L
credibility-list1 i$ Q6 z' {8 T3 @& F  O1 Y
;;
每一个turtle的评价可信度9 D% M' H4 o) W( N! V
honest-service  w. e( v1 w" ~- ]  X' P
unhonest-service, ~# g' k* {5 o9 Q; b" r2 K5 D
oscillation
& W, Q/ a' n, V. ^1 U. G8 trand-dynamic
  X% h. [# v* j! q$ h! F]
; s0 _* C  W- C/ u  X* J6 e! S/ L) ~% o/ M/ b/ x  x
turtles-own[
$ P, w8 e, u$ }trade-record-all% V' q+ u1 G. s0 C+ _7 ?
;;a list of lists,
trade-record-one组成3 T5 y$ b1 z+ _: b7 x$ H
trade-record-one8 J! ~4 \9 u" u3 u# X# `  B# b% T
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
' ~. e$ I, G( U1 b/ l  ~' l8 k  o( z+ T
;;[
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]]
3 X: S9 s, R  O4 ~- ^8 Otrade-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]0 J- e' s" M5 r
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list0 R- d+ d( Q6 u/ }: T
neighbor-total1 _6 X) F7 g% L, G( d
;;
记录该turtle的邻居节点的数目
4 p( T* T5 v( `5 ^- d1 x% Gtrade-time( J% ^# e' ^- n, ~3 F, s
;;
当前发生交易的turtle的交易时间
( W( J  @. o  J: fappraise-give1 a: d5 ?# n" F& n7 o8 A+ V
;;
当前发生交易时给出的评价* N9 a' U! v5 i! E$ H4 C( P& {
appraise-receive
) q9 X0 B+ z+ C) \2 d6 w' L( ];;
当前发生交易时收到的评价4 ^- w6 m* ~/ \7 d" K
appraise-time
/ Z& I) l. m( y: n7 v;;
当前发生交易时的评价时间0 L! z$ H$ x3 }) J# R" ~/ O
local-reputation-now;;此次交易后相对于对方turtle的局部声誉+ ^8 U1 O: t" s  S
trade-times-total  x0 @3 u# O/ p$ y
;;
与当前turtle的交易总次数
. Z. {+ f* n) e+ j/ H! U/ ?; ?trade-money-total
. L9 x  b& z" `; c6 {+ Z8 S;;
与当前turtle的交易总金额3 }; [- c+ y2 t% \
local-reputation
% Y4 q1 g! ?: F% Rglobal-reputation* p/ l4 C! o) K  \# r; J6 }1 H4 s  x
credibility6 v% \, W& }! l  w9 d
;;
评价可信度,每次交易后都需要更新/ y, y. H" b5 Q/ ?* o
credibility-all
& u1 h! P' O6 s+ u2 I;;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
2 S) [: v3 W5 o2 h) ^' z" X
: p& N- z) m7 q;;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
$ ]9 F' d6 U& X( ]6 Ccredibility-one
4 J5 v( D( a- Q2 K;;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people
- q" e/ p: g$ M1 b$ Jglobal-proportion' _( p6 ~! v+ s4 a" m1 q9 V
customer
6 _3 c/ T9 X5 l% gcustomer-no, Q8 O5 b9 z' c- R
trust-ok/ A8 m/ L+ m3 K0 e
trade-record-one-len;;trade-record-one的长度
: P$ t2 I7 {# y6 h0 C- J]
. j3 E8 z" i* ~5 ?8 o/ X
, h3 j$ D6 l& R. J8 p; R;;setup procedure
! N8 N. n# R! P3 o7 t( T7 ^) @; I
% j& T1 f! W5 n- L4 p1 p) Pto setup
9 \4 f& u, z! g' ^4 ?% r, f1 |7 K6 {  f. }4 G% K' K
ca
! z  A" F; U5 F& G( `" r+ p
- n  N# X/ V  W) |- A
initialize-settings
+ d, @+ ^$ z' C* H9 Y/ N0 L

" |" i3 R, h  @- ?- ecrt people [setup-turtles]
$ T/ h, ~) ]# s0 C2 P

8 X5 C) S1 P0 E; t; h  Wreset-timer
5 F$ ]! Y1 b' q/ |" o$ y
- h5 b' c0 e, d' c5 M
poll-class
1 Z/ q# g, z! C0 r2 q5 H5 r
% I! c( W9 h5 P, E
setup-plots

1 U- P; I! D6 X# U
7 E) Q! x$ k# h+ E+ }do-plots

# H8 p$ X4 y% Send* V- Y1 x- m; x

+ w4 K+ _$ m. ]2 I' uto initialize-settings) s# z* C, o3 N# }
1 e: p; B" K  Q* H
set global-reputation-list []
% p* h/ Z( N; V  S: s

3 i% {3 U) E; M: L4 [, `set credibility-list n-values people [0.5]

) {+ P* x* i* w2 Y4 d# u
1 O. Y& t2 V8 h: Sset honest-service 0

! w2 a* E+ ^9 T
) i7 W; J8 d9 I& Cset unhonest-service 0

1 `1 `& G1 w# V7 `4 H
  f; C: v6 U  y( X& N3 N, E- _2 Fset oscillation 0
7 ^7 V- N# ?% Q4 f" q

8 D  E/ b$ \6 {0 U# f. O- Pset rand-dynamic 0
4 F/ D3 h1 G5 v
end% X/ R; t) Z# M0 R  N- r# b# \

- Y% q' h( P$ {5 s! dto setup-turtles ! |9 s7 }7 ?* L( a. h7 L2 h" M
set shape "person"
6 T2 f( h7 o, K; @2 Gsetxy random-xcor random-ycor4 n/ E1 `3 ~3 |$ e; U6 w! f
set trade-record-one []
1 T; P( b' q" H* k0 N- w0 ]

( |/ [8 U8 k; \set trade-record-all n-values people [(list (? + 1) 0 0)]
. |: A: {" p" g* }( Z# Y# t

" _$ P: c. M1 `& o+ |& R3 kset trade-record-current []1 m* h) T2 H: d
set credibility-receive []& l# k: H; \" @5 l1 Z
set local-reputation 0.5
, y) d5 b+ R7 s9 }5 nset neighbor-total 0
" H- A' f- {1 B6 W. E+ {; p) aset trade-times-total 0
; a. H, L. F" b# D0 A/ @( eset trade-money-total 0, \0 b9 s1 U9 A. U* S. u0 d5 ?
set customer nobody
& j0 @/ c) ^7 ^- Zset credibility-all n-values people [creat-credibility]5 I2 ~/ [( ~% G6 G* s
set credibility n-values people [-1]* h2 R" X* B' `0 W: O8 Q. W
get-color
% ?' S9 y* w, a2 _
; B- b) K6 t9 W
end
' {* e* E+ ^1 s1 ^3 w) Y* o& l8 B
to-report creat-credibility* z0 c5 L' r- A, ^
report n-values people [0.5]
7 G% D: B5 J8 X# }# O* v8 c$ yend+ r, c3 @6 c/ u" L
  k% W. G0 a  D6 t7 o
to setup-plots5 f: g& g; a7 q9 P9 B

6 h6 y6 z; O! [  f1 dset xmax 30
- x' F# v  E1 U4 s3 B6 A

& w; C3 B  |! g3 T3 E: f2 {: rset ymax 1.0

; R5 ^& a: Z6 k& n2 x
; q7 T7 Q0 O( U% T2 rclear-all-plots

; h0 l# @& h5 g9 t% L# R6 `0 J4 p" M$ n* A, P
setup-plot1

2 G- \+ k% s; w! G! G- p9 I- x7 I( [# [# _  F' q' [
setup-plot2
& b. d4 e/ D% @- u" @

- `5 Y3 g% r- N) zsetup-plot3

$ l  j" W3 p) K0 F' ^2 S7 zend; m# F; F/ _- C) [

' N, `: v; u$ K1 k8 A;;run time procedures
& W1 h; p2 \# u2 _
) Z6 H/ p' v% ~# s) Jto go
$ ^# i7 A# t# U& P5 g
3 O" b1 l* h/ a. F, ?) {ask turtles [do-business]

3 X! o. d* j0 w2 j( Tend
" w/ z+ ~; s; U$ T
6 P1 U7 W5 u2 d& o3 x2 o4 y# Vto do-business
6 k/ P9 g$ q8 y% D
9 Y! E, T" o5 J; Z$ n# D! b

# X# p6 ?* |# D0 D# Ort random 360
) _- y$ X6 {( U: l0 U
  G2 Y5 Y6 ?) ^  C" s- x
fd 1

/ U' o2 ^0 ?6 L
4 d, |$ m6 l: U6 Xifelse(other turtles-here != nobody)[

3 B  J6 y2 Z9 Q: D9 p6 z6 N, T3 u6 x# l* |* f* u7 s3 `9 R% m! ]* c
set customer one-of other turtles-here

. H# Z' g, ?+ J1 z4 v
9 {+ @0 L* ]& s4 g# R# R5 n! d7 P;; set [customer] of customer myself

- n. N' }. z. b3 E5 i) |+ v+ y: b. m4 P7 b% o: x
set [trade-record-one] of self item (([who] of customer) - 1)3 f2 R: ~6 `. j6 w5 w
[trade-record-all]of self
4 Q1 Q5 f  z5 o3 w;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

; D5 a8 n5 }! w  u# P3 Y5 K! G1 `: [3 ?; r" x
set [trade-record-one] of customer item (([who] of self) - 1)) E2 h" }5 m$ Q7 [: c
[trade-record-all]of customer
. c* O& ]2 u8 X6 {
+ N7 T& d5 v0 L1 U3 d4 [8 E
set [trade-record-one-len] of self length [trade-record-one] of self
5 V2 H: t9 L" e: f' z" i
. j/ e, r8 y1 S
set trade-record-current( list (timer) (random money-upper-limit))
/ E( _, [. ?* k" o

. o# S! F: t; b/ t8 u) Sask self [do-trust]( i8 ]: H# {' E4 I
;;
先求ij的信任度
/ X. [& P2 q' `' I6 G
9 w* V6 L" c! [; P* B$ N$ Vif ([trust-ok] of self)# k/ p* t4 @* ]
;;
根据ij的信任度来决定是否与j进行交易[- z# c7 j( p: ^2 f. z( H) C2 ^
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
# T+ N0 J5 k* g/ |) x* r! f  f# @
2 [+ y2 }8 _8 H* w+ T[

' m7 B0 ]7 q- ?2 i$ q; v* Q) {! L) c3 M2 g& L
do-trade
, H. {( h- j+ R! ?+ c
7 n( C& R5 s4 }. `
update-credibility-ijl

: u% A/ }. K8 S& \. u
$ `3 P. {- N% m/ [/ Mupdate-credibility-list
# B+ w. B/ ~4 |' ~/ r8 V

8 D* n% H- e+ m4 r0 S4 l" v- m. a3 @0 j1 X$ f
update-global-reputation-list

+ i/ M( ?+ Q* L
/ K5 v" W5 _( a. r" D' d6 v4 U1 @poll-class

& n& Z3 ~$ U/ h9 h! c4 x* z
  k( P1 U. c  N1 \: Q3 h9 B3 H- nget-color

) u, ]& I; [8 H" t2 I+ o1 Y5 P/ S( o: p  ]9 R% \4 \
]]
1 C* F# K/ b3 t& Q" t; Y3 G6 c
7 D1 s# \. L$ k/ _;;
如果所得的信任度满足条件,则进行交易' M' o3 A7 Y0 L0 N/ a0 l- H  J
8 r3 E3 b* \. i" {! p& `$ D
[
% b6 [0 |2 W" ~

' q& `' i, c* u; A  b5 `' Ort random 360

, l. N. t' B0 p# L+ P0 L3 i6 d; l
% T: l- b' g$ f# V) ?fd 1
0 s3 v- ~" T+ B/ a' ~7 B9 Q9 P

5 _7 c& l) x# k8 B2 y+ ?5 Z]
0 [* Z' P' ~( q5 g* c
1 e" B+ {; L" {) C9 F
end
- j' z$ J6 {4 M3 T8 |

& S" k( Y! b6 C1 jto do-trust 4 ~& U. B# S# E3 K7 y- u( y- R
set trust-ok False/ u9 P% C& d0 B

, I. T# [$ k+ Q8 f# J2 K) b
  p' m7 g7 T( b8 m
let max-trade-times 0
) ^! ~# Q6 g: ]) Pforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]6 V% g6 z, ^2 u+ V1 r0 i3 B( [3 p
let max-trade-money 0
( g( U; q2 Q% u$ d7 mforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
8 O5 F8 P, x! T4 Elet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))7 W6 B) O5 W+ ~( S9 o

* ?" o, f! U9 @  U6 x
0 s! Q8 @1 t% w- c2 m3 u
get-global-proportion
4 F) R# Z. N5 n- Jlet trust-value1 j, U2 F. g; k6 c
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)
& A8 R& t+ h7 @! e8 o( I) S
if(trust-value > trade-trust-value)
! v/ v* O2 u5 w9 V[set trust-ok true]
) G2 ]7 D4 i1 V/ g7 iend
$ |, A6 p, Y6 X, ?& v
4 Y% [' _+ x$ T. q3 Nto get-global-proportion
# C  a3 Y4 d, B; R/ |, ^ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 N" H& _' O- G% s[set global-proportion 0]
% S7 j. [" J) m[let i 0* Z  }* K8 w" G* J4 l
let sum-money 0; Y5 u$ w( ]( B1 L% f% f
while[ i < people]
& y+ [4 ^6 D9 W# a2 P[2 u6 q$ J5 B% g4 C. L* I9 ^
if( length (item i
  X  q1 J/ F7 r9 s+ W6 J& Z7 ^[trade-record-all] of customer) > 3 )

3 v1 \& w# F; R+ z[
, t3 {& y/ p/ b( ~: M7 u4 Tset sum-money (sum-money + item 2(item i [trade-record-all] of myself))/ b+ m8 i$ d6 Q" |) y3 \
]9 v) [- m/ @9 Z! l6 a
]
; n+ B0 `9 R: W4 ]let j 0
6 |+ J" t+ `" N7 p7 g) c$ [let note 0
& @$ V, {5 j# ^" _$ x! Xwhile[ j < people]/ N) [; x; M- F) p4 a7 k; u) M( L4 @/ a
[% c( D! h) z2 o. r) O% Q
if( length (item i* J9 z! b' u" \5 ]8 O
[trade-record-all] of customer) > 3 )

4 M3 F6 y+ ~) d[6 l+ B5 ~4 p  M7 f
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)% \8 ?4 s4 }1 {
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
% j4 ?: r: e1 U# h. ?5 z* U; ?[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
5 \2 @7 ~, ]* M# Y1 ~& y]
% S* d# @+ O1 i. o- G4 n, I  T  G]
. X1 y2 C& V; s* r& w+ V# lset global-proportion note/ m% H- b% H" M- V  U+ f& w
], k  T! E& e& C6 D6 A; a0 V+ m
end
# W8 g# P- i$ _, \; {
9 T2 I& H% F5 E5 ^9 v0 v9 A/ Sto do-trade" D+ i8 ]: B" a7 v$ Q# ~
;;
这个过程实际上是给双方作出评价的过程4 X0 J$ Y* F0 {" z
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
7 h4 h: A& k: V' e8 _  pset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
! _1 I1 k0 ~) S1 u! d! _0 sset trade-record-current lput(timer) trade-record-current
3 x! T- g* k& L% e;;
评价时间; w. \. ?" \' W! {1 N7 p  c7 S
ask myself [9 a+ x# e+ \7 g  i
update-local-reputation+ E1 g3 D: d. Z0 k0 b' E
set trade-record-current lput([local-reputation] of myself) trade-record-current6 B% g8 x& w8 x' d* b3 K! N; j
]
+ M2 F; |3 J7 H' o( I0 ?. J* e! Q; s) iset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# {. p( S: _, @;;
将此次交易的记录加入到trade-record-one
' r, O1 b0 X3 _$ g: Lset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 X8 |9 E- L4 }1 Z- }, ~# Y- s3 X
let note (item 2 trade-record-current )
+ u+ \& N, q- _7 j, O8 v2 R7 Qset trade-record-current4 _% w7 ]2 l6 v$ Y9 j
(replace-item 2 trade-record-current (item 3 trade-record-current))

3 w6 \! O# A& r% E: [& bset trade-record-current5 c- }, |% Q! o$ r  T6 v6 q+ o
(replace-item 3 trade-record-current note)& _4 E7 g4 ?& }' u1 N  v
* J7 f6 L) Z5 R: U3 L  U- y

' U$ \; V) f' f7 e8 U+ M& s( r# O0 P# aask customer [6 j) u0 {, F5 v; ~' `
update-local-reputation
+ ?2 f& Y1 ^# L' R  l- Pset trade-record-current" X' Z( }4 C/ z7 S
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

8 [6 y- X0 z! a3 ?) Y, S1 j( e2 _4 l]( [! j* Y  l4 y- R( r
, H) X( g( ^4 I( g

) d) L  l+ o1 Q2 Gset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ s1 a" ~/ Y* n$ n: M5 U" ~
4 Z0 H7 R- s% {4 r$ T
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))) a8 B+ F) t6 _/ C/ h. z; \$ `9 [4 ]2 i  W
;;
将此次交易的记录加入到customertrade-record-all
/ {2 s8 g2 j" ~8 I- D$ Tend, K5 {) a$ R! f* b8 H

( B% |  b7 i0 T( K$ z, y) u, Zto update-local-reputation/ i: I% H- G, G- R4 M/ `
set [trade-record-one-len] of myself length [trade-record-one] of myself6 o9 f  c( w) n0 p3 @; l

" y- z; J5 Z, m) r( s  s! P. l; ~$ i; F; {* m
;;if [trade-record-one-len] of myself > 3

6 z# p4 F1 x* xupdate-neighbor-total
4 Q/ z5 h' D; L" Q6 [+ T; F;;
更新邻居节点的数目,在此进行
: b/ c! ]% L) j- s# ?7 r; ]. }+ I7 alet i 3# m7 h  \! K+ Q3 q
let sum-time 0
0 B+ n5 z0 I: z8 r' t: D- {, ^while[i < [trade-record-one-len] of myself], J9 v( o7 O; P& s8 @
[
1 T' T' ]2 _; {set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )$ Z& H% }8 i% P. ~" q4 U; B3 P1 [
set i) i# b7 x2 Y- V8 O/ m# H, m, D4 ?
( i + 1)
+ e0 Q% R4 |9 x" S# c/ W
]  ~  p5 z/ _8 C1 ?% ?
let j 3
1 h2 U2 V) H" }# [let sum-money 0
- A% [( d  i$ K8 B1 Z  d- v( }while[j < [trade-record-one-len] of myself]
* C5 ^3 Z4 p7 i0 U" g[
9 X% ^3 Y  i5 u/ s# {! R1 Uset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
9 A2 O' O- P# L6 n7 m% lset j
( x4 f# n2 v8 L- {0 r6 h, v/ E( j + 1)
6 _( d! m: j4 ?- e4 _& p, x. c+ e
]) @7 y5 _2 ^1 c, t' U
let k 3
; i4 ~0 Z. Q- L0 o4 z& \let power 0  R8 o+ U; z* C7 c' Y0 @
let local 0
# q6 i' ]! T/ m& Z5 a& k8 Hwhile [k <[trade-record-one-len] of myself]
0 m) i7 a5 i0 q. M( \: H[  c: ?( W! C1 Q
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) # C+ P& Q% C" N
set k (k + 1)
1 \2 {  P, W" S1 q# \5 A1 N) Z]
: M0 U1 f4 T6 Lset [local-reputation] of myself (local)
6 J. T2 w9 _" l! a- eend, z. i" v% w, k; O. @

! H: A/ K; ~5 C- ato update-neighbor-total
9 _) V. D* L/ }6 q8 X6 W6 f8 M
# E4 O) Q$ V- y7 @1 r+ Zif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]8 v" b: w) P- O! e9 M

' n! ^9 c( S1 u- u( |

2 J3 `5 z3 q/ r: l7 Nend1 \  Y& Z1 ~' ~3 n9 L+ n0 |$ q
  [* Q( ]$ l) Z+ i% j( D8 M$ f# N
to update-credibility-ijl * s- N5 `; ?" o1 N5 u
7 [3 d( ~2 l8 x) y- }9 [
;;
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。( V" \2 W/ W8 x4 U
let l 0
9 H  t) }" E! j1 e7 R2 j. V0 dwhile[ l < people ]
, m, j; I5 k/ W2 l9 ^* M;;
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
! k5 }+ L- g0 w! L1 W! |[! t( M* W4 {9 G. T0 G! S
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
5 i+ c8 l( l3 X; |if (trade-record-one-j-l-len > 3)* M" \8 T: B2 Z7 H4 {# M
[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-one1 d, G, H  b7 R# z; K6 p, C
let i 36 V/ W: F9 |$ J- x" Y
let sum-time 0
/ F* }& a+ k/ B7 r; }4 V6 o$ o) Wwhile[i < trade-record-one-len]# L; j+ ^- L. ~/ c) A' Y
[$ {7 J. c* F  u; ^
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 Y% g5 z* ^; s" M) d( x/ {0 }set i
  S" t/ u9 p3 d6 t( i + 1)

( R+ F- W$ h0 @3 h]/ @( T$ p) |% W) M/ u  M; V/ a
let credibility-i-j-l 0
4 P& ?2 |# ~2 f3 Z' N7 Z/ ~$ U- ^# ?( @;;i
评价(jjl的评价)
2 {* w7 R4 D- B9 V) E. ulet j 3' D3 l. r6 Q' W) f- e4 ]
let k 4; X# F! L; s  t1 R
while[j < trade-record-one-len]
9 }9 q0 O( B7 _# Y[, H* F2 s7 n0 K# h" l: X
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" K, R$ c7 E9 ^8 \+ F
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)
; a, [% y* g+ v( d+ Eset j# q! D+ N5 E. a
( j + 1)
- v% w- M( l( T7 R+ N
]2 W& g/ V! q5 K$ j+ U
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 ))
5 D7 x* L6 h+ W( o) v
! Q- o6 ~! e! i' q- b% h6 q  E# A
) Z. a2 c9 S: d
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ l& P+ u% F6 y0 h;;
及时更新il的评价质量的评价& m5 Y! ]5 a2 M( g: h
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]7 z, t) N' Y3 `8 |) }- Q
set l (l + 1): o9 }# m( h  f! r. Z5 }
]
0 T$ R/ w. F! z( c$ x" Jend
3 m- N7 M$ f7 {3 R& M; m
8 x7 ~+ u; z6 M: x" T7 Q8 V! {; Ito update-credibility-list" ~# v! z. n1 v$ U
let i 0- @1 M. B7 X( [1 P5 d
while[i < people]5 f: r$ H" t6 U) m! x$ A, e2 }
[& ]. X' m$ l. C( i- _, f! j, h4 ?
let j 0
- i- Z. K$ C4 Q/ D% a, zlet note 01 d, S' R& t$ f$ ]
let k 0
, J% d: w5 M! W# _;;
计作出过评价的邻居节点的数目. e; V( Q5 H) W
while[j < people]
. G* o+ ]" y& q# U5 _0 C& c5 i[% n7 P; i: N7 h8 b# c4 C, ?( @
if (item j( [credibility] of turtle (i + 1)) != -1)
3 }. J7 G: p) c3 [0 S;;
判断是否给本turtle的评价质量做出过评价的节点1 i0 u9 T4 a+ p' C3 r
[set note (note + item j ([credibility]of turtle (i + 1)))/ w" Y" X6 T* t. @7 y9 X
;;*(exp (-(people - 2)))/(people - 2))]

5 x( }  t' V2 Jset k (k + 1)( |0 {+ C+ i/ A3 L
]' X& r" R3 j3 X+ x6 c) I6 R5 n
set j (j + 1), z6 Y/ W5 e/ {& g- }4 }9 ?2 B
]
' y- _% [9 O. sset note (note *(exp (- (1 / k)))/ k)
% P; u$ z- @. K" q" c; fset credibility-list (replace-item i credibility-list note)- R( \" j8 H# y
set i (i + 1)
7 K2 B" v2 ^0 ^0 d# P) M, b]& ?; u) G1 u- C% Y( Y7 i
end0 ]; T7 d, ^2 }' {% X. y8 J
- n+ s* q/ @, |* [! l+ d4 w
to update-global-reputation-list$ z5 [$ v) ~$ Q- s  n
let j 0
6 J7 x  ?" h+ d) R, Cwhile[j < people]5 @: S5 d& o0 C& i' d0 K
[  {2 {; w/ h/ C. k/ l+ N- M
let new 0+ c  S$ [7 w8 A
;;
暂存新的一个全局声誉
2 L! [: w' Q/ [$ Ulet i 00 c/ x$ f) V) W. F3 W
let sum-money 0
% R, y# ]2 Y2 D* Ulet credibility-money 0
! n/ ~* I6 ]  A! H- i% Nwhile [i < people]7 L8 f5 v0 l# M$ b0 B& ]
[2 x6 a: h* Q$ L$ U" O" [# f
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: f8 f8 ~+ o& Q" ]1 }9 Yset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))* s: J' a5 {  B& j) t
set i (i + 1)
: c( S* g6 R% Y2 [" [0 N$ J]/ n5 ^' x- m+ Q2 _* R( |
let k 0" E& e0 `/ ?' u$ y4 ]1 N
let new1 0
  X( e/ f! _# V% _' ywhile [k < people]
1 `" Z; W8 E1 Z# p[+ \$ Y  F1 i; a- W& t+ r! j4 q' I
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)
+ x( h7 B, Z. z$ ~6 d" W1 I1 ]( ~' h. iset k (k + 1)- L+ S* A4 S9 V( V" j9 x
]$ J) {% o7 x( A9 w3 p
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 7 B7 F0 R1 {, f1 p9 r
set global-reputation-list (replace-item j global-reputation-list new)5 n" N/ U! ]$ t
set j (j + 1)& K; T5 b9 {3 U- N- H2 v% z' U% \& g! ^
]0 d8 ^) I2 V0 Q, @$ d1 z0 U( T
end1 `/ H5 T, B. t1 U; R
/ {/ I4 s& a$ G" {7 ]
4 S( n8 s$ p: S' i: |

: O( g% {& t0 w8 N( P, f4 u! kto get-color
$ R  B7 q, _. `+ N0 ~8 d6 C- o
" k$ w7 p! ]0 N4 C, Vset color blue

1 v& u0 p9 V6 a3 Z! x. X* e+ gend
, R+ ]( M7 |( \! R) g% D; j* x# L
to poll-class- Z  s8 _) I2 C/ h( P. z7 N
end
1 d9 {, f* b/ c/ X# {0 [2 n: c
7 _7 D6 s; A2 V7 o4 q% ~2 S  Tto setup-plot1
/ Q+ r9 h$ Z5 b' Q7 G4 A  T$ e9 S  I# S5 X
set-current-plot "Trends-of-Local-reputation"
# e8 o! ~1 F5 p& \) O( w
: [. v' v" O% y
set-plot-x-range 0 xmax
6 P# x5 I+ ^  X' C# M9 k+ p: D

  ]7 ^& \" n3 k  pset-plot-y-range 0.0 ymax

1 O8 r) ]" b- }( D# {6 L. ~end! b% W9 K& M) n8 f7 t% A6 l

1 C) f% ?/ G: B/ W) j+ M/ zto setup-plot28 h" N2 p' `% Q; o$ k6 i, z
+ M& h) R5 a1 ?
set-current-plot "Trends-of-global-reputation"

8 a$ @3 h+ r! O" Y2 Q# J- [1 \7 y& h& U( A
set-plot-x-range 0 xmax

" v1 c! _" r$ I+ T1 b; o* l2 T) V6 p+ D' `
set-plot-y-range 0.0 ymax

* B+ n4 ?+ G0 bend; {4 r' v7 y' E& V# O( ^

' d& b, A$ L9 R' l2 _to setup-plot3
8 K* w& z# N3 ^% `' [$ Y, O" [7 d- Q3 {8 a0 d; Z1 O
set-current-plot "Trends-of-credibility"

7 T5 a$ y5 c0 T' ^/ o. i, w2 Z  C" {2 N
set-plot-x-range 0 xmax

8 {% n9 }3 t7 ~( }( z. U$ n6 V  O. d. J5 h( E' j
set-plot-y-range 0.0 ymax

  p$ C2 g9 P) v/ c2 d5 v9 _7 y5 Lend+ P$ I; T* p% h/ g' s# p. L

# L; z( T# Z, H# kto do-plots
& O  O$ v9 @& \+ [! P4 {set-current-plot "Trends-of-Local-reputation"# ^, A; L1 t- ^5 Z  c! G4 N- t
set-current-plot-pen "Honest service"
" D, \- M0 [. Z& m6 m0 Oend
1 `% z6 p. T' H7 W
( B! n, w9 w# x" W  z/ h- h  v[ 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.
" q9 L1 f# w: t7 V9 i) c
1 ~: H& J* ^- j4 w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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