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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:
4 D* ^5 k) a9 _' a: Q% N1 Xto do-business
) D8 ^* M/ H# _# X6 ` rt random 360
4 ?# N) c6 S, r4 J0 \7 R4 p fd 1
! Y1 ^5 P' Z3 S; j ifelse(other turtles-here != nobody)[
  K; p) h8 K8 G& N/ ~$ f( C   set customer one-of other turtles-here ;;这样一来,customer不代表了一个turtle吗?但在运行时出现了问题.
+ \) b! V. V; n" I   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    8 b! {$ G" H( s+ i: L2 a
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
) O9 b. I1 q- S2 D   set [trade-record-one-len] of self length [trade-record-one] of self
8 T4 [* G% l& g5 ~' U& b   set trade-record-current( list (timer) (random money-upper-limit))
$ ^  y+ S6 f: Z) f( H* D) `5 T( w1 f9 S
问题的提示如下:
  M  X% k  h. s! E. Y, }2 X; x4 U+ }* G3 |
error while turtle 50 running OF in procedure DO-BUSINESS' E$ A$ E8 g) n: d8 e/ T
  called by procedure GO6 I$ {& _, C# t+ G+ K$ g! f% c( j
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
. n( e8 F8 F7 I; x- q4 h' T+ v: v
(halted running of go)* t  G' Z2 \3 ]9 `: ~- S( F

) a' N/ f$ L# c/ E* y1 h" 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~~) v$ o- L# ]7 f% W
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+ s+ ]3 ~8 h# D' t  L% ^
globals[, j# h. E0 x0 G; H0 n+ a
xmax( x4 f3 h' N+ s" ]- v. ?0 {
ymax( [9 \, r. z1 }' V, U6 F
global-reputation-list- u& [2 ^: A- R6 M& h" E6 Z
* G, ], r# M) U: g
;;
每一个turtle的全局声誉都存在此LIST
' a3 f+ \- P5 S) u$ K: z( [credibility-list
# A' Y- V; k& Z8 p;;
每一个turtle的评价可信度$ l( K+ d$ g6 y) v( }
honest-service
  I: b$ ~5 Q# n5 X/ Punhonest-service
0 B3 s0 T* p8 }oscillation
5 E( T4 o# c, l; G! W0 vrand-dynamic/ [5 B! _4 M6 u7 a, D7 M- _
]
* c2 Z$ ~. q: x$ ^, s8 E4 ]2 {: U/ o; U' I: z- P
turtles-own[5 M5 U( j% G& p/ a
trade-record-all6 b6 Y6 p+ ^0 H
;;a list of lists,
trade-record-one组成
' P# Y: }5 X" u( l- `. Ftrade-record-one/ o7 h. A& M4 Q$ t! N! q
;;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, ]% g3 [1 ^) q# k8 Z
7 ~6 z: a" S" V
;;[
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]]
- C: V- g& W# m4 [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]0 Q( T2 g/ \1 j: e1 A
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list
8 n9 G% U4 E  c( W2 P  B, rneighbor-total
8 S$ t- f. T/ \! d8 B;;
记录该turtle的邻居节点的数目/ s! c' v/ {0 w
trade-time; |8 |4 ~% l8 E0 [- s5 e
;;
当前发生交易的turtle的交易时间
1 ~7 X" ?' E- b5 b3 C2 V3 G5 D% T& vappraise-give
" b* F, c7 i0 T$ l; }- P  q5 r& ~* B. [;;
当前发生交易时给出的评价
% g) Q2 R, J; C& ?2 fappraise-receive
# N% a6 q/ U9 W- E& Y2 u8 R- ];;
当前发生交易时收到的评价' ~" T6 V* E4 U6 Y! `
appraise-time
. X3 z; I9 P8 c;;
当前发生交易时的评价时间" \: @6 y' B+ I+ n& h$ V
local-reputation-now;;此次交易后相对于对方turtle的局部声誉" u5 V; d& W/ C
trade-times-total7 }) W4 k  x( C. Q( F' }
;;
与当前turtle的交易总次数
2 f  H. U) F$ m; q+ x) p9 _' htrade-money-total
& n% x/ @; N' n$ m( c: _& Q: I; \* I;;
与当前turtle的交易总金额4 a, P& x" W5 S( r8 l& R
local-reputation
, m1 D: P3 z" Y3 tglobal-reputation
4 K( X( P- ?- Zcredibility- _$ }5 _1 v) o
;;
评价可信度,每次交易后都需要更新
4 {5 F5 W6 c0 s& ]credibility-all7 d, Q' q& K  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$ k0 Y" T) S4 u

' b; M& O% m: ~  V/ R" B8 I;;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0.56 K0 H4 ~' d! c/ `5 p- s& w
credibility-one
% K4 Y( N; i* ?( ];;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; d4 y; r0 S% X" M" j; c
global-proportion& ~2 W1 O. f8 y2 f" `- U9 r
customer
# J+ M! ^: V0 s1 F6 dcustomer-no
- N- `4 o8 s3 \5 v3 htrust-ok0 I: j0 K. a9 G6 {
trade-record-one-len;;trade-record-one的长度' y* R, @  B" W- Y4 j
]6 Q& u- w  J5 Y+ x' w7 J
  p9 D7 L/ {4 ]! _, h" @$ i% a
;;setup procedure2 B7 \6 e; i1 `( R( V( z( N  X, z
, C; D) y& }' J& g3 g3 [  h, G& r
to setup
" C) G7 Z7 u/ @8 B
9 b7 C2 x- P+ s. a5 v% g- }1 ?ca

& s5 r, Z( [, T! k& p3 G( J; W# i+ \7 k
initialize-settings
# M  d+ g; J/ Z$ p+ F! S5 S

- K1 z8 w8 Z* {- F6 C" ^crt people [setup-turtles]
, N% z! I! N7 J
  G/ X6 b3 s1 B7 e, ]2 V
reset-timer

# i9 w. |: r8 K" _& [6 b% a4 a
" \1 Y; `' m( ^$ n/ ~% v1 B3 wpoll-class
1 V( U* T* i9 i( L
# v- g9 P3 g' x* H: O9 _
setup-plots
) `1 p7 S- r* M' q4 A+ Q

8 c7 @4 U6 V: V' t: m  L, y5 ^do-plots

, C! e( V6 V! x' k; n5 h: qend
% ^. }# |/ H1 @$ G
! |, `: J; n! C0 tto initialize-settings
: T( p+ `. u& C7 q# d1 x/ r# t0 Z6 N8 j8 M
set global-reputation-list []

! P* s5 p1 U$ n
. n8 w, Z. L# u' P( W4 z1 Tset credibility-list n-values people [0.5]
& d2 P+ v! X1 Y8 w6 M

1 ~' H* O1 A# h! V) p+ E1 M' A6 Kset honest-service 0
2 t6 a9 l7 f' q( \

0 f, w( K1 _! Q5 j. oset unhonest-service 0
- ], ~, C/ D7 \& t- r
' G1 D: ?4 Z( D! k! C9 F
set oscillation 0

: R8 o$ a) P% j- \* F/ H+ [' {2 a0 `  E
set rand-dynamic 0

* l, D- {* T5 F. }4 X+ Q% K4 tend
0 Q9 _* b% }8 N1 K1 I1 V3 V& Q) `. r) p5 r0 N: ^
to setup-turtles
% b  S; ^: j; oset shape "person"
( z9 U5 d: D1 ^! H6 U5 C& y8 k  Z  Ksetxy random-xcor random-ycor0 A3 V7 ~; Y/ R1 i4 W9 @
set trade-record-one []
4 J, w' z: t" Z/ m
& F, R) t3 [1 I1 ^, f/ A+ a
set trade-record-all n-values people [(list (? + 1) 0 0)] * q) t3 M' g; ^# @0 p: K9 Q

% P! X5 o/ k( `* uset trade-record-current []
$ u. h; J+ Y5 x) b) l& Iset credibility-receive []) x4 d! x. n' O* r
set local-reputation 0.5- r' l  I6 B7 z9 s4 _+ O
set neighbor-total 0' P2 A8 @7 G0 W+ ^5 `
set trade-times-total 09 ?. \! r1 p* r% O
set trade-money-total 0' R) q. Q/ W2 T" Z1 G
set customer nobody/ M0 }1 }! c: F5 I- ?( W, x
set credibility-all n-values people [creat-credibility]/ d7 c: Q% ?: e1 r
set credibility n-values people [-1]
" M+ q# y. [0 V. Iget-color( U$ _$ P8 L# {
0 j. b7 S6 e0 K. g' j2 @
end
& f) m  X3 o. G9 k8 S4 ]
0 Q: U: {5 d+ N5 kto-report creat-credibility
  G6 a8 ^9 @; |" r; h- H, oreport n-values people [0.5]
; G" k2 Z6 R; I! t% p, l& Xend
4 M* U. {7 r; x) E! A; i9 X# Y9 U% X: O$ l5 \- c) \
to setup-plots9 c4 i8 G- W2 Q" U; H8 v2 S
& F2 `6 |8 N' H3 O: Z
set xmax 30
( o7 G2 \9 p& q- [/ X

. s/ h# a: l  M3 X0 N% S& W6 ]4 wset ymax 1.0
' Z( T/ |& {) E6 n

4 D* d7 V4 d5 F5 c" Q. S$ Iclear-all-plots
* a: }' C$ Y5 \# F$ s2 C8 F; N

; p0 P, X; ~% o' A% \3 V& }setup-plot1

3 R0 [7 P: N6 V$ [
2 s4 d5 o2 ?. {# O& R. s- c: l$ Hsetup-plot2

8 u* z$ k( h; C( f/ L: K( ?
, i1 |  D, Z) I  h# \setup-plot3
! z3 w8 ~8 o7 D& U, b
end
7 \% t4 g: A3 ?/ t% J
. |) I. \: _; Y# O5 R. Y;;run time procedures
8 }# r# T4 {/ y9 i7 H2 \  ]" z+ E7 x! Z. T
to go
8 q3 _5 q" B& m. M" m( @3 r
2 s* r$ c0 j* u& q  L+ wask turtles [do-business]

. q6 J: [  F. Q. Dend
+ H! D4 z9 N- g4 j/ L4 S: {
4 t, _7 s6 }) G7 @to do-business
% a1 L. F) a0 C; I# f2 d

0 Z1 e' R9 b4 u4 D6 i3 M: N
% U% v. v$ z7 [2 F  z, e/ Drt random 360

* P2 }0 m3 J" d6 g- [1 _4 m. J. e& v: `
fd 1

) f5 y! n% D6 P5 b+ b& [& |( G$ d  f2 n4 H
ifelse(other turtles-here != nobody)[

$ E7 G) S/ i( V5 A: o. }
, i5 D/ Y; Z) y: |  t8 eset customer one-of other turtles-here
1 e$ i+ I" N$ ]
: q7 C' l8 }7 u& h7 _2 h
;; set [customer] of customer myself
" Z9 F& G/ }$ e& ^8 y
2 q  ]9 _$ B' M  ^
set [trade-record-one] of self item (([who] of customer) - 1)' Z# V. q7 q: N2 M  F! Q9 l% p
[trade-record-all]of self
, ]4 A0 q" ^) ]( ~! \! d& O;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. W- d; G8 N. h3 C

- @6 O4 s$ Y. w. Yset [trade-record-one] of customer item (([who] of self) - 1); v+ ~5 w# l- ?6 O+ k, d
[trade-record-all]of customer
8 g0 M7 k. ^4 T
6 [$ E3 c+ N1 I7 J5 ^2 |5 w
set [trade-record-one-len] of self length [trade-record-one] of self
( q6 t) H! H6 l; y* S  p

. ~# U( S9 f& [* m. s. ^set trade-record-current( list (timer) (random money-upper-limit))
9 s4 e1 U, \7 P8 j

1 r9 @& p1 R0 T% N: mask self [do-trust]
/ f* d/ q% h. l& \% i! ];;
先求ij的信任度  M) w/ W/ }$ x' U; j: D0 N
& p8 G1 D9 ?; ?& l
if ([trust-ok] of self)
- A  f9 b  w1 K" I% A) F$ [# p;;
根据ij的信任度来决定是否与j进行交易[
- j2 c# I/ q& w& M! N% j" m; k. `$ gask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
( e3 D" B. |9 K' [8 A2 b# c
  o, L7 s1 O8 h! }+ ~/ `[

2 D7 b9 X* g7 F0 l0 ]% T
; y! c/ W& m2 N5 X$ }do-trade
3 E- p0 c; E) F% f% T
- J) L% L2 b; M' ?
update-credibility-ijl

( D$ J$ e2 L# j4 T; G" v- P/ X
$ F2 S  c' h3 }update-credibility-list  Z% ~) e; H5 s
7 T/ z0 \6 D* n- {9 Y5 Z
9 ], A) _0 @) x
update-global-reputation-list

% D; k5 B" O* r1 i7 R8 n0 e) Z. D. L. \
poll-class
: j- x" x3 G& A. o0 t" M7 z
$ `4 d- s# w1 i, m  _6 x( p
get-color
2 K7 P  Z; J9 V0 u+ {1 q
4 O' e7 C' M9 g9 g' r! D- a
]]) D5 C- s  Y& Q4 P1 `' V1 R- T

2 ^" T: d4 X1 @- ^: N;;
如果所得的信任度满足条件,则进行交易5 Z5 T8 u/ Q1 A) D7 `# B' X7 z

9 x( w, E7 N& N% s! p8 ^[
9 F6 h& n# a! L* y  r

- X4 b) z# B: [  R: s7 |+ ort random 360

$ M3 w8 @6 w' f1 `' c1 Y
+ C% V3 g) }! A5 H& @" q& |8 sfd 1
  N8 k- q5 G8 t& Z! b
2 F8 c( W& v& ]* {# q
]

  W1 G7 y$ L2 y
8 o2 F8 N, d% F8 aend
- o/ k6 r. R9 w6 P3 q( t

: J! M( s! D. e& {! [9 lto do-trust
3 d) `+ n) W! y% y9 aset trust-ok False% m1 v7 S; K' h! x. v2 W% @( W

0 N+ ]" D# ?4 ]1 x" Q8 y" d9 y

5 b& c; j, ]2 c% B3 v3 z- Hlet max-trade-times 0" I# u! _; `: f
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]; S; O* R! F; z
let max-trade-money 0+ n9 E! h8 E+ s% i+ N) e1 U; w
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
" u6 t, |3 X# t! u3 glet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
/ g' r5 k6 x; Y/ y2 y; j1 d" T2 |+ ^1 c; [0 E* d3 J1 P. x' d

5 Z5 h8 {0 I9 b& rget-global-proportion
0 ?4 B. n; }* P" ~* ~* W/ I* blet trust-value4 G) Z2 X0 q" j, h% y
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)
- j' u* }3 Y" P2 ^$ [& z
if(trust-value > trade-trust-value)+ ~9 z. H% U& P9 a9 g  C8 z
[set trust-ok true]
0 J0 |5 H7 G9 H1 [8 zend# h8 B4 w3 c+ u( E1 X2 I
- {  m# l  ?8 F/ _! w/ [
to get-global-proportion: }8 ]9 m/ m) V# e7 ]
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 V" a& w2 r% A6 |8 u8 D8 g( N8 N; n- x[set global-proportion 0]" H. d2 o9 h$ b: N2 B$ V
[let i 08 e! U5 J# W5 C( m
let sum-money 0  `6 M/ g5 H0 ~
while[ i < people]; ~6 P: m) B2 U/ w
[
9 T- o; r6 O- I9 I+ eif( length (item i
- C) O7 ?  m: [" R0 h[trade-record-all] of customer) > 3 )
5 `8 ~0 b' L+ `/ x- w1 w
[! v( B, v( _2 p8 E
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
% w7 b  [+ H0 I" O& G; Y$ I' B8 j]
5 m+ I" N' ^% b) W]
. I- v, u; T) t9 olet j 0
; S4 l$ G$ K% c" e9 ]1 _let note 0% b: O- H7 `1 h& g
while[ j < people]; v# x) X( {$ U! t9 X0 y
[
. q7 v# D6 h% T" O1 _6 Vif( length (item i
2 N9 p2 _, C# l, J: Z. j[trade-record-all] of customer) > 3 )

5 G. i7 [  U/ c[
/ g0 W) L7 y$ j: Y$ s, B8 ?ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)0 u( S$ G! H$ I; D; U
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ c( A! [8 r" i( M% Z# k& N[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 V. T, n4 g; |, }
]" L" ^! E3 X$ }6 y2 L
]  z2 E: D; W9 Q% i- n$ n2 K, j$ x
set global-proportion note
6 O3 z0 e" b4 i, p]
. T" G% N- Q5 o  k8 Cend2 G7 B# o; _, w, x1 e2 `1 m+ [
* W) T. h* Q" b  D* Q) Q- [
to do-trade( U- y' @! G, [5 C
;;
这个过程实际上是给双方作出评价的过程
, Y+ V* i7 I  b: a) jset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
5 T3 n8 N9 N  e* o! oset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价0 i  h) r* C, D0 I4 a
set trade-record-current lput(timer) trade-record-current
" u' d1 U8 s$ {+ }7 W# S1 D% v;;
评价时间( y) p9 E- T6 y2 n% S2 V/ J& X" A
ask myself [( a9 |! w% y+ }
update-local-reputation
" }( p, k- \& B' M4 [# f+ J1 Kset trade-record-current lput([local-reputation] of myself) trade-record-current# W3 }) g$ L' ^  H: s- y
]) L  _% d- H" B+ }9 r! Y+ a) j# @
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself1 F; p, J. y. L$ h
;;
将此次交易的记录加入到trade-record-one
8 m' M' S# @% V2 Q, q" e* H" vset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
, Z4 E' [' {" @# clet note (item 2 trade-record-current )
. p. O3 p  |5 K/ r4 v1 l, Qset trade-record-current5 `: ~' ~5 v: X, F" [+ L
(replace-item 2 trade-record-current (item 3 trade-record-current))
, F, _" W$ O& R4 ]5 b$ Q1 G
set trade-record-current
+ k) H6 U, H4 \( P8 g6 N) l& W: U6 R, T' m(replace-item 3 trade-record-current note)' Y: `5 U2 ]6 w! }5 r
) a; B1 \- [3 I  c
1 I; g+ {5 g7 B+ j, M
ask customer [
0 K) B8 X) Y6 a/ W* _. p6 Tupdate-local-reputation8 {( @8 L& p9 Z+ B5 t- i! W
set trade-record-current8 Y+ W- s/ s1 Z
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
; H- N. B$ \4 p. m% G8 F9 b" ?
]
+ J6 e+ p6 t  g* x' C! s0 I% H6 n4 r2 P" ^; s
5 m9 |) S1 l% @; e1 h; z
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer5 U+ }* x& V- T7 p
3 L3 x! h! f* s1 H
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))* L7 A  T5 j) R9 r
;;
将此次交易的记录加入到customertrade-record-all# u# B- b9 F" J) a. x7 T& m/ z" j
end
0 ^" d: T% R6 v) q) \, B
/ q- C4 h# p8 d. S9 jto update-local-reputation) d0 ?6 ?) z. O: }  k7 [
set [trade-record-one-len] of myself length [trade-record-one] of myself2 m: w8 Y4 g8 |4 ~' E
7 `+ w  W; P1 r5 \0 z
- Z0 f: h0 ~' [( m' x1 W5 g
;;if [trade-record-one-len] of myself > 3
) q6 N+ R; h, O+ X# K, r0 {
update-neighbor-total
( u/ V& J  A8 p;;
更新邻居节点的数目,在此进行. h/ [, y) l; p3 f$ C) R+ R4 m
let i 3; b# H* t( h) q
let sum-time 0
! [* D+ Y: W4 J$ H9 b+ nwhile[i < [trade-record-one-len] of myself]" p# ]( J' `$ `8 a4 W% t" B2 U8 L8 r2 w
[  r; e/ p; f: w9 o' I7 P5 d8 f- }
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
* D  w% X& V0 rset i
6 b- [( Q3 `8 N' h: k( i + 1)
. c9 H& a' f# U, T! z
]! T: m6 T4 Z" Y6 h
let j 3. [7 q5 b4 B# m' O5 Q
let sum-money 0
; \6 o7 A" U! I% ^5 Vwhile[j < [trade-record-one-len] of myself]/ V" r! u- q3 _: G" P. ^: n, W
[$ t. o- b2 |, d/ ^- G9 S
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)
$ w, |0 @* f5 `# mset j. ?# p: t& {% ?' I3 Q5 p" ?/ Q. C
( j + 1)
( G7 M0 g" m) C
]% w: W5 T. h4 i% R/ i1 c2 ]
let k 3! q. _4 ]0 |* y. p$ N' _1 y; g- {' q& i
let power 0& Y$ _$ s" Y! A' W( x% [+ M
let local 0% I# `) {' s0 ]2 u
while [k <[trade-record-one-len] of myself]
9 |7 V) u! b9 ~9 v/ M8 c5 _[2 C) C' G. ]9 H6 x9 y
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)
7 T. _- t' H' |, h  P$ Eset k (k + 1)+ |1 a( U: ?' C9 k) j
]
  i) I- ]8 o! w) U1 `set [local-reputation] of myself (local)+ ~( k2 Q3 J. ~4 a$ ?" U
end3 n. ^! o( |! m+ K

9 }+ m6 O$ t3 D8 P8 vto update-neighbor-total& w. \3 u  v; V9 v/ h. H, m
& X; ?: a3 Z# a; E" T4 g2 d
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
: J7 ?. c- {: p+ I9 R& j" S
* V: v5 I( W' l2 T0 x8 W# [( i
: H( b" B* c# P* |" O! B* g
end
( [7 u/ G5 q2 E2 y! w9 }
0 {' w! V0 ?/ {to update-credibility-ijl 2 J2 m* x3 Y7 u/ v* d; c

/ w* p5 J- ~" x3 L0 ^9 O8 N* A, I;;
思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。' N* n) C+ H/ P- \5 s5 R
let l 0
, \+ o; x3 h) z0 K7 g8 O) h+ Jwhile[ l < people ], x- }( B8 I* ~2 g
;;
j的邻居节点的trade-record进行扫描,以对j的邻居节点的评价质量进行评价
7 V& D8 x  Y; ]& n. M8 o[: m9 P* I; g5 p, c9 w
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)$ ^( ]5 Z$ u* T) _1 J! E0 n
if (trade-record-one-j-l-len > 3): ^" x* o, Q2 v! Y
[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
6 H* M5 J" I7 z6 k, a3 x1 nlet i 3
5 i: t# r9 X$ m; Blet sum-time 0
9 X6 k. T4 ]0 O* j. Cwhile[i < trade-record-one-len], t9 R( D' N" P& Z
[- u8 g$ N( s" n" o) }$ A
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ); O  x% u" z5 ~9 m2 G7 d# e
set i
  v# @, M2 B: f( i + 1)

9 ?4 B; M, w# ]4 T. G/ @9 P]. I: V7 x& |( E% ^: J" @
let credibility-i-j-l 0' G, w+ R! M- r6 j* [$ K% O
;;i
评价(jjl的评价)& Z- g3 F. {5 n7 ~( L# R
let j 30 O! V1 n5 q& `- {7 {$ c: L. k
let k 4
9 W% O3 u) @" uwhile[j < trade-record-one-len]) F) y5 Y5 _! F; X+ o! K* ?
[
4 U, t9 W. a; u# P0 ]$ ewhile [((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( I+ K$ Q1 q7 ^; s1 N' V9 Y) J% V
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)
# L+ N2 l. U' nset j' _0 @! D( e( G$ N3 e( s
( j + 1)
( f+ u1 O4 U& P6 @0 A
]
) H* S, E: c3 L$ G- K$ @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 ))
$ X+ d1 _& U. N( ]# F) \  \
; @* K0 s2 A8 h& `& k8 g" h4 J
, \& }/ z' l; l. {! H
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))* B- w9 v" M; l+ P; r5 ?1 \
;;
及时更新il的评价质量的评价
! G4 t' }$ _7 O1 J! Eset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
5 W2 B7 v2 M; Q' _1 Xset l (l + 1)
3 E. W( i; g# u( B) e7 }# u( z]( b  g9 v7 ?7 A0 Z: p. b$ [
end/ l. F. W$ ]1 m# e4 g

& E' L! g" Q* dto update-credibility-list
& W# e2 D1 X% C; h! U0 U8 ilet i 0; u; W% K- [! s- G
while[i < people]
$ p# Y5 M& S# i- G% ~# h[
" \+ l9 h0 y+ X  ^2 m4 Mlet j 0
! ^6 F4 n# h3 w. {let note 04 U* ]2 `( ~0 ]% c8 n" v6 u1 h
let k 0
/ B7 P9 O8 a' G: Y( @) d# y;;
计作出过评价的邻居节点的数目2 L& ?8 O+ H6 L* w
while[j < people]' q$ r! t% ~7 b( l" h3 A
[3 G/ w7 E) i5 ]5 c& i2 e
if (item j( [credibility] of turtle (i + 1)) != -1)$ Z4 d2 q' F1 I1 T
;;
判断是否给本turtle的评价质量做出过评价的节点- j' K1 L1 h0 v
[set note (note + item j ([credibility]of turtle (i + 1)))
- J4 c0 d: H0 l$ L' r# T: Z8 l4 D/ {;;*(exp (-(people - 2)))/(people - 2))]
7 s) i# b, O$ _  X
set k (k + 1)
$ {8 l" w5 R- a  {( A$ t; V]: {) H4 S3 a7 x- [. L& t' A
set j (j + 1)# h5 E$ e' y9 }4 |# S* p& c0 H
]
6 ?' ^1 {8 E8 B- ^, [, Pset note (note *(exp (- (1 / k)))/ k)
! S7 E( R: M% l. ]( g+ J& ~9 `" ^" Dset credibility-list (replace-item i credibility-list note)
" E% x- \# t" dset i (i + 1)
0 i8 k8 \3 p) F- k9 z4 y- H]6 h* i/ R* P$ ?9 m% L( ?8 F
end: C' J9 Q4 w; ~9 q  Y, A

" T  Q: ~9 k+ `+ fto update-global-reputation-list
5 K6 M* K: }2 @" }; l% K. olet j 0/ g0 E5 q1 C6 J' S  A
while[j < people]2 e) t1 }) |. ?# t! y: l
[2 D9 M6 u" R$ R
let new 0) ~9 O6 f" z5 a
;;
暂存新的一个全局声誉0 E, f! c  D5 n
let i 0
1 \) [- a6 w2 d5 @* f3 B# i! ilet sum-money 0
5 u8 y( @4 L3 |( U- dlet credibility-money 0* z0 _( [; r2 N
while [i < people]
; U7 D, R; O. Z  ]9 f2 Q! b[
: C5 D' ^7 w% t4 W5 Dset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))4 W/ c6 u- X4 d( g4 H3 T% a
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
+ \& R  t" K0 e& {set i (i + 1)
) D, }# z6 a. ^( G3 r/ r' D- _+ B]
3 r3 C5 y) P- ]+ q5 k4 \5 R8 |let k 0
; [' g' P6 p" Olet new1 0: e* k7 ?! x' S; ?3 x
while [k < people]. ~& J! s  b  G  E
[$ S& V! f% u. |3 x) S  S& s0 p
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)
! I- |3 l6 b$ E& ^set k (k + 1)
/ s# A- v+ M: f]& l( q' @0 Z5 s- t; o) [  |
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! m, Y  z7 ]1 L) C" F8 ^
set global-reputation-list (replace-item j global-reputation-list new)
, p, U* b9 L/ O8 Mset j (j + 1)
, ]- Y! y, E/ o1 w) U]: B* d5 L, ?2 s
end
/ [( ?, U' Y. I7 K$ h3 V( k1 L6 `6 X8 E- N6 L1 x0 b
% R$ }- r7 _6 k+ e
6 v  S5 P8 ]) ?& l  ?* U
to get-color: U" R. }: @; y# R1 t# D

. J6 x" v, }; j# I0 \+ }# u5 Aset color blue
4 a  v9 G) s- s5 y; f
end1 K2 K* b; G1 ^& V
  o1 t  b( r' @4 o
to poll-class
% ]4 \% Q. k/ T; w3 qend
  h% b5 j; l& N) K9 |( r
! a# O, a0 ~6 q# i5 N3 h$ Ato setup-plot1. S& l! f( `7 d& m, r' s
: c; l# P+ }- n& |5 Z+ U
set-current-plot "Trends-of-Local-reputation"

5 K: L' Z+ T0 j. y0 E5 _5 r5 f8 Y; p. z* H+ F4 x
set-plot-x-range 0 xmax

7 T# g) C4 d* {: B/ f* C! O( ]; W. F4 p& X0 Y( ~7 r
set-plot-y-range 0.0 ymax
. v- g2 S- e' o: L
end) }4 `" ^: T( t4 |
( S& q& P5 x4 k, ~9 `* s8 A! R
to setup-plot2
. ^/ i9 i" ^' g' a2 U. r; ?
3 {+ X% b% i% A, H: b# hset-current-plot "Trends-of-global-reputation"

6 ^. s& x% l" f& w# F, {
5 U7 J# h( o2 W) d- O% Jset-plot-x-range 0 xmax

* H' J1 c9 W% X2 b+ L# V8 _7 P- U6 Z& ?+ D$ \6 b4 s
set-plot-y-range 0.0 ymax

) l* c: p  t6 o, tend
) _4 f& c" W6 p" u; t
0 c  H: J% Q5 j& y2 G) z$ A7 Qto setup-plot3
& Q( N4 ^1 p. ]2 X, F* f; K+ s  L/ `) h) Z. U# b5 g
set-current-plot "Trends-of-credibility"
9 E* N# w9 I" B0 Y# ^- X
; ~# o! z+ C9 _
set-plot-x-range 0 xmax
2 T, K4 ~) W* R
' b$ r5 s2 D) @7 }% Y: k
set-plot-y-range 0.0 ymax
7 [9 Z. |) d9 |; K0 r' `  A( s
end" h, z. {/ A* S6 b
. O8 a4 k6 p  f2 Y: J1 x/ f7 ^
to do-plots* ?0 r- B- J8 H0 u# ^
set-current-plot "Trends-of-Local-reputation": d. n6 Z8 t2 J
set-current-plot-pen "Honest service"' ~6 e$ M9 ^. v) v% h3 q/ J4 c! w, Y" p
end5 z! W' k& b7 [7 ]( F% u$ |% Q

* M- ^" T8 `$ K& X/ ?7 d[ 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.  f2 N9 |( H) x0 k2 R
" g- d! b& N6 H
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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