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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:- F5 S" }" j6 }$ t$ k
to do-business
, @+ E, _# _" g& b1 e+ ? rt random 360
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ifelse(other turtles-here != nobody)[. i8 Z3 w& F4 ^! b% M
   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.
& L( O% \) Q+ Q   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    , j, f5 j' C$ J7 q, J
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer% ?- J4 Z0 @/ k" M
   set [trade-record-one-len] of self length [trade-record-one] of self( j' `: o7 j" a# V0 }. i5 b
   set trade-record-current( list (timer) (random money-upper-limit))6 ]% [7 T/ A: Z: s7 E

/ w: l1 b8 y  h% g5 I: |问题的提示如下:9 a6 x' W  S" }) E
, t0 O; c# Z# N0 b) Y3 s! @7 G' l
error while turtle 50 running OF in procedure DO-BUSINESS
" {' h3 G& `' N, j1 x# ~, q& |; Z/ q  called by procedure GO" F) l4 @4 d% {) }# P4 |* \
OF expected input to be a turtle agentset or turtle but got NOBODY instead." j) k+ P) h/ F/ T
(halted running of go)+ @. c! u; I6 R- \
' k& _+ K$ e/ y& e! ]% Q
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~~
* I! e! d  G5 ~4 Y8 X& 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
# ~5 U0 C: A/ Z  e0 oglobals[+ O- j, s# O  e$ B8 `
xmax$ `' O. i$ g4 u1 R0 C; e: _8 P
ymax* H- ]( b, @+ O0 G  K* x
global-reputation-list/ _! f+ M' Q. o+ H- k6 F6 f7 Y
: D/ x! I1 A3 N+ ]
;;
每一个turtle的全局声誉都存在此LIST+ T* ~. T( Z7 m' I' I2 g4 N3 `. t
credibility-list
. \' G8 l7 s* F) U;;
每一个turtle的评价可信度$ F: W& Q$ X$ S. F
honest-service
7 F& S8 r9 }! Sunhonest-service, f8 Y" L" Y4 q) A) s, r
oscillation8 G3 c  D% S8 `# @3 h( z( H$ q8 b
rand-dynamic' J( a8 S$ v4 j5 t/ H. V/ r
]. b. t; C9 x- D4 z. H
/ c* |* t' Y& W4 j
turtles-own[5 l4 a3 y1 Z) j; }; q! F7 v: }
trade-record-all/ h" [% e( N3 D2 f' u$ \7 c+ F/ ~
;;a list of lists,
trade-record-one组成) w) F, Z' \# I2 R5 v, k
trade-record-one+ {/ }9 W9 C( E6 z' z$ I' U% x& E
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
+ B- e! S, u- Q7 M# L+ q. ?/ `" B$ L6 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]]
! i7 a) z0 l5 k5 D& 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], Z: J# ^* K4 y7 k/ w4 X7 i% 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
( M( q2 r# ?: S% C- m; J- tneighbor-total; e3 O/ K( m0 N' |! x7 h5 I3 r
;;
记录该turtle的邻居节点的数目
5 m4 a5 A0 I# d' x5 `3 strade-time" z6 I+ y* f# j6 @; s: r7 P) W) p- P
;;
当前发生交易的turtle的交易时间
9 ~6 N8 I& `& [. j6 i! Y) gappraise-give
* }8 B- y3 n. @. P. y;;
当前发生交易时给出的评价
- D  c  K% N7 h% b& Happraise-receive& ~$ M. F* |1 a, ^% ]2 Q5 ~6 v6 Y
;;
当前发生交易时收到的评价& `# x4 Z0 f# {: C/ w/ E' o
appraise-time1 B$ t# v/ ~9 M7 q% g
;;
当前发生交易时的评价时间
: `/ Q& p6 k2 {2 v0 tlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
" z: I( R) `9 u% itrade-times-total
% i6 a" M9 j+ t( A, f9 V;;
与当前turtle的交易总次数* Q8 @8 ^7 w$ ~) f% X8 D9 W
trade-money-total8 c  C7 P8 P, |* J2 t0 E* t$ p4 ?
;;
与当前turtle的交易总金额1 s+ J% @& \7 w# m# ]. K# C" |
local-reputation# c# G4 G8 f8 o* F( q2 O
global-reputation) e/ k1 r8 M4 g9 A" \
credibility: g" L3 I6 }) P$ `+ L% ?
;;
评价可信度,每次交易后都需要更新: u* F1 H2 [0 D
credibility-all3 y0 ~% N# H; [
;;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  |  o1 n) o5 `; J0 x  R

1 {8 `, l9 `% X; ~$ `6 Z;;turtle
的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.5  d+ R0 w& E/ A0 x' D) n
credibility-one
( F( \$ P0 o0 n3 n;;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
! p! \( u8 T, e8 h* fglobal-proportion
/ g6 ?0 T2 u3 f5 D# bcustomer, _! V1 {7 q( B
customer-no$ c& |( N9 l  H$ ^+ x8 p1 W
trust-ok
3 D1 e: O; h0 u- ztrade-record-one-len;;trade-record-one的长度
( u/ R# A% Y3 _  M) ?! b]; P( R8 t/ r% ]; X& G# x: o; b
% \! D3 |3 g! F! f4 O- j( N2 l' O
;;setup procedure4 J6 a1 R7 s7 m; }9 O4 Z
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to setup
2 [, ?- j  ]5 {/ Z9 ?/ W
/ P$ H! s+ W; L9 h9 Dca

' j8 C% a, x; N! [( _7 R0 `$ r4 B4 t; @/ [/ i* {1 j
initialize-settings
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- o3 e4 D( O5 X; F
crt people [setup-turtles]

. s4 K  I8 p( G; p. E4 @: r$ R( ]: P3 j# z* ]- A! P: o% U; e
reset-timer
; j  x1 u3 g! I  _

/ I1 ^2 N* l8 w0 ppoll-class
: p8 w9 u# F: {. B" a0 n- Y8 L6 m

# b7 W# q; j7 z: s2 fsetup-plots

2 x/ n( J2 p3 G! m, @7 N7 a  {9 U$ z$ r# o" D" \+ J. p
do-plots

1 j% Y5 G; B: x: T5 ]end
& q  f9 O6 w+ M' E, c
5 g: ?% q8 k, U, @! pto initialize-settings
, |; Z  i0 U' g% m/ _; E; |- G( v4 c: r  r6 w
set global-reputation-list []
4 J6 ~3 T3 B8 A9 ~9 F, U

* [) A- T/ o, W+ N  w1 R& D" M" eset credibility-list n-values people [0.5]

* \0 n6 C0 T) _' {" W5 @  u. t0 U) v' }8 q
set honest-service 0
# ^! @; g! ]9 J+ I

1 j$ q5 P8 K# |9 oset unhonest-service 0
7 G4 b% s0 u, d( ?6 B3 z3 I" ~5 X
5 B5 G' C+ E8 {& ^$ `
set oscillation 0

. Y3 X; d: r" T) C- H
3 V4 V; |2 s4 |4 B$ h4 W2 Xset rand-dynamic 0
! c2 I* d' {7 z  t
end
  `) Q1 D/ b" j( q2 K2 z1 r  q$ g
to setup-turtles 0 p+ c9 f) w* B# h2 R, }7 Y
set shape "person"
$ T# n# k- c/ r$ M+ H+ psetxy random-xcor random-ycor
% i3 K7 e" r# t" Lset trade-record-one []) K& L$ C$ h$ r! ^9 O. U4 E
& Q0 l2 A5 Y2 O7 E) Z
set trade-record-all n-values people [(list (? + 1) 0 0)] 4 {; ?2 J( K5 ~$ ]
7 E1 w4 B' P/ h
set trade-record-current []
* g# l% D6 @" P1 oset credibility-receive []
5 O" S3 \% u+ G+ k) ]& n* kset local-reputation 0.5& `+ F0 x4 d3 _+ ?% u2 z
set neighbor-total 0
; l) V" T! ~! Rset trade-times-total 0
7 m0 ^. ?; x' g4 A& u* Y0 Qset trade-money-total 0- q2 z" o7 t8 C" e6 S# g9 Q
set customer nobody/ s4 \, R  S4 r- b: B
set credibility-all n-values people [creat-credibility]
8 x9 Q  X- t+ L$ r9 u/ xset credibility n-values people [-1]
( T& G# C) f8 J6 u4 P( Fget-color" h: O. k/ `" |
6 s9 x) {, {$ ]6 Q( J
end
1 T. W% ]+ a1 ?2 p" T' j
; @4 [! f) ?8 {to-report creat-credibility
8 t5 B) V5 H) W$ v: b" X. Mreport n-values people [0.5]- r2 N' p9 ?1 l$ P
end* `1 n! k6 s& |6 n; s# G

$ p8 Z9 x) K4 Kto setup-plots8 y- y/ z% L- `" s0 f
7 W* M* w) S0 n3 N' @
set xmax 30
, P+ o7 t, G: d! U& m
/ c. E, F5 z& ^9 l$ J. F- H
set ymax 1.0

& ?* b1 b8 |5 N6 R2 p! C2 |2 v6 q' z( z8 R6 W
clear-all-plots

. n+ R6 c7 I8 V# \% Z; c0 e8 `
setup-plot1
0 `& X6 h4 P. m

. p, U% \9 ?, h, U( H6 W1 Msetup-plot2
$ i2 j; Y& v  a
+ ~7 T3 f  x+ e1 J
setup-plot3
8 Y3 Q" O2 ?7 U6 g3 W' Q
end! ]1 H2 ~1 i  Y5 g

, I' Y! p: X' u8 `9 b9 ^0 |;;run time procedures
" [& D# G0 |0 Q  X1 U) _
; b5 U! A/ }( U' x0 gto go/ `$ ]( H6 N& r- x
0 u7 Y' K7 f; f; _  I* F
ask turtles [do-business]
# A3 X, I0 S" |0 R) \/ Z3 y. R4 y# O- Y; i
end( j0 s% |! ]2 ?& w  u. v9 W0 V

9 |8 _# H" f. b0 i. ]* Vto do-business
# A, Z3 R" [5 r4 N' o) E

5 Q7 Q) k. w& V9 P9 b4 g. o/ v) s8 |3 L
rt random 360
( g, \3 ?1 ^* O8 b3 }: T2 x

* \/ m& k8 `) K  N3 Afd 1
9 X) c6 G0 I& s0 M% v2 r7 K9 u) ]
" C( K! n1 z: m! }1 N( Z- ]& i
ifelse(other turtles-here != nobody)[
0 z6 q8 x# X1 r) P, D: ?& r) B
* ^+ u8 Q  p$ d/ f
set customer one-of other turtles-here
1 n/ x; {5 a; j* A
7 E4 \. N4 b. I+ O: D! n* b
;; set [customer] of customer myself

  T7 b3 S3 W) Q7 {: N' \. N
! J8 |/ q" B$ k3 S  Qset [trade-record-one] of self item (([who] of customer) - 1)
; V* A) v; l. |[trade-record-all]of self
! L8 R1 g: o1 i;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

4 ?9 A9 N- k8 D" n" H" \4 n( |0 J4 m$ ^' S3 e/ A
set [trade-record-one] of customer item (([who] of self) - 1)
- J+ ^& H8 K3 W# ]9 L. Y[trade-record-all]of customer
0 ~' j8 v. F7 b2 |! z

9 b! R( u, ?* |- Bset [trade-record-one-len] of self length [trade-record-one] of self

( R- \9 t' m* K0 y" i3 f3 z: r7 q5 ]4 S6 ~/ F1 q: z2 b7 @
set trade-record-current( list (timer) (random money-upper-limit))

+ i7 W1 E. y2 ~" c1 z1 U$ U4 D0 f0 x# c/ n8 T) m
ask self [do-trust]
- A* e3 {3 a  U( L9 }) y4 A5 s$ x;;
先求ij的信任度! G9 A% i5 ], w- L, _
/ E# @1 ]6 s5 `
if ([trust-ok] of self)/ K. c" o4 f* H- n
;;
根据ij的信任度来决定是否与j进行交易[1 r* Y. a/ ?) [7 {3 {. u7 k
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
# s! q( z) Q9 G, V, _
* A3 V- g5 \  U. r[
% X$ {: N9 L8 w$ ^
' q8 c  `: v+ Q
do-trade
' t) Q: o2 C! w9 Y# a

0 \- h" D' X) y% \2 Q3 oupdate-credibility-ijl
6 B' S0 s+ A% h4 a% {( K  `
5 a: R$ J4 H, r: j
update-credibility-list
! a9 I& P! l( w) I% F
6 ^- D4 ~5 Y) d8 W* `' ]
' s5 S( ^* B2 L* [) T* }" h2 d
update-global-reputation-list

. r# O3 ~3 c, c& L$ n/ o9 l, c7 v3 g" s5 X% r* s6 d# L
poll-class

6 H9 k: I+ ^  C3 A! k
, U9 z( P2 L4 ?! s9 B6 xget-color
# H; M+ n+ t8 h8 x9 X; c) K, Q

, r. V" l) P2 F( A]]
! n3 ~% K% v( ?, \5 O# _
; l: m; [  |! c9 y  |% x;;
如果所得的信任度满足条件,则进行交易
3 p8 r/ R( V9 `& Z2 i5 C- @! B& L7 c; ~  o5 k* B- S6 k9 u; e
[
+ Y0 B( _2 e; _# g
. |+ _# i- L: N) `  @# F  p
rt random 360

7 V7 f& t' i+ s# w& G# O! n0 e0 W3 T5 v7 m, D
fd 1

: n. y+ ]0 q# n( y( {6 ~. M0 n, b3 I
]

; ]9 K! L5 R, S
' Z, g: C5 ^6 E& Vend

0 s4 A4 b9 Z/ p9 P- |) ?" x/ W
! J; o& |7 Z3 x& k2 o: V( U4 ^to do-trust " B- w  K1 V* R
set trust-ok False7 G$ f, r+ z/ j/ ?% H, T1 Q6 B- f
- `8 S+ ?0 L# [8 A* N  j8 R& t$ F
2 h7 ]1 `! P- v
let max-trade-times 0
2 u( ~0 X' J7 t3 j8 i1 cforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]3 Z+ `4 K( K- q( I8 K" i0 t3 ]6 k
let max-trade-money 0  K  y# ^2 W! V8 u- @$ e1 I
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]: Z& L2 y; J8 \% T! ]6 p# u  g  e& A
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
* H4 b! L" G" P' x  `; I4 o* g# J% j8 c' t, M6 J( ]
. q4 {  m/ ^! w* H$ B" F. }, A. ^. q; i
get-global-proportion1 W9 ]9 O6 h! a6 c
let trust-value
2 P3 Z) U/ h# s/ blocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)

" a2 x1 J# z. c0 U7 Jif(trust-value > trade-trust-value)8 X( ^3 \- c) k& e' v1 T' S
[set trust-ok true]
* w; B# ~/ d- k  send
: j- `8 j: h- r4 E
' s# U+ y* z5 Q# |& k) ^  Kto get-global-proportion) f/ l: l, \: z2 o8 l' D/ Z
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 \& |4 C4 h' w& o: i$ |; S0 V
[set global-proportion 0]
, o# v6 q6 F& O9 G* A[let i 01 b0 ]# \; F$ ~* a4 @- C
let sum-money 03 y6 F. W2 G: b8 r, h* ]( j
while[ i < people]
, d( o! i) N: ]2 h/ ]$ D' u/ @[: L' F2 f; t( |5 a% Z0 W
if( length (item i
$ c& m8 n* _9 r  d& H3 l; R" v! [[trade-record-all] of customer) > 3 )
" `* ]( p4 N& D- Q' M5 z
[: n; t# a( j& A1 _* [' N- k
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))* @0 m, c! \4 Z- n/ t( q' A6 V% q9 O
]
3 J* v! y" |- j3 d0 F]# T  h5 i" I2 I5 x0 S3 o
let j 0
' E5 }% K; c' V3 w9 E0 j" Elet note 02 V8 p2 X4 v9 O; H- C* H8 y2 y7 \, Z
while[ j < people]
. N* Y) A7 Y* D3 r- Q[5 E! ?% Z1 ~( y9 y" ~9 _
if( length (item i) n, a" c( p# ^7 S3 H
[trade-record-all] of customer) > 3 )
* Q' j' {! s8 h2 g* z, y
[* ~; A4 o3 A$ @' x7 E
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)* B. r# M1 M1 K5 |' Y+ |
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]/ e+ B' m- N" v  p, l! w& A
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* j- x+ m  w1 n
]
+ _1 s5 ^6 B& }]' y6 s5 f5 Q' D( ^2 q& {8 N9 v
set global-proportion note% \3 ]! \4 ]" f2 ]2 M
]
0 l& b8 M! \& ^$ q& o8 @end
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to do-trade4 M2 V( b) ^' C: t2 c
;;
这个过程实际上是给双方作出评价的过程# \8 t* z' B# k
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
4 b3 G5 T  {7 @+ \6 t6 d( bset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价8 r. W7 K% s! }' |! W0 t. l0 U/ i
set trade-record-current lput(timer) trade-record-current
1 s9 H8 Y; o( d/ k. t3 N;;
评价时间
' `/ j6 R/ I; K3 \4 q8 G( F9 x1 |ask myself [
7 }8 f5 g5 Y; v  Wupdate-local-reputation  ^1 t: E- x2 \. e$ [
set trade-record-current lput([local-reputation] of myself) trade-record-current2 f( [% I& x# H! S. L3 c! ]
]. m2 H2 B" U, U) z6 p
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself  ]6 r2 o. J- Y& ?" ]+ n" T
;;
将此次交易的记录加入到trade-record-one5 o8 q1 A) N$ `( ]  O) e3 c
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
3 \8 V: X+ q% O# ]let note (item 2 trade-record-current )& Y- m7 L" F# I. h- f6 O
set trade-record-current
2 l" h& B% S+ j2 _8 q(replace-item 2 trade-record-current (item 3 trade-record-current))

4 g" G! n# R0 `- Iset trade-record-current
+ b9 P+ `) ]: p# I(replace-item 3 trade-record-current note)
( ?( d6 T: y  G2 c" Y9 Y1 Y
) h- ~4 K6 J& v

7 _# A; k8 W) D( T/ uask customer [$ E2 u  ?/ d2 C: i( F& E$ I+ O
update-local-reputation2 b' O$ ^( ~. d! P
set trade-record-current, A5 q  b' L! p' L
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

: ~9 g+ h; S' s; j5 D. V2 W: f]
; m% N& z* ]0 @* T; j
, K6 _2 Q- @3 M5 g/ G  |9 l) U
' y/ i: D+ E1 H& w
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
( X3 A% N+ `' [
; j* Z5 P; @  o& |$ N8 Z
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 ?2 t+ w8 O0 i" S
;;
将此次交易的记录加入到customertrade-record-all6 h) u3 L! O- ~( f" E2 E
end
- ]8 i! p# _/ j' M2 _$ [  A8 B# i8 F" `' b
to update-local-reputation6 r9 S( e$ j+ R) C6 K
set [trade-record-one-len] of myself length [trade-record-one] of myself
9 V5 {( K9 {% i! T0 K7 `" W! b! j
, q+ p) V1 ~3 g4 b) r8 ~' |  V
;;if [trade-record-one-len] of myself > 3

0 u* ]" R  ]! d' _+ eupdate-neighbor-total
# M# Q1 ?0 w& e' ?7 V0 r/ E" j! i;;
更新邻居节点的数目,在此进行: P6 `3 ~5 T: r
let i 3& X0 d( f6 Y9 F: |# B
let sum-time 0
( w( n# Y& G4 W6 uwhile[i < [trade-record-one-len] of myself]
+ v0 V3 ^* H# S- d! u[
* n' C* t" u, }set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), C* j; `0 b! ?" `1 h' T
set i0 E% }2 i  K" A, ~  Q$ {, B
( i + 1)
4 o3 j: d7 V9 d* T
]. Q+ A& o8 `* z2 V1 o" ~' D& F
let j 34 N  q' _. @- R8 I
let sum-money 0
; x, Z% C( a* Kwhile[j < [trade-record-one-len] of myself]
/ s/ {( R. j7 O9 Y/ x1 ]' ~5 H[/ M- Y2 z* x' R$ H
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). G9 N) H0 v2 ^5 |
set j
4 x" J4 y! e0 R% M2 E  r4 o( j + 1)

) L) H2 v- h* R! H" F* U$ \]
( @/ g& n% G: Jlet k 3/ L" A& ~* E! P/ ~  G, v
let power 0- H: @8 p6 R5 z$ q, P) L& }
let local 0
8 R# d7 I+ U: k6 l$ O* M$ K/ Lwhile [k <[trade-record-one-len] of myself]$ _: @# S0 |# \8 d( z
[
9 D/ t4 S" V% G! D/ Eset 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)
. B# ~2 Y# k4 N9 K7 s) Dset k (k + 1)4 p0 r( k: q1 K4 d% x. j; R
]+ |2 v, H5 O' @0 V/ D- [. g
set [local-reputation] of myself (local)8 d% G  B" z/ ?* b' ^& k5 T
end
( H( i+ a% I1 {% B# d, K& N& B6 F$ S1 U8 m: B' H( U4 l, v: Y
to update-neighbor-total
. u9 C/ R8 w( v) ~$ X5 W1 w  g% S0 f
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
8 P6 T+ |8 W. B6 m, N! F
$ ]5 o) e7 D2 Q  V7 ^- u; }( s

5 O8 K1 T4 @1 F* X' ]4 Bend" E, V4 f9 @3 ~/ B5 W0 W! V) A  Z
8 M7 v2 S- J- ^7 k/ p! n, ~, P
to update-credibility-ijl
- E$ r1 k* d* w2 G1 u+ L6 m, n, o9 l# a3 ], N0 f# r7 _' 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。
* N2 K& L5 Y" @1 S0 Xlet l 0+ i0 L# ^. ~6 g8 u9 X. G1 [0 n
while[ l < people ]
' S; |9 j( t! M8 t0 C/ };;
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
& v& s$ M8 G6 t9 o% v[
5 g% \8 g; U- u! ]$ ?( alet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 Y0 T+ J: V% D5 ]3 O2 w2 |8 v, \if (trade-record-one-j-l-len > 3)- r7 l( ]) s/ b* o
[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' m, m6 k3 T! n
let i 3
& h+ `' b- L) {' l% }1 t  a6 A% Clet sum-time 0
, ?. T  u! }7 Iwhile[i < trade-record-one-len]5 a1 w# T* T" h) F* z, q  b1 f6 A
[# h" _: ?! E( f0 }& u  O+ m- y
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ); [; Q$ x8 ^: B; J; ]% A  g: s+ @
set i5 C/ h6 h* J7 y1 N+ M+ M
( i + 1)
! f$ j$ e; w% |0 J" W$ M1 C& p( v
]7 K4 t' ^1 M+ T# R- R" e
let credibility-i-j-l 0* a/ F4 |% |/ Q9 [
;;i
评价(jjl的评价)
5 o4 s* u$ R% [1 q9 tlet j 3
  B3 ?' ~( w5 u' o; ^3 `let k 4
6 ]* v" ^* j6 H, ~. wwhile[j < trade-record-one-len]( Y3 p$ F0 d6 O+ I( k* D
[
" ^0 v) q2 w3 I5 `4 awhile [((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& F9 t0 g5 }5 A3 u. Z
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)
# m# M! O/ t& ~% [2 N# E0 Jset j
" u0 H( g* }4 \% X, S( j + 1)
) u* b" v! \: \
]
1 H; E4 D6 S6 F  tset [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 ))- U+ B- N6 |0 e3 Q- U

0 [' H& k* C. t: G( _5 Q2 F; I; y
1 i4 M# I+ K- [" ?( D+ D  v
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
! X& q1 D2 L5 V. J; [# e;;
及时更新il的评价质量的评价- I. F; ^+ ~. Q$ t  a) _, I4 n) a6 Y
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]4 f8 z6 P5 P. O0 N* J, {% [( v
set l (l + 1)$ @; l( p3 j& A- Z# \2 @6 O. V! D
]
1 }  N5 @7 ^2 a8 Aend
& `' z# I3 x8 w+ E% k1 W" U
7 a, |! u: D; A# {( W2 ^" Mto update-credibility-list
8 ~" ~2 h& i0 R( Mlet i 0, j, C6 X* f6 W( k: T4 C* M
while[i < people]' H5 E5 ~8 {) X% h  O- w6 G, j% n
[) P6 y/ c5 t; a* G3 H" b
let j 0' Z" c- j( a2 b) {* ^; K4 [+ B! @
let note 0% ^* g# {( G; `% l3 C' m
let k 0
% T* B, p' B0 }" G3 z;;
计作出过评价的邻居节点的数目
1 C) `: L% I! p' {7 {while[j < people]# |# l( e: W) h, r& n6 a
[
% ~+ n2 X7 }* b# }1 T' \4 Hif (item j( [credibility] of turtle (i + 1)) != -1)
8 E1 c6 k" m8 x7 r' @5 B: n/ J5 O( q;;
判断是否给本turtle的评价质量做出过评价的节点
$ _: e0 X9 V7 q) i[set note (note + item j ([credibility]of turtle (i + 1)))
9 H& n! }7 d4 J;;*(exp (-(people - 2)))/(people - 2))]

8 c% w4 k( C' |5 N: a! sset k (k + 1)" {' H3 n. u* i! i4 J  u3 }
]
; {8 j# n0 g6 s; X+ O- a4 bset j (j + 1): G, c: ^8 o( W# m
]
% C6 R! K* S3 {4 G( Hset note (note *(exp (- (1 / k)))/ k)
2 p3 H1 [9 Y3 N1 A! W  sset credibility-list (replace-item i credibility-list note)  V1 }4 ]( S$ T- u
set i (i + 1)+ V* D& l& ]& B2 b
]
% }8 a$ y- r6 kend3 i$ v% v9 W! _
- [; `& Z# ^) [9 z- P7 m6 ]& Z6 F
to update-global-reputation-list8 H6 F, C, s: m/ z
let j 0
- L# K6 \( `' E+ P. fwhile[j < people]
; r* ^4 g+ N5 T) w4 B[
+ z2 ^! }2 q, e4 x4 l8 K! hlet new 0
5 l7 c  C" b$ O5 u! D5 A;;
暂存新的一个全局声誉
& D2 t+ C1 E  y4 T# l% U+ @let i 0
! D# i+ G( t( `! W8 t6 \; elet sum-money 0
7 z' Y2 v4 E6 [$ G$ S6 hlet credibility-money 0, R( J$ I8 O; K
while [i < people]
. {% J1 A( M3 }5 I0 l5 s1 f$ u" w[
5 N+ A3 i! ^( l# {! W( Sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
5 d8 _; T2 c: \0 `9 F5 O( |# iset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))2 T- X7 Y* ^) J( T2 ?* y
set i (i + 1)
" @0 O: m) T+ B1 s2 ]]5 J7 K# \$ {/ c& h6 x; i
let k 0
! H& N  x2 i2 R, y/ T5 X* olet new1 0, b; j3 B% w5 N$ {8 A" r) m
while [k < people]
% n# F& {& N! o4 s; b! h[
5 B8 w3 H3 Y/ u. z% M- U1 X2 ~; l7 J* Zset 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)
- W  N. ?& h2 V: A: {set k (k + 1)' g" G0 i1 V4 ]4 J# f+ [
]
/ u7 H; V0 W+ u, ~; Mset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , M1 M, b, J* F5 E; d% \8 ]
set global-reputation-list (replace-item j global-reputation-list new)
; {2 J1 [3 y+ g- W8 d4 l& yset j (j + 1)
2 Y8 }' K6 p! x" r( F]# N" \3 @: S  p' `
end; e, E) u; M: w  E, f; \
8 e, A9 ^0 X2 w3 B$ B" K+ D: J
7 z1 r( H) W$ s
% w4 p  ?# _; O2 \* r
to get-color
1 B1 I6 @5 @* e& q; R& t  v- A" p  u" C  q/ d! |
set color blue
1 @9 y3 ?6 @3 W3 \! w0 R) a/ R2 J
end& S7 A' t: Q' h9 O( J

2 x( f$ n; `. Wto poll-class
+ V0 K+ l: M  S3 W. d  Dend
/ r* H% z# Q0 f0 i) P2 [2 Q; x$ w  H% v0 L/ e/ `& D0 W0 ~' B, _/ Q" z
to setup-plot1
. V* ~/ R) H: ~9 n$ |6 Z
5 Y8 W# c1 }7 |$ t3 \' c0 j. ?set-current-plot "Trends-of-Local-reputation"
0 Z) c) |& |& h# ^, A* E  A  _% r: c; W5 {6 _
2 u1 Y5 B1 W7 h% C2 U  g/ _
set-plot-x-range 0 xmax

7 A9 L/ r$ x: r  k% \% t# D  l6 F$ \
4 @# s1 q% M% z( m( t% @set-plot-y-range 0.0 ymax
, u4 `! T$ l$ O! f
end
, |' _: ]" z& d2 z! w
( C0 X4 [% Y- v; k4 s5 U6 R5 Yto setup-plot2) v5 {, e5 w2 d8 q# z5 P
- Q5 O1 ~$ h. p
set-current-plot "Trends-of-global-reputation"

, v) ^" g; i) c. d; o1 A6 n$ ~1 ]' T2 w+ _' U4 L
set-plot-x-range 0 xmax
1 B, f7 M- B& B2 n

# p2 O0 a6 Y; G2 Uset-plot-y-range 0.0 ymax

3 w0 p6 E) L1 x% \8 [- l% s. f% nend/ X! _/ I: e* H1 D
9 L8 d& `( S: r. `
to setup-plot3
, W3 @" ?) ]# j/ T' b7 e5 d7 W% C1 ^) S; M# _
set-current-plot "Trends-of-credibility"

7 b: n7 {6 f8 e0 C7 O4 X8 c7 u2 K. x. ]3 g+ ?7 C, L; f
set-plot-x-range 0 xmax
/ }% D  a  `4 f' @7 g0 y
) M$ m* ^  D8 o. {: [+ z& G
set-plot-y-range 0.0 ymax
, ~* p* E' B0 d8 s- v
end
% y/ ^/ _9 L% {( A: }
- _; q3 j7 k  d4 rto do-plots
6 L( H& o3 h  q# Y) ^set-current-plot "Trends-of-Local-reputation", z$ D; n, `: p" Q* \
set-current-plot-pen "Honest service"
: ~1 M$ N# y; R" Aend
& p5 L8 O+ u) K8 N$ U$ j6 a. M2 W; J
, A9 t4 B, g% o/ c* T5 P$ {2 T5 V! l7 j[ 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.
  w7 H; d' R( @4 v* r( {; t9 A' L& J4 F+ i! h5 h" `- \) b: P- @
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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