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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:
9 A' w3 `  D7 Y' t+ Y; z, y# |to do-business 8 F2 y1 k2 D/ N2 C
rt random 3602 I8 O" J3 n/ N( }0 p/ V1 E
fd 1
( f. e$ L3 h# j7 _( E ifelse(other turtles-here != nobody)[
5 E% s( L8 L5 Z& J; i7 ?* `   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.8 l' `( u  P9 F( I- U7 Z
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    / N2 N' ~3 Q. o) S  [& G
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
* z4 ^4 g4 z1 T4 }   set [trade-record-one-len] of self length [trade-record-one] of self
+ [1 n8 E+ k4 _: }, ~+ _   set trade-record-current( list (timer) (random money-upper-limit))
* Y" s+ K! g5 K* I- j6 i: `
' ]7 s# Q1 m' ^' [& K* e+ e. K问题的提示如下:
, e' _, z( g0 s% N3 c4 ~) J: q9 |, y, w; q$ z+ I, n
error while turtle 50 running OF in procedure DO-BUSINESS
2 M% u2 \# p% Q; m4 H; @  called by procedure GO4 W8 R% n! N  y, P/ T
OF expected input to be a turtle agentset or turtle but got NOBODY instead.) I$ ?, I$ t$ a/ o5 q( e& K" T/ a
(halted running of go)
6 ^" Y, G- q: U5 T; V3 F! Y: j/ s, Y, w+ I
这是为什么呢?我看到一些netlogo中自带的例子也是用这种方法来找turtle的同伴的啊?期待高手解答~~
' t) l4 S8 u, ~" C$ l6 h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8 D) o& i3 L% z) N/ C7 S
globals[
( E( {& V1 ^2 k; F0 Pxmax
" n4 o; V9 T- b$ kymax
. w+ X/ ?7 m3 n1 M4 J- vglobal-reputation-list
4 ~% b) \2 N9 @( R; L6 Y  Y) t1 x, w7 Z' f/ p4 x3 @7 B
;;
每一个turtle的全局声誉都存在此LIST
; |: \" E& A3 |0 f- q/ |( kcredibility-list0 Q; [( M: F: ?
;;
每一个turtle的评价可信度0 s$ k& {. ^: J5 ~
honest-service2 ^1 d7 X$ D5 a, Z! }
unhonest-service
  F1 R! B  i& P( X! i; K4 xoscillation
: Z1 M0 d5 S, qrand-dynamic
; ^7 y! H7 t2 V% M0 ]" y$ w]
) E# e0 a2 j6 [) n+ O% u
2 g) _% I! p+ @% P. rturtles-own[
* }2 r: K  |$ W! [trade-record-all% E1 k1 S" i; I$ q* b7 h  B
;;a list of lists,
trade-record-one组成
: S  b6 V3 V* l* \0 mtrade-record-one
" X2 `0 q! Y7 K;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
$ [# v9 A: ]! U2 u# F: H, |  Z! a9 c8 ]6 p  Q- W
;;[
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]]
' R, q6 T6 F1 _  K* L  L3 Ktrade-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]
) q6 ]2 q  Q* e, |0 W$ pcredibility-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
6 G- N# I' n* i8 u( A! uneighbor-total
$ P) a# P6 M2 U; u( W% z- d8 L& o& x;;
记录该turtle的邻居节点的数目
2 A; t) v+ `) Z: p2 w5 Ntrade-time
* h& C. Q* V2 F# Z2 J4 x; o4 q# A;;
当前发生交易的turtle的交易时间' I8 O" u! V4 ^
appraise-give
+ p/ k  I( R4 O;;
当前发生交易时给出的评价5 ?# D' g- c( o+ l2 v( T  b/ v
appraise-receive7 B9 M0 w6 s2 D) o9 D. N9 v1 P
;;
当前发生交易时收到的评价8 A( O; t1 H. Q$ j3 N2 B
appraise-time
3 e) ^; {! ?& h! T) V;;
当前发生交易时的评价时间! E$ `* e% x3 K
local-reputation-now;;此次交易后相对于对方turtle的局部声誉0 S6 C8 z" d, i0 a1 N) [
trade-times-total
" x; i  R8 _# ]8 s. s" w$ @" O# |7 F;;
与当前turtle的交易总次数2 T5 W7 Z5 `8 S6 v1 `; D3 U
trade-money-total
* y2 `% X+ W  _! i/ r& q; N+ p;;
与当前turtle的交易总金额1 a/ r$ A, Q" d  i7 f. g8 Q
local-reputation
3 G! ]5 Z/ O- Y; v) k& I% Gglobal-reputation6 |6 K4 q4 S$ r
credibility' l( G% I: N7 C2 l9 W8 [
;;
评价可信度,每次交易后都需要更新- ]) Y3 Q& X8 k& g( F
credibility-all. d. v4 _2 L& r+ |; J
;;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+ V7 I- [0 J5 x& v% ~! D) Y
# n! `8 M. y' o* X3 ~3 _
;;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
) X# u, U2 }, Mcredibility-one
1 w$ T0 K0 Z; T# G5 g;;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people1 p5 s1 w* l) n+ H& O% m/ E
global-proportion
- S0 F; q6 t6 v9 r6 m, l2 Zcustomer
8 n  L; d' y* c8 Dcustomer-no
! n* Q* {9 E% H$ }5 ~4 Itrust-ok1 H5 P% f7 k% h! M
trade-record-one-len;;trade-record-one的长度
& S5 B0 k* M' d3 j7 Q9 H( \  G], @' q5 \1 x8 G0 }& [

3 A" }) v. a; @, C;;setup procedure# Q! c! Y; j7 c/ O. n9 ^: }
! d3 B1 ?; [! k( J$ b7 r
to setup
/ E  S8 c" g, O/ T: [; r- Z1 H3 d; c+ I
ca

2 I* @3 ?! E* `: B/ T) k* i" J+ O9 A  H! t
initialize-settings
, b. |3 h+ z% R0 i% B" n* ^
" x! b4 ~% |8 q1 {5 @6 c9 q
crt people [setup-turtles]

# X% L9 `- ^3 x5 }' T" R0 z. X/ S) u$ B
reset-timer
. \5 \0 @! p7 x. A, h
7 F( \' \9 _, T# L8 U! P9 t
poll-class

) k) q# j; l* e7 ]+ l
6 S$ s# M) v+ r1 x. u6 W, Msetup-plots

3 E" {- C1 R' m9 ~% Z# \" l" ~" E- |* R1 l7 u% Q# ~! V# E$ m
do-plots
/ ^" B' K+ A- [2 {4 h
end0 ^- {) j9 x0 y* `! e+ e
' j7 `9 ~0 m* x. _) ?( Z/ M
to initialize-settings1 ^) [! z- S; @7 h6 ^

1 q# P: ?* V: k0 W4 gset global-reputation-list []
1 k, ^: y5 `/ V0 d+ z  ?
( _2 t" j* W8 M$ |! }
set credibility-list n-values people [0.5]
" S( H/ x( \% y# u" f# C' S
8 @/ y' n+ r! ]% U; J; M4 K7 D, Q
set honest-service 0

3 H3 G% Q: ], X  V4 G' ?# o* Q
8 d: A) Q- j! c" o1 M3 Gset unhonest-service 0

9 |; ]$ a7 s" X/ n
( Z/ i  D9 h; b2 F6 U  zset oscillation 0
0 G+ G2 F$ n& _
$ T6 [' V) O9 B7 A
set rand-dynamic 0
0 [- p' v5 L* D  h# g
end
+ h5 o% ~$ R3 c% y3 J. h. [
$ J  D" a! m! o$ p# Y& t9 Rto setup-turtles
: W( T" z3 Q6 o; j0 W2 `set shape "person"
6 w/ Q  T4 Y$ O1 D8 U. K8 |setxy random-xcor random-ycor
" X4 v- [' @7 X0 q! g; Tset trade-record-one []4 ~# c3 E7 c2 T$ D6 F

- W+ I0 S" v3 @# r0 H, vset trade-record-all n-values people [(list (? + 1) 0 0)] - D3 ^6 d2 B$ R$ K

! q% o" i  o6 Tset trade-record-current []
- g- r/ D) ^4 h; d7 zset credibility-receive []
6 ]  M3 l+ g; Hset local-reputation 0.5/ C2 i. c0 {  J3 d' ]. q
set neighbor-total 0  N; m& o5 Y3 x" J2 W. I, X6 i! _+ Q
set trade-times-total 0# U# R; l8 N/ @# m+ J# q7 g
set trade-money-total 05 R) ^4 C( M6 L& E( L( Y
set customer nobody
1 J7 [; `: c2 mset credibility-all n-values people [creat-credibility]
( C2 x, D( Q, U' p- h2 G5 L& ?' E( Uset credibility n-values people [-1]" C: [3 n1 j4 |4 I2 r) }
get-color! N0 P* C5 I* N7 n$ E

& C! g0 u& y0 X8 a' vend$ A4 z2 R9 d' I* `" r, I
9 A: [$ v% q+ I
to-report creat-credibility+ w$ T2 u  I/ q0 q
report n-values people [0.5]! c% h2 ^( O7 r* i( C& K6 U
end
7 t3 r' b3 Y3 p( K" P/ Z& L" M& I/ f1 @5 W2 ?7 G! x* G1 i
to setup-plots
5 i) n( K/ Z! _. K( A
+ i  m, c5 ]; c  x3 Z9 vset xmax 30
& ^9 D8 Q) M" l2 g. h
3 Y; S5 _5 t3 e
set ymax 1.0
5 D4 q6 x8 l" b9 f6 I( T
& c" C: V9 f6 c3 c+ \
clear-all-plots

) y: b/ q% H. c2 B/ A& X$ u9 P  Y. U) ~& T9 r
setup-plot1
& t; S8 \3 V: V8 O9 d
1 B- v8 N% G5 V( S( v0 z) \
setup-plot2
# v8 H/ N1 }! K( C! a

7 Y# B# B' U/ Zsetup-plot3

/ A- {& v/ F0 I$ h' G8 W3 H& Lend
) G" I, f+ ^0 G. t
4 T7 G( \0 B( `" E9 U7 o! c9 p;;run time procedures
' s9 Q  Y8 S- d$ w9 z
7 ^+ ^) s7 b1 t0 f! ]& ?to go
6 ^' ]$ K. _% v, L/ O
) C; j, g- \% M' X1 dask turtles [do-business]
) X6 Z. G5 a2 N: @7 _  Z
end+ ]7 Z' S2 U1 j* J) z9 B
3 C+ o6 m/ v3 }8 z2 m, h8 z
to do-business ) J5 q9 Y7 z$ t3 u' I& o, R0 q. b
7 k- K6 j( m9 f$ X$ e
% s9 B  E1 I  W( x8 Q8 @
rt random 360
! x, K& |& D* {& W

( x. ^# r8 N( h8 w7 efd 1

% |$ M2 N# V8 e# [5 }, b
. E- X: _! w- K. o6 z; Sifelse(other turtles-here != nobody)[
7 z4 J- V: R/ |( X1 \7 g) h( X

& ^+ v& [) x0 ?/ K+ a1 Vset customer one-of other turtles-here

5 |, }- p$ r( Y0 h. o) O; ]
; Z, O2 h* _5 K* L;; set [customer] of customer myself

8 R2 s7 j2 O; x' I1 ]# Z7 r  r6 L! R* W" D' ?% B0 \
set [trade-record-one] of self item (([who] of customer) - 1)
3 z( l* C3 n1 l& Q: p+ n9 R0 A[trade-record-all]of self
: |5 D' ^( ]6 n8 F;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
7 k! w! v+ B* P' M

& V2 P0 q5 N" t4 v; Aset [trade-record-one] of customer item (([who] of self) - 1); ?, p' `, E( t
[trade-record-all]of customer

& K3 P. [6 _, t) F! ~" l4 J* v, v, \3 m0 `2 f" ]
set [trade-record-one-len] of self length [trade-record-one] of self
9 C8 V) X) C4 ]2 z; d- e2 Y) G5 d8 B

/ S  B0 ^3 y- l/ o+ E# T' Uset trade-record-current( list (timer) (random money-upper-limit))
+ Y( [. S- ]3 t$ j. l# I0 z. ?
: I% B  C7 N8 w7 u3 C
ask self [do-trust]
4 [* w% |/ [- X6 N0 w/ D% ~# M7 v;;
先求ij的信任度
: P! F) W- S) w' ^: @" u  ^8 a. {! i0 v' k5 k6 q9 x* N
if ([trust-ok] of self)1 }2 R- R! j/ W6 c
;;
根据ij的信任度来决定是否与j进行交易[
* |( k8 x  w% x6 f2 ^, [2 ^ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
. r5 O/ K/ q+ n! q- Q! p- D/ @: \  T# i- d
[

  y9 G+ R8 ?0 \+ w1 ~+ @# x* [$ d. ~8 H/ m4 f/ J8 @( j
do-trade
, D: r  t; s6 h8 T
. Z7 M, L: v8 e4 z+ ~' L
update-credibility-ijl

4 B' I+ Z$ h! F/ G+ Q" I2 t% ?" J& a/ V* d+ ~; A. t: p& g
update-credibility-list+ |! @' i5 v5 g
6 m6 t; M; ]8 h; [/ e
5 M# P3 O+ z4 ~: e- G) b+ N
update-global-reputation-list
+ I* q8 u8 J) V, r" F& i$ r& Q+ C% d
9 W/ k& N1 z3 D: y% A# L
poll-class

6 a0 U& i6 k) A! x& V8 v, N& \
7 |) S, ]% U. oget-color

- `$ c! Z( ~0 M, \& G: a9 A. L  E& k. C
]]
6 `+ D8 F% c6 e" R& c+ P5 E& F& Z$ k- f7 V- v& ~1 W% P
;;
如果所得的信任度满足条件,则进行交易- q  A2 r6 T) `3 q9 `7 s& C- c
: t5 e, }/ ?$ n2 w6 _5 H3 @2 w: }
[

7 ]! Q9 N+ I% v0 ?. _& l3 @. D* Z) K8 J5 v
rt random 360
! d' @8 x& f' S1 w

/ I1 D0 X5 e7 v: ]+ Pfd 1
  T. ~6 @9 ?( G$ A# F* e* d
5 S* J0 z0 Y* Y( c  D9 q" k8 G
]

% S+ P0 ~# N3 B4 o' `8 H7 I# u: k; C4 \3 h2 U6 D
end

2 T) ^+ K) l+ }. |7 ?; a  ^
6 ]+ f- m' V; U" H- mto do-trust , o1 c) |& R. H/ V
set trust-ok False
3 ]) [9 m# U- V% v0 `! K6 ]
5 R" j, @2 d! j0 I0 _& d
+ N- r+ {  N' s0 `, B2 x
let max-trade-times 0/ p( O$ B2 }% x' b1 \# S8 M
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 x' S5 x( m9 z: `+ c4 E
let max-trade-money 0
! }( t  ]* @+ r0 `foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]1 K( t- L0 x4 r4 d) 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))
/ [/ h! ]6 j2 N
! n% w. u. x1 }/ @

3 m2 c0 A0 H' y8 Oget-global-proportion
( t2 Z( c! g9 m1 w& S( ?2 rlet trust-value/ r9 I1 H" P  A
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)

- R) G( s4 `2 Uif(trust-value > trade-trust-value)( w$ Z8 y8 m7 X( F( W
[set trust-ok true]
* ^7 n3 P) X/ {; V1 Kend' f* T, _  ~! m' U$ y4 f& Y! U

. r1 p3 o; w! j0 }7 h5 p) kto get-global-proportion+ w1 V* e" u6 Y8 _0 y
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)/ h1 i( m3 S$ k( h4 a, N- c; b6 |, a
[set global-proportion 0]
9 r% G, r4 r( t  g( ^+ o% }  g+ {[let i 0
8 [- C( t+ s) R. A# `5 Ulet sum-money 0) P4 e0 k& \" B4 z. d+ K8 n
while[ i < people]' Q3 s5 n( [) B& o9 U2 \/ X8 o
[0 @' a8 A' O- D/ [- _
if( length (item i
* H8 N: I+ ^5 T/ s* c% V[trade-record-all] of customer) > 3 )
" j! U* f' v  h1 |
[, }# y1 E, t* P/ v, M) [
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
  P& M: [. b# l]' f" F/ d! [! c% P. g: x9 i
]
2 Y& {+ o& D- x5 O3 m0 ]* U; _let j 0. P* k& t' `+ g; T: w- W
let note 07 q- s$ |& P1 I: L1 R7 M* y
while[ j < people]3 m- Q3 f) V5 n* f4 f3 ^
[6 Q5 n% [) w: d+ Z, c) A8 |
if( length (item i
" k/ z4 C8 D& P! c& @: h[trade-record-all] of customer) > 3 )
! v- w: [8 e4 e
[
8 W' j( E! i3 n. T9 u6 {. S" e. ?ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 Z3 ^. e* h! A& f, x[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
& g( Y* d( Z/ |2 j0 I+ G[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' J* M( p+ _. N! F]
: q# s, R4 H0 U7 q3 U# X8 s9 K]1 T( i# x$ P* ?' v& H& f. d+ t
set global-proportion note
0 l6 O4 h- t5 z% {2 r$ d2 v]
# Y( b& v) ?" Z" s& `end
( o# w# ^  G! `! k* y$ A% ^$ u6 m: v( y- ^) G6 f5 @5 Q
to do-trade
" ?; Y$ r4 N- G7 v0 |6 _/ J;;
这个过程实际上是给双方作出评价的过程# z; Y; E. w9 ?; y9 a5 I
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
1 }  S- r. ?. }" \6 W. p, n5 m! @set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
0 S1 m6 a1 E' d' d, {% D; g/ `$ |set trade-record-current lput(timer) trade-record-current$ j- x* A. X5 z1 f' G/ {, K
;;
评价时间
8 H; X7 z9 [2 [5 Oask myself [
+ @4 L# r6 M" g, b+ Qupdate-local-reputation: y4 |' D5 D8 d8 n
set trade-record-current lput([local-reputation] of myself) trade-record-current3 \( q; m4 c( @4 l/ {( q
]
$ J- U/ F6 h3 [& V& y% mset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself4 [* \2 D" v) K2 N) ?0 i; Q
;;
将此次交易的记录加入到trade-record-one7 s& Q+ r+ r% \) U/ C8 \7 W
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). A4 {" T) m) y( r# T+ k7 M. z
let note (item 2 trade-record-current )7 a6 S7 f1 c- m
set trade-record-current- D2 c( u; g- M& x1 b1 N/ z
(replace-item 2 trade-record-current (item 3 trade-record-current))
9 k" M! Y- B4 ]8 o$ Q5 [$ M
set trade-record-current  m' c# n+ S' ^* l, r% I/ h% Z. {
(replace-item 3 trade-record-current note)
& K6 m+ \$ X3 l( |0 ~
! X/ e  Z5 j5 b. ]* Z; M
+ H5 a) F! G' y% _6 T: b; Q2 T) J
ask customer [4 D0 L2 I1 B1 y& ]3 t# E0 S
update-local-reputation6 E1 o+ h5 X" X: i, Q$ _. y, ]
set trade-record-current/ G5 H4 s5 Z3 Y+ ?; Z8 S$ A
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

7 s! Q0 n4 ~8 B" }* k, i% e5 a" g]+ ~8 _0 g! k2 |# w7 d: I- o

, j0 f6 n) W3 k6 @1 q: W1 o
: D; Z" M; z1 b% Y: v  i9 d" h3 {
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
) }+ L! J$ y% k7 }/ u
' M. h( L/ |# v1 [+ c2 m( E1 P: [
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
" d! A% n9 u; `# O' G4 t;;
将此次交易的记录加入到customertrade-record-all
6 k# N. h2 n" B6 h6 ~& Wend
  p( Y9 ], u% D8 g$ l  x) k- q1 c6 U5 c4 H9 y
to update-local-reputation
* G4 P8 X* L7 g9 Dset [trade-record-one-len] of myself length [trade-record-one] of myself5 T+ p( R+ F% J7 l! W
6 n: v7 I! H+ K  t! Y' l

0 e; `5 K% N( g6 d  J# j& K+ E;;if [trade-record-one-len] of myself > 3

5 i0 @6 H  }1 Z- q) Lupdate-neighbor-total. r, H  K: ~; r  `
;;
更新邻居节点的数目,在此进行
& \/ \9 O6 N- t. ~' [let i 3. H5 ?* B3 E( G, }+ o! H
let sum-time 0! [4 S2 Z( Q( U7 |5 z8 s6 b* L
while[i < [trade-record-one-len] of myself]
2 R5 b# d4 L6 e7 W5 D) m& t[
  ^% Y  E. u* t' g6 lset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
6 T: y. S# e) E/ w/ K* c; n) Aset i  @+ }6 t+ U* b/ A; p
( i + 1)

4 k/ t3 d. @( U% W* F# ]) {9 }]
2 O( I6 c" |1 E/ l, a; K/ t! m2 T0 Dlet j 39 U0 D5 b* h. O* y& q
let sum-money 0+ [3 T( ^; X# B& H; k
while[j < [trade-record-one-len] of myself]1 \0 s! e  [8 e  p& U
[% R% P+ p4 B2 C. e' ~* _
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)8 b5 X" A: q, S3 W; e
set j
5 p$ F9 x) l. F3 n/ s( j + 1)

2 L5 u/ Y- G$ a7 R$ K+ A1 M/ q]
* x7 I( t. z1 [+ Y5 hlet k 3
0 }% l# p. W: N, `; Nlet power 0
/ w  k2 O8 _: Llet local 0/ I2 e' Z( O7 T0 }8 B. O
while [k <[trade-record-one-len] of myself]/ R: ?7 c& f% j6 a6 s4 b6 ^) C
[7 x! a4 Q8 Z' {% ]* R
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) + l4 [% p& f+ a# B6 K+ W) D& f
set k (k + 1)
% |" C0 M0 r7 v0 i5 @( i3 }5 b3 y7 b], J; C2 B, E# h
set [local-reputation] of myself (local)! t# _3 C5 }1 T' v
end
# r/ ]' {5 V2 {( p0 @( l* [4 A5 l" p' U( G9 M" F# t! ]5 u
to update-neighbor-total/ F1 w, r  `5 a! t  r8 \) @/ `
1 z# ^* @6 D* g/ H1 j" J
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
1 p! x' A# h, Q- W7 {0 M) V0 j  k- }

9 n  E5 H; L! I! d; e' O- ?end
8 m! \0 Y) l  C  ]! O; ^0 J& {) \3 z/ h6 t) t3 e3 X0 O+ l1 S
to update-credibility-ijl 4 c7 \8 R5 g' a. m5 U' k3 k

3 [) ]* b" j+ k0 P5 Y1 ];;
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。" C9 V7 O) x0 G$ @( W% G
let l 0% a7 e) U1 d4 k
while[ l < people ]! F8 D8 [: {, j9 G1 V6 Z
;;
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
+ ^1 c5 M& N2 X& @4 J% H7 |& ?[
, K( J/ H, b) y3 b! g) W2 @# _let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
! h" p# L0 ^4 C8 Fif (trade-record-one-j-l-len > 3)! Q, S2 V  u+ l4 A  c$ U0 c
[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
9 W% T5 u% S% f4 H$ q4 `let i 3
7 g# [7 f" M2 N- G! \% slet sum-time 0
2 U+ l7 Y- N& j' S5 ~  |while[i < trade-record-one-len]! S% O7 f" `' k8 w" k  m
[# t4 e, J9 g/ \, ~9 z
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )' A+ N  V" [6 K7 u2 P
set i
% H1 r5 [+ _+ [( i + 1)
" h$ i9 X  B. e: u
]
' o5 A/ h' d, S/ D; \" |let credibility-i-j-l 0' L9 G8 c$ ^0 k% l7 w' f5 a
;;i
评价(jjl的评价)% v/ ]+ C# E) x7 K5 E1 Z# c
let j 3
8 T1 X0 C6 }. n+ ~+ `8 u  D/ ]let k 4
" E7 y5 h/ m9 ~$ xwhile[j < trade-record-one-len]
$ L# J7 w/ o+ a0 Z3 H[
/ {) r! Z/ W! ^% qwhile [((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
! V. D& a3 ~: B. \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)7 x. Z' a! e& t, F; i$ |5 T
set j
; a2 J+ j7 w3 ]$ Y( W' ]! R3 b( j + 1)
* Q( @: a) m. r
], A- t! p$ I1 i7 U3 u0 h* c
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 ))0 F7 L  [' p7 b  W$ ^
% G! g; x% z0 h5 J" M5 |; o* e6 H

* O7 D8 o, _: x! J: t* Klet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))' L% |6 q  L) o7 L2 k7 [
;;
及时更新il的评价质量的评价
4 Q( m' n& D! |& z, R9 S7 Cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]% L# V1 \: E& p5 G5 d
set l (l + 1)) r/ z* q  Y, F, f# ]/ n
]
  y  P& j' E7 @" J. Iend& S1 M9 Y* p* W7 H/ }* c
1 O8 o" h1 a! g* @% m# m9 Z) I; s
to update-credibility-list
. e; P2 u: O% e: ulet i 0
) o/ z  j. O5 f0 |while[i < people]: X  X7 x3 r/ b; N7 p) B
[+ a5 h7 _5 r( T. k2 c
let j 04 {" [% v  U! l, ~) n2 q
let note 0# G: [5 e8 d+ J9 C* v, c! `3 F# C4 r7 _
let k 0
2 n: w" x4 ~  @9 r3 R! F8 H, p2 q5 _;;
计作出过评价的邻居节点的数目
- P8 A, b1 N) T) d* j: ]while[j < people]
! N$ L& \2 G/ Q6 T) q[& Y& c& X& V0 g$ X; }
if (item j( [credibility] of turtle (i + 1)) != -1)
; @4 B/ `% ^  T% }: T3 I- B. h;;
判断是否给本turtle的评价质量做出过评价的节点
% j4 z8 q# p. i8 i[set note (note + item j ([credibility]of turtle (i + 1)))
+ R+ G  L3 O& H- Z1 p) q8 S;;*(exp (-(people - 2)))/(people - 2))]
+ C. g. T" ^' y* J6 _
set k (k + 1)
1 y8 o4 o1 O/ y# g+ v]" k2 a! u, _4 g; O2 _. L' _+ u
set j (j + 1)
/ s5 ]% M6 e1 f4 `9 g]( R* Z# S; Y) A' `) ?5 R- Y
set note (note *(exp (- (1 / k)))/ k)
" P0 _' S9 Q2 ^% nset credibility-list (replace-item i credibility-list note)! l1 \( H9 ]$ G2 H4 ^
set i (i + 1)" \5 w7 W5 N7 {8 F; F
]
! f, [1 h( i2 s  gend/ {# t$ v1 j# ^3 k/ l& D7 E
+ m1 ]* G  {: J
to update-global-reputation-list2 k8 r+ J& e9 s) `1 Z) p- v/ w1 R
let j 07 j$ a7 Q1 x  Q. {" h
while[j < people]
5 V7 `/ a6 i; |4 k1 ~( Y; S[
! y" G2 e: L2 V8 `4 d+ wlet new 0& c/ C- Q% |! ?# ^9 y
;;
暂存新的一个全局声誉
! ?! N) F* `* H$ p0 ^, A8 n" b6 wlet i 0
  f. |3 P, n) g! j8 [let sum-money 06 s! a/ c/ l! ]) }
let credibility-money 0
+ w9 k$ [; J* L( U) t( ?while [i < people]
% R. K' n% y  G1 b8 W( x9 v) a7 B2 U[
9 Q" G3 Z# L# j( iset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))) Q7 {3 _7 D( V$ T8 u. p1 ]7 K
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
- v9 @6 f. g% Oset i (i + 1)/ B; f7 J8 C6 J& d; @
]
* ~$ X- n/ c8 H  t% v) Ilet k 0& Z; m$ S# e$ ]/ Z! k
let new1 0$ {/ }/ c' d  v2 o5 h
while [k < people]
+ O8 D9 i( [" C8 _8 y5 a[
& S8 ~# p8 \8 F' S- }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)+ r/ i. I1 y" x* ^/ X: n0 I; n
set k (k + 1)
  b0 g: \# \2 J% m% i. E0 Y]
: b7 W1 m  ~  M7 p$ xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% Q% r$ p: j+ P# G6 h9 G7 x4 x5 ]set global-reputation-list (replace-item j global-reputation-list new)
9 [. m) c4 S# z0 ~2 ~: q6 rset j (j + 1)5 F( i% C. g, c, Z0 @7 ]
]
. ~! P; l; D* L6 R6 K. I1 u! ~; mend
8 X: F# N- d1 B3 O7 g9 B% A" O0 X3 r
( H9 Y1 M# U* P  u
0 j. b3 F. d1 f' i+ K
to get-color+ @8 H) k3 }9 Q$ P6 _0 T# n: `

9 o5 ~' @* w5 w7 ^1 Nset color blue

: q3 t; N$ Y+ u$ r+ lend
4 P. M( {" Z; j& U4 q. E+ w7 X% G/ R, f2 V! h' g0 o9 G
to poll-class
& ]$ c( K6 a: _/ h# nend: n6 ?3 `# P% N. B
) [& C1 l8 r& h  q, j
to setup-plot1" @. V% X7 t( A7 G

2 t, y/ g! ~( N3 B9 U' rset-current-plot "Trends-of-Local-reputation"

0 G) A' U: c6 o" a" F
* J+ u7 X" s- y( C4 r8 Lset-plot-x-range 0 xmax
$ E( C7 z: t2 x, q; [
! B# R8 h+ j& i1 B
set-plot-y-range 0.0 ymax
9 F" X1 k8 j1 ^7 \/ }
end
1 P& u; F5 `7 m3 K
5 B* ^: T6 v  B* O/ Sto setup-plot2
, P/ J8 {6 g4 u6 u* G2 w6 I4 g0 R3 g) w6 h. h/ v
set-current-plot "Trends-of-global-reputation"

2 `! B7 p; K7 V* X9 I* [$ X! S1 X5 m: k, B
set-plot-x-range 0 xmax
4 t$ v# Z' p% l' ?1 o& z
1 v  `, E! K" k9 k6 p% d$ N& x0 O* f
set-plot-y-range 0.0 ymax

/ Z% t: |( b5 qend
( v9 m# k& `; Y- y7 q( a$ q4 P$ ?& c# F" C- B# Y+ `* S1 o# l- s" x! b' c* A
to setup-plot3
# t( l4 |: s. q4 R% }* T7 p1 m6 l3 l$ V
set-current-plot "Trends-of-credibility"

& U0 Y7 m& ^  d. D! z% t( H& }0 \2 t1 a% E# \5 l
set-plot-x-range 0 xmax

, j$ a' A- h3 p( ~
1 I* Y8 C% ^) s# J  N1 hset-plot-y-range 0.0 ymax

4 q/ X. {7 ~2 \: D) t. Mend
5 H7 E5 X0 G7 Z; Q2 J0 s( R, W$ }+ x) B1 q0 V( o- g
to do-plots
; N9 X; U/ N: o7 P  o/ n+ w1 xset-current-plot "Trends-of-Local-reputation"
- |2 H4 ?% c2 d5 q, Oset-current-plot-pen "Honest service"
2 X' _  ^  n, d" a$ I) V1 s, v3 [end
  k  c3 R4 I2 o4 _8 O3 g% L/ }' b  `6 J0 |: R# I; b+ N2 W
[ 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.; r- G' u$ _- w6 ^* A+ u- u
* Y" ^6 M4 l. 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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