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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:
" L3 o' `$ x- y4 f- tto do-business
( K9 n! }# K6 z7 n' I rt random 360
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ifelse(other turtles-here != nobody)[* C* S" D, Y- x- J
   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.
$ T8 g# t; O/ {4 j5 Q   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    / |  n. [" b! k: k! U! ]
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer6 p& E( e6 m9 x4 n1 Q
   set [trade-record-one-len] of self length [trade-record-one] of self
) t/ \6 W6 d. p   set trade-record-current( list (timer) (random money-upper-limit))& H# ?2 E" M4 ]9 H6 E% D" c
; B& P8 l1 x0 ]7 s2 U2 @) d  x- x
问题的提示如下:
( p6 m8 o# L  o; O4 S- [1 T/ @% F& |" ]
error while turtle 50 running OF in procedure DO-BUSINESS( z% L" w1 n& y  }
  called by procedure GO
2 ]# [8 X. p. u5 w- ?+ ?OF expected input to be a turtle agentset or turtle but got NOBODY instead.3 p4 t* B2 n# P) s9 T5 _
(halted running of go)( a1 F- E  G( V8 D# D4 n

( K* v$ |9 A& h/ q2 e- P; Y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~~( n: O  H$ ^) t0 a9 r
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! k6 a) H& L: ^4 D; c: e
globals[) ]7 T. w( ^4 G8 k0 T$ Y
xmax
5 a1 m4 w& T! q- r7 n: Symax
- h& W& V2 M7 ?global-reputation-list! P: {$ A! q# B( I: Z. W
" u9 D) m  }% ~. @" u5 e9 F% s4 w
;;
每一个turtle的全局声誉都存在此LIST
, q: t& `4 B; G6 E' k" ecredibility-list& S  x: V5 _( l. d( ~9 Y
;;
每一个turtle的评价可信度2 o- y$ }' l6 n* W, r; E/ {
honest-service
: E& h/ |0 H$ A' r0 ^% T5 _$ sunhonest-service
' z6 n: g! b1 L" poscillation
$ J* W" ^- }/ V+ [9 I: Krand-dynamic
0 m- f& O, `+ m]
3 p% s- G. m4 I) j' m
- f5 f$ K  w& Fturtles-own[
+ I) P  K. h$ l5 X' L, E! f, ~; Ktrade-record-all: I' z0 S- `9 I7 G- Z) K4 G' h
;;a list of lists,
trade-record-one组成
) u* H+ {1 b& @1 dtrade-record-one
5 \9 k( x- p- C, T# M4 c- Y;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
, {% k6 r  J4 q; d; P+ t0 o! x- x# n
$ ?( U( l: k! W! s( y1 j/ 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]]
3 g4 d! p7 Z- x8 ~% {+ f8 Ntrade-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]
) F+ t6 U$ F9 k5 zcredibility-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( o' `2 E6 H% E$ V; K, B1 j
neighbor-total
% |5 b4 y9 }; m9 n3 Q;;
记录该turtle的邻居节点的数目6 `0 S' \- e( C
trade-time
- M5 C9 P6 m# D: l$ t+ j;;
当前发生交易的turtle的交易时间
7 r! }' K: c( ]8 O5 h9 w5 v: D0 I% @, _appraise-give$ Z& j+ y7 a1 y5 R( p( e
;;
当前发生交易时给出的评价' H; h2 Z4 `1 t- t1 U: g5 h
appraise-receive5 v: C1 n8 B  w; X- S- |
;;
当前发生交易时收到的评价6 ~5 }8 }) ?0 P6 Q% H
appraise-time
# T: S; A, u4 Z1 K1 k+ a3 l0 F;;
当前发生交易时的评价时间
- M" V" E4 e) w- v: m$ c  P: e, Plocal-reputation-now;;此次交易后相对于对方turtle的局部声誉+ H! _* i; j6 |) f  V1 ?1 m
trade-times-total8 _0 ?0 ^( x! V* w( H4 \! Q  N
;;
与当前turtle的交易总次数
) Q) ^+ b% F+ X; qtrade-money-total
9 h* T$ `2 F! m( V;;
与当前turtle的交易总金额
. H5 D4 \# g0 u) `$ F+ `( C& ]local-reputation
4 T8 N( p$ K7 v5 H- gglobal-reputation# \8 Y3 l  X' M! a$ F
credibility/ H! ~9 {1 Z  {) q( X1 k
;;
评价可信度,每次交易后都需要更新+ E; ?' n9 Y( F$ _; ~
credibility-all! h. _8 p, T& W$ t" H6 U; N4 `
;;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$ O( E  F0 z9 r3 \0 i

4 v+ m1 i6 `: \# ]+ p: k;;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
+ i) w6 o* S, N" gcredibility-one
; R1 e4 n9 n4 Q( G" A;;a list [i
j1的评价的质量评价,ij2的评价的质量评价……],其中一共有people/ G  f7 ?  f9 T  J7 ]; R! ]6 }! N
global-proportion( Y) u# B  l5 S6 I8 Y0 z
customer
" z9 Q0 k3 l) \& Mcustomer-no
; O: A$ w- O0 rtrust-ok. [5 `" H8 A8 X( Z# l' J+ f3 F8 Z
trade-record-one-len;;trade-record-one的长度. k1 C  j$ ?& O7 t9 X1 b* ^
]0 g3 a4 `8 D/ o" {$ W. [" |

, T6 q2 w8 B9 H% ^;;setup procedure8 G0 E0 [0 d8 l. Z! Q4 r$ \# @' M

$ }. O( [$ \+ T8 i0 ^; o- f) ito setup  i6 e9 m7 N/ ]: K8 [" B

. C, D* I  B% ?1 N/ F" C. Zca

$ C) j7 Y3 {; m+ r- J% k- a' Z" R- V4 f
initialize-settings

7 m: L2 \0 l, A# Z% `! i7 X
% S5 V$ z3 E8 G4 u/ B2 |6 X7 Mcrt people [setup-turtles]
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reset-timer

  B$ K! o5 X* U# c! w
8 p2 K0 r8 W7 gpoll-class
/ i: g% U# P" `4 G, I" C6 ]
$ o9 p3 @. G& h9 p  E
setup-plots

! Z) Z' s# x' \4 g% q( O! A
- x! @! M; {2 `# w( B$ }do-plots
* ~& L6 ?: P# s. M$ ]
end. s! K% j: K6 T9 D  R
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to initialize-settings' X# y  p6 {$ F8 q/ b
) y  ^6 }& h! j2 @4 e" n4 D  F. C
set global-reputation-list []

3 L$ X* t" ^% V. |/ W( `1 Q( F
4 q$ G+ C. F$ F0 N0 tset credibility-list n-values people [0.5]

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set honest-service 0

7 q( R; @8 R& s8 a: k1 u  @6 r9 J' L) u/ X. l
set unhonest-service 0
5 `% L- {# u$ f
0 ~" S: J+ \, b
set oscillation 0

% T9 p7 H* e+ D3 ^+ ?3 C3 y& T
$ a2 g$ y( _% K+ w+ ]set rand-dynamic 0

; e( K' A: g* X- _* ~end; e0 c( h/ Q7 P# n. H& Q3 n
0 l, M% J+ D2 c* U0 j0 |
to setup-turtles , x: p2 s: j/ Q5 v) }5 n; T- J
set shape "person"
& k* r! p5 c9 v4 J$ \setxy random-xcor random-ycor! q1 O: K1 M# }" z7 Q9 w
set trade-record-one []
! A7 a" m1 g# a; g
$ M6 o3 ~3 k# e! b
set trade-record-all n-values people [(list (? + 1) 0 0)]
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' A: p) m1 G* B
set trade-record-current []& [- k, j1 t  Q: C9 Y, K8 b* ~
set credibility-receive []
7 q% c3 I/ C. d, g/ e7 E- N' Iset local-reputation 0.5
2 v7 U; y* M# Y+ Z9 ^set neighbor-total 0
: Q  E5 u- i' o% L' eset trade-times-total 06 n) p! O- }$ m
set trade-money-total 0* i8 G2 [# C  {- ]. E
set customer nobody0 [: q/ V1 K' h7 s% Q6 [, u
set credibility-all n-values people [creat-credibility]
; |9 i6 s7 ]8 B. G( M; Jset credibility n-values people [-1]
0 B8 P; S, n/ Sget-color2 S* {; }; N5 N+ y: R

4 Q  ]9 S9 k/ M7 |0 X4 i- tend
) o( V# p+ N8 a" v  e
" d4 k* ~1 H2 d: l) S4 I1 Mto-report creat-credibility) y' B" w5 I! M
report n-values people [0.5]5 i( B7 q9 d8 Q0 c' ]' T/ m( |
end3 X8 v5 D9 b6 C3 Z( @
* C9 [# r2 m: G* F" D2 d" o2 \0 G
to setup-plots
5 ~" B. y1 r; A8 n" c! i) m& }- e0 R# N3 [# E& T
set xmax 30

/ |$ V6 N/ `4 m4 t
8 g# E9 k8 O; Q0 i" ?set ymax 1.0

8 I9 Q: F8 E. v3 A
5 P) u" Y: c* o) `" Oclear-all-plots
' e6 \2 K5 Y1 w3 V5 c$ K# v) K
6 J- Z# p: Z) K" A. h/ h0 y3 P
setup-plot1

2 X* u) c6 M: R/ C& f5 \$ u
/ }+ h# Q) {. G7 \. q' P9 k8 msetup-plot2

! K# R" _" d, d& F- m" {" P7 b- x- i: [" L" |: x8 ^6 z$ }
setup-plot3
+ F% n6 T4 ?0 r! }  _2 e! s. r
end' g. F2 G1 Y0 [! o$ [- B! z  o

) j0 M" u( H% {# N;;run time procedures  b9 Y2 t; W) T) t' X4 L6 L
( o+ h- [2 Z7 T5 {
to go. U1 z1 Z+ N7 e5 z! m2 E& Z8 c
" y4 z6 ~" i+ c, X& O& c6 @8 j: ~
ask turtles [do-business]
& _3 M5 h) X4 h% i/ R1 L' L
end
7 ^; f- ?' I/ F1 P  r; N9 Z
0 |% j* R  E8 I5 T1 fto do-business % Y. z; J; I6 z) S  B! }

6 p- c+ e9 \! J4 e$ F% x# l0 t, \( U' H
rt random 360
$ R. V- E  `8 M- b; y& i

2 C) S7 B. z$ Q0 x/ ]3 Zfd 1

' p+ Z" {1 [& a1 B2 {0 |3 Q; R
8 u. F* t) \# c2 Wifelse(other turtles-here != nobody)[

3 W3 W, ^. d6 U
8 O& n/ u% E: |( T! Vset customer one-of other turtles-here

1 X$ i% D7 f3 ^$ U" p  u& ^' n6 y4 p9 q% N- J5 y
;; set [customer] of customer myself

, X! b5 [: q* q5 t
: M' R" ]9 S2 L5 yset [trade-record-one] of self item (([who] of customer) - 1)
9 v- D! r, h6 D) f: b) O( R[trade-record-all]of self. I5 `% K/ M% G. n" j
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
7 R# T% F* a. h  c* R9 L  y8 f  Q

: H1 r" Y7 q  Q# f. H7 {set [trade-record-one] of customer item (([who] of self) - 1)$ P& `. u$ W, j: H" f7 Q: L& q+ d
[trade-record-all]of customer
6 d; |1 _/ i: Z  @" i% B$ G

/ E' e7 ^) b7 H$ Z( h/ oset [trade-record-one-len] of self length [trade-record-one] of self

9 c- }9 l: x6 x3 l9 R! O0 @7 J+ J6 I; q) N
set trade-record-current( list (timer) (random money-upper-limit))

+ E0 D, x  n3 \9 `% Y+ C  I3 F  R( r# H' Z0 P
ask self [do-trust]" F/ R% }* Z/ C3 h3 Z9 m; T
;;
先求ij的信任度" f* H+ X8 R( |4 F# z
5 f8 C+ `4 e( y: J
if ([trust-ok] of self)0 B; t. K9 z2 K3 u! z: \: K
;;
根据ij的信任度来决定是否与j进行交易[, d& o$ R: O! A. k
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
/ X& G& r) u1 J# A0 J% z& ~* I2 g- r$ ^1 E' z% |
[
5 V6 ]4 K: a& k/ q& l* t
" W$ H1 z+ m" z4 N' e  u; r$ ~
do-trade
- p" Q* _0 ~' |/ V, E: L, T6 k

, D/ N9 J1 l/ a9 Q9 B: ?update-credibility-ijl
9 t8 q, z6 u" m5 v, O) T- n

5 u# T7 l8 r2 Bupdate-credibility-list
0 E0 m. o( m) B$ `! ^% }
6 p) f0 R6 I, }% |8 z
+ |# z7 i, m- o/ q0 `7 o
update-global-reputation-list

9 U. B9 x( I% x7 l' I8 i& Y) h0 g" ~1 k* ^& z7 |
poll-class

6 Q; {/ y, e/ N/ Q$ f! v! o9 q- o+ E* @+ Q& T# z. n# C4 n
get-color

1 x; G1 ], z/ v0 ?  V: s  \3 j5 e/ w) _' U' j4 `
]]
' e' ?% `0 K8 A$ v' z9 X; m* K3 H" L# G" U+ B/ a3 ?
;;
如果所得的信任度满足条件,则进行交易2 r  c3 G; A" v8 c* O

8 S, i( B0 H+ }0 d[

( o4 p, c, V) ~3 c4 \/ B# h1 Z0 f& s% |' f) H3 G' J6 K/ d
rt random 360

& _2 N9 }4 S8 k' @  F; o8 s
4 [/ e( m- F: {  @& |7 Dfd 1
9 [, p& P. @) \
  @+ U+ K6 L" r! z! B
]

' \- C, W; F- h9 D6 _
4 l" y  h; |! f9 |4 g2 E" i; Yend

6 Q. e5 R) k* I4 T* d; r, F
3 c) U, D- O1 ^, ~$ ~  J  Fto do-trust # A5 a4 H3 T# j# U
set trust-ok False' s5 ^% F6 N0 l9 x  h$ x* _

% \  }7 x, V/ L" u/ }& _: m# Q
2 s# B. X* N- T( Z& X$ d3 X2 V
let max-trade-times 06 q% P0 x+ B/ L7 E" Y( u0 y& ~
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 \/ D4 f. T  e+ z0 d3 n" \let max-trade-money 0
# b8 H2 c3 t/ b, I" ~" G( vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
7 A0 @* y; C( @  Rlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- i$ Z% p+ ~' e& _
  J# e2 |& M! r0 b. g

2 r: u/ T$ A6 Zget-global-proportion
# f- _/ S2 y) O& g7 Hlet trust-value% |% y1 g. l* ]# i( @
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)

3 {# B/ F" m& {" m; r6 v6 D% V, Eif(trust-value > trade-trust-value)7 o+ L! y- H4 C) p: I6 n
[set trust-ok true]
/ J3 @4 j) u+ e' S5 Send
# U) h! S7 W" @2 z
9 ^, V( k+ O% V4 w8 `to get-global-proportion
) G8 Q4 a; Z  g. s9 |3 r# @2 Sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)0 l2 b5 a1 d* j
[set global-proportion 0]. Y6 _/ l$ g$ ?! R8 V
[let i 08 U3 L7 Q, y; b1 O3 x) e9 l1 m, ~
let sum-money 0+ q; H7 I; u' r% N# c% T
while[ i < people]0 l' m" I& e* W# l- {
[% W: a( X: U* _
if( length (item i% S+ g. ]: @1 g: h4 ^, d
[trade-record-all] of customer) > 3 )
  L. Y$ r* ]  G
[& l/ u8 t, j( C- z2 a" M
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))& }( O! E: G4 w! S3 u( i2 N5 W. r
]* N9 r- m1 ?, G2 {' M1 a  ~
]* n* p/ p$ n. f/ T. r
let j 0& S* H" l: C* h) f
let note 0, X6 l2 ]' ^& [5 n, I! j
while[ j < people]
' ~% c( I. Z& F2 G* A- q6 M[+ W! {: w5 F  ]
if( length (item i
2 A7 P5 f: w5 Y+ y# \[trade-record-all] of customer) > 3 )

; @! `& K2 j  a1 `. d% z6 X[$ l: S+ o2 I7 A; X9 u
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)1 g' G3 s4 G+ e- v$ a  f7 |
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
9 E. D3 D* ^1 ^3 N; y% `' b" G[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]1 V" U- u1 x, S. {" }8 k' _  ^
]) c9 A; P; A5 @3 h  l: S1 v
]6 G) `% b& O0 ~4 A
set global-proportion note, J+ P, O1 y0 r: Y
]
: g* s: g; L: Aend8 E2 G$ j& m; S4 S! U* `
% z, t: F4 j7 Q
to do-trade
! G9 H. ~" f0 n! o6 z- d% {) u;;
这个过程实际上是给双方作出评价的过程
: i# w* I% R6 p6 Q% Y& _set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
2 o; L/ R% a, X1 g. E; O& |) Hset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价! J3 Z4 e6 ]( H
set trade-record-current lput(timer) trade-record-current
6 F* ~- T9 p$ n9 N;;
评价时间
1 B- Q& g9 r4 z3 Z3 \8 w) Uask myself [6 I0 P. n" J8 i) g0 t- t
update-local-reputation4 }. t" K/ q: ]; f, z3 d: C
set trade-record-current lput([local-reputation] of myself) trade-record-current
5 d* e7 z. ^( I# i( c# k]: i/ S, e" S3 Y) `8 B
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
' i6 J' t$ |* i3 l9 C1 n5 l;;
将此次交易的记录加入到trade-record-one' o: Z/ X; n" M0 J0 v
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
8 w3 ^6 W% a2 `3 b' g- jlet note (item 2 trade-record-current )
6 e' i* P- r2 v* n( Vset trade-record-current, @% x, D. f; A
(replace-item 2 trade-record-current (item 3 trade-record-current))
$ m% k7 i' Q$ \- G* J
set trade-record-current
/ `, Y% V$ c, V& A& p0 D(replace-item 3 trade-record-current note)7 ]& q4 N6 q+ l

. d6 }( P* F6 ~, z; U" L4 L

7 r2 A% n" b( X  S6 q1 A, u* vask customer [
5 x* K8 j! P* r6 L  M9 T* q6 Fupdate-local-reputation
/ S5 I( c" ~9 }/ u; Xset trade-record-current
0 _* r0 d1 }. n8 Y) _(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

8 f7 I5 @5 ]1 [: ?7 {; P" w]
8 f% W6 s4 E" W8 X( ?. t- J2 I+ X. Y. ~
, ~$ X8 s3 W/ S5 s% S' F# t4 g
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
9 j1 J# @( A: I5 s1 Z: _; B# a3 o
1 u. J; H% `; P7 N  r
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; [1 u: _* ~9 x;;
将此次交易的记录加入到customertrade-record-all
# b# Q0 w4 y% Q/ k- A0 Qend
0 k2 A8 {- z- N& ~8 H; [% N# \/ r9 v5 a; _( J* y
to update-local-reputation
% @( i& N+ c$ \! wset [trade-record-one-len] of myself length [trade-record-one] of myself. m# t) X- O2 n4 b2 L. f

' Y* [5 Y9 C1 i+ Q: u8 \
( x2 j4 V( ~( g- T8 I) |;;if [trade-record-one-len] of myself > 3
! Q' X9 }/ e  p! _4 s
update-neighbor-total# f1 z# ~1 X+ Q/ \1 Y# Z
;;
更新邻居节点的数目,在此进行
( K; U& v" x$ f# }" O6 D. A) r' |let i 3& v6 j9 e5 Q" q4 M5 T
let sum-time 0- [5 _. {0 @# j% G7 T. S- D
while[i < [trade-record-one-len] of myself]
. J2 h% B% e; Z* ~& h4 q* |[
+ {: m' Q& U/ o2 |* Wset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
! G' K; u+ `! }" oset i8 h1 x6 r* J, W; D0 O, D$ b* I
( i + 1)

1 i" {4 f. J) t5 q% ~]/ |$ {- h/ b4 D* Z# M0 a8 W
let j 3
# C/ ~# Z& E" n4 K9 w4 D- v2 @8 m: |let sum-money 0% f* V" X( d! J
while[j < [trade-record-one-len] of myself]
& M- N4 d  Y  ?[. w, k% ~  o8 L# N( d7 e( C
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); }0 V) z2 h9 C4 G* C
set j. y9 C2 H; D( V
( j + 1)
6 N( i( S. ]/ P6 p# F
]
; |; ?0 Y& n! Q4 V0 Slet k 3
' x* j; m/ k- Y  S$ J' |let power 0" N( n8 N6 T* B5 R$ r
let local 0
' i6 m, X- J; D  g: T+ L& d! jwhile [k <[trade-record-one-len] of myself], f% F3 ?8 P1 q; o- v. F  w1 P
[. f& G; P& q. L) C
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)
  }+ R& R4 z2 y2 B1 n5 b$ b* M/ U) bset k (k + 1)! y3 _& @0 _* |/ l0 C8 U
]
. ]& b! h% P5 |set [local-reputation] of myself (local)" T' E! l  S' y. s& C* K2 ?
end+ y2 E1 D: o2 ]4 d/ t

' @+ k* ]  f! a* z. G9 Ito update-neighbor-total, R  I( r- S6 K' w2 \

! w7 R! [$ C6 f# ~; e9 T8 k9 C% {if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]0 L5 M1 r' T1 f

, J# @: i' F* w, j: n

4 J2 c# m; W: |) J+ s8 Eend
' G  J+ X% b) {; d; d8 T, z
* J0 A  M8 ?9 qto update-credibility-ijl ! d- ?( G1 H* q  M
! X8 n6 p8 A" M
;;
思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。9 m' P" p. U1 M7 l7 W
let l 0
1 Z) K. X3 Z3 Zwhile[ l < people ]0 K$ e& g& ^' `5 t( S
;;
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9 b" t+ o: Y' R, H
[
; E# r' J+ O. v+ `* U/ }8 ulet trade-record-one-j-l-len length item l ([trade-record-all] of customer)) b5 n, n. U8 j" v
if (trade-record-one-j-l-len > 3)% j' Y1 z+ F) v
[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
+ K8 |4 ]( \6 g; }8 w) M! [' elet i 3$ M' H8 {, f6 h0 l
let sum-time 07 z' |- c6 A. \
while[i < trade-record-one-len]" s3 f2 Q# `( B$ a1 l: w1 t
[3 r3 f2 z# S" l
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' h# g2 k: o2 B4 Sset i
: G/ O2 h8 v$ Z4 J' r( i + 1)
# y# y# }" p3 H6 M9 D- S3 J
]
/ ]9 \. `& J  Q& O* ~1 ?! _3 tlet credibility-i-j-l 0
9 F' W& |& O4 y# F, y;;i
评价(jjl的评价)
, ^) N  I4 l0 t+ G$ K# rlet j 3
* a/ S; B; p: E& x) R% j" B' Alet k 4+ l2 l1 ?# o' B+ `; \
while[j < trade-record-one-len]$ [( |8 d8 W6 {) t, [8 m$ h
[
2 `- M* A6 _7 O" s8 a7 B- P% ]; B' mwhile [((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' \  _" @, M6 x. O2 {& @+ l2 L* G3 u
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)! }5 P% Q# U, E& A( _! B2 d
set j
2 p- @$ w2 T7 v# t7 Q4 _, R( j + 1)
+ X* \0 u3 h" r3 V' f
]$ _4 s' d/ j; \# D7 T- H% k3 \2 H
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 ))) p1 X. B" K7 u  O- j, U

+ |3 t( H9 ?7 q8 ^! i! I: T- q

6 K* ~0 C! w5 H9 A2 }7 y% blet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
" u* c- d" V7 v3 a% L; U6 n& r( e" z;;
及时更新il的评价质量的评价
# s0 b4 k% w- Z8 K9 Y) h9 T2 u- oset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
8 K" c* Q. Y" f) Y# ?set l (l + 1)  x- A9 C& t$ z4 X. J
]# z4 k. m4 v9 D) V* E; J$ `( C# n' ]
end3 x: E9 p$ u1 Q+ ?3 S

2 W  a3 r1 g! X$ X% Uto update-credibility-list2 y  D" c$ l+ [
let i 0
# F" K/ p9 U, Cwhile[i < people]! \  @( K* f; X# d* y, p. ?
[
5 D0 r- S% B' n0 Q, V: D7 I8 Ilet j 0* ?/ Z. k+ C5 N: Y3 o7 y- L% F
let note 0
, k, ~7 K4 U  I, x( Alet k 0
& O' Y  Z# E$ U- A- @;;
计作出过评价的邻居节点的数目
3 n: v* u% k# owhile[j < people]8 I7 \* ~6 W2 p0 m  i
[
8 C9 J: S. ~# G  }3 O' Sif (item j( [credibility] of turtle (i + 1)) != -1)4 |% o; n0 _+ w: R
;;
判断是否给本turtle的评价质量做出过评价的节点
; Q0 G" s' F2 [' B- B2 a[set note (note + item j ([credibility]of turtle (i + 1)))0 q( g4 b6 u* T
;;*(exp (-(people - 2)))/(people - 2))]

8 x! J' z4 ?( D# x8 {. z+ Kset k (k + 1)
! E- |$ t- \. S* ?) Z]
1 _& C9 q0 ~- t; rset j (j + 1)
: a0 D3 |) R- m  P; c, u]- \) N4 U. w$ k& f" p$ T
set note (note *(exp (- (1 / k)))/ k)7 W6 \& V: D+ M4 \7 `) K
set credibility-list (replace-item i credibility-list note)
$ p  ?3 ?. m7 Mset i (i + 1)4 ^) n6 [: [0 r- `# B' g
]- s0 U/ P5 _) ?1 q- Z
end
$ Q: P. `( l7 u+ R. Y: V( P! |# S/ \5 T( \4 @
to update-global-reputation-list( t" _- U' L2 ?3 S
let j 0
& Q6 H& D9 ]. }& V# h0 hwhile[j < people]
& M1 z; \. k2 D1 K[4 N* s2 c4 W# }
let new 0
4 _2 Q" Q9 d) ~% e/ u# `( y;;
暂存新的一个全局声誉
) h& @5 P- t# b8 Y: K* m) ]  p; Ilet i 0. ~/ K& J% L5 M# i
let sum-money 01 F2 O" X, ?: t& u6 _! t0 w! E& Z
let credibility-money 0
" a& t3 j! r0 hwhile [i < people]
: c! z0 _8 u8 K$ L* q- E[! R* o+ ?# k8 C: k& z1 F' E* w  V
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))* A4 Y; Y( J* M, o: _8 `+ W
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))  C. q$ y4 f' g. d7 h: ]  Z; x
set i (i + 1)
. G* G9 \- G2 H( y* |: o1 h0 i( L]
- \" Q5 ]) O" y7 D3 J) @6 ^4 Alet k 0% q' ]2 [2 U! f/ Z! r/ K2 _
let new1 0
4 S$ _+ }! k8 V3 n) q! vwhile [k < people]
, g  u4 U& S6 f9 X4 y1 \$ e9 j[' Y! Y- k0 v* S. k, r. B
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)
: q# O  e0 f: R9 s* D1 s! h2 Cset k (k + 1)- U- V$ h  J+ x- C' Q
]3 i9 h& q, h# e2 P0 c( E( p
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
; Z+ m% e& q, l& y6 y& Zset global-reputation-list (replace-item j global-reputation-list new)
4 r/ N/ U0 ], }& M. m( Nset j (j + 1)
$ e  _: P" e1 X& _0 p8 F( {/ h9 G]# z8 Y! w# u* w; r5 \
end
5 n( Q, v2 K6 E/ x3 y) t6 [# h& @# q
: m* i3 R. Z+ T  ^$ Y! L

: h; v4 ?- r- n2 P# y7 g: u# pto get-color1 V( C6 J, t3 M' D  L. o3 {  [( M
) q$ e% O- P, i. R; Q* y
set color blue
' e# g2 t! E9 p  Q
end+ ~! U) z, O' F/ o( n

3 `4 \, @5 w" f& N/ W! `& c% `to poll-class
5 j# A3 L0 w) w2 W2 w2 a8 bend4 s. J  _& W1 C: Y3 v

( e/ s6 L2 H0 v1 P% ]to setup-plot13 U* k5 V1 ~* P% I

4 u' G1 \3 j! P3 Q$ @set-current-plot "Trends-of-Local-reputation"
$ o# o1 l# u' D; Y6 p* `

- E+ f- q  v; m( ~% @* Q2 Yset-plot-x-range 0 xmax

9 U: y* o8 A) J' K/ H" {$ V" \( V( ~4 o5 t
set-plot-y-range 0.0 ymax

  P/ d- [7 H# M" k1 j& q1 Hend
5 K' L% N0 x/ R; L  ^6 u
/ A3 T/ w% L! e9 l% W" ^7 hto setup-plot2# Y" w! t4 \4 m, I! T

0 }/ m1 X  e, D& Gset-current-plot "Trends-of-global-reputation"
( k* D) W9 T8 F) g% S

" h5 O! u' W6 C$ Y* X5 A/ Iset-plot-x-range 0 xmax
" f; b% ?+ V; U) g" p5 _( F1 u1 C( M

5 @0 N/ {5 }5 s+ E6 sset-plot-y-range 0.0 ymax

8 ?7 y* F, K% n) _5 ~& `# T2 cend
4 o9 X5 Z7 K2 q; ?3 X3 @' r2 p. _; {7 n+ R$ M7 z. l2 V
to setup-plot3
; a& m) @% X" c& v- |
' p1 _" v' _9 |5 Uset-current-plot "Trends-of-credibility"
+ f+ i; B( j* D% W% N
$ M& W% W6 P4 D$ `3 q1 P" n
set-plot-x-range 0 xmax

' s7 Q2 e' c; y% ~
3 p3 ^8 H. v: \set-plot-y-range 0.0 ymax

% v+ a) P( S9 n2 rend
/ r* c5 y  ^) I3 c8 Z
- J4 K* [# [% i& O0 oto do-plots
9 Y* `. w' k. u3 }set-current-plot "Trends-of-Local-reputation"4 W  H$ ~9 E5 C6 H0 n2 M7 k
set-current-plot-pen "Honest service"+ D1 m' Z# m- z  J- z
end* y& x2 L. P; W8 I' J. W1 x2 C. c
3 b7 Q* }) }% ~. _; x8 s* t6 z
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ]

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发表于 2008-3-19 11:33:07 | 显示全部楼层

有点困难

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

还有啊

发表于 2008-3-19 11:35:59 | 显示全部楼层

还有啊

能不能传nlogo附件上来,一个一个敲太累了,好长的程序啊。
 楼主| 发表于 2008-3-19 12:47:57 | 显示全部楼层
嘻嘻,不好意思啊,现在把附件加上了.
, k2 z) @! J/ f0 a2 z: W* x
5 y: s! k0 x) `; j  K* ?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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