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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:
) b% y. o  c# n. C! [to do-business
  [) g. x+ S6 a' } rt random 3603 y! g# u2 f0 G5 i' R: k
fd 1: J; v9 x% Z& x8 o
ifelse(other turtles-here != nobody)[
) o) n" [2 x) r6 D# I   set customer one-of other turtles-here ;;这样一来,customer不代表了一个turtle吗?但在运行时出现了问题.1 X4 x- |9 o$ V3 e  h) ~. H
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    # V, T3 d. ~  H  A8 Z8 U
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
( x" }# h$ c- G# O$ m9 y   set [trade-record-one-len] of self length [trade-record-one] of self2 J2 q# L) L4 |6 t4 N$ L
   set trade-record-current( list (timer) (random money-upper-limit))# r9 l1 i" F8 O1 U4 V- A
& X1 r1 _7 b5 M: H5 i
问题的提示如下:( M: T) ~& w# S3 ~) P. v* w
, y0 T2 }" K0 Q1 [- f- k+ x
error while turtle 50 running OF in procedure DO-BUSINESS; |5 Z' y% ?9 _# `: M) x
  called by procedure GO1 m; o' y5 @# A
OF expected input to be a turtle agentset or turtle but got NOBODY instead.6 @3 O% o* b2 q" v
(halted running of go)
# Y' f9 F! I0 R% ~7 z+ _
! q/ o+ ], {+ w9 R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~~
) Y  ^# T. G" v4 }; \3 f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/ V  W, }+ U' M, w! v: m
globals[  Y$ x, P1 k/ L: E! @1 R, @
xmax/ ]* z( i4 `& G; p* ^
ymax
+ o) J' V$ q0 w( [8 L! c: ~global-reputation-list- F" e# ]- E, ]: D" l. f% N9 x
+ `9 v- ?) j1 v. P
;;
每一个turtle的全局声誉都存在此LIST
  p/ g  K5 {- b1 r: icredibility-list
4 v! U. B; {# ^) C" \% r7 w4 N& n;;
每一个turtle的评价可信度. x. g. L  K+ w. Y0 M1 i
honest-service
# V7 w2 P" ?0 q3 Qunhonest-service
- S2 @* b" x. ~1 Z: Foscillation8 ~$ {1 o) _, h" Z! g' ]* j0 W
rand-dynamic2 y# i" u# N: u: H3 ?  }
]* O% Z+ b3 i6 O& y: n

9 m( K0 T% n" ]6 I7 n5 V6 pturtles-own[* X5 ~% z3 `* `9 R" h) |- K
trade-record-all% l+ ~) V* {1 `. A, j3 E
;;a list of lists,
trade-record-one组成
2 w' O# f  p4 O" d9 {trade-record-one- f  J# E$ i+ C4 d, t2 `
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录( R! H5 k) z# n0 V: s

8 Z* A( {' E1 M! J& W; ~. I;;[
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]]1 C3 p" ?8 h3 Y8 Z+ b
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]
: I3 t9 T) t; J& i2 l$ Z  P# _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
6 c% S3 O: e" r$ a" xneighbor-total: V7 X" N3 ^/ S7 o2 J
;;
记录该turtle的邻居节点的数目( i' s$ r$ z7 ?
trade-time7 a# W* K8 D0 b: U! L
;;
当前发生交易的turtle的交易时间
. ?, W. @- T; Bappraise-give/ V2 A! v3 P: ?5 \( H9 l! h$ ?6 \% J
;;
当前发生交易时给出的评价; M  I8 b" D& a2 Z/ B% K
appraise-receive8 o, q5 b, x- q( H9 E1 S" G1 a: s: _0 {
;;
当前发生交易时收到的评价" a; K* Q3 F, b  Z2 n
appraise-time
# N/ x; d2 S' A# a;;
当前发生交易时的评价时间* S$ X0 c% g: w* y$ j
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
& l. @: x$ }" F" |trade-times-total
% O) L) U& f3 g: p! t9 h# r;;
与当前turtle的交易总次数5 |/ F: R# B" Y( _
trade-money-total; Q9 B0 A  T* p0 x2 x
;;
与当前turtle的交易总金额
' J4 o) x7 d! X, m- H4 T  y' R/ Slocal-reputation
' Y( [, k( H7 D% h5 w( |+ kglobal-reputation
1 V8 B! x* m; f+ @; Wcredibility
/ f8 [6 i& z+ K) n- @  O( `5 C;;
评价可信度,每次交易后都需要更新
2 Q2 u. S0 }" C. Z0 \credibility-all
% D' W* d" a* O;;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- y8 [0 s! R, t( T5 j* Y4 n1 m1 I$ D
: w, X  z8 i( K7 d# N, i# O' A8 C
;;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0.53 c8 E3 U7 g" k
credibility-one
- D  K. h( j5 P! t: |2 G& r;;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
- {9 G7 ]% ]  y' G9 nglobal-proportion0 ^" g" Y" m2 l. h4 U
customer, z# `; }  Y4 |/ v# Z
customer-no& w4 ~% Z8 J, _+ O. O6 ]
trust-ok( Y5 `" E+ C' A. D1 {3 Q* j1 }
trade-record-one-len;;trade-record-one的长度
, [# k3 D& @5 L! t]' D6 X1 h6 S% Q! T: p# ?

8 v0 j! Q! v+ T;;setup procedure8 P% a7 `. d4 p. H% Q8 {$ m' B0 ^

/ L+ o- ?9 _. c6 l& p* G: Oto setup! P( I% Z3 t8 p
. r3 \- ]( Q3 M/ h
ca

- h, }4 X. Y; v+ u
1 Q( A  e5 L8 }" O6 Ainitialize-settings

2 k! q  k- A; o' q  _
+ V. H# X% G. x" c9 Ocrt people [setup-turtles]
7 |$ I$ v/ F/ I9 z, o

6 t7 h9 N$ I7 }; O( J( e- I, Vreset-timer
$ q' l1 ]( |& m) b1 y. w, G' l
0 P& `5 E5 m& c2 W* O. N. v
poll-class
/ s9 c  L+ o, k1 m

! V3 l8 K. w6 _! L. s! g  s. x$ dsetup-plots

3 r% H/ f2 ^, e; j7 p7 B1 @! o- y! e8 u# P( ^3 a6 j. j0 |- J
do-plots
: w# E' ~2 |, t5 O' l, o8 C
end' @; Z/ n7 g, e' U

" h) R: u  G& D0 @( l5 Nto initialize-settings
5 _7 P( C1 n3 i' h4 c9 C& g9 D
, N. T$ r* T  P1 V' a$ o- ^set global-reputation-list []
' f4 L4 g: R. N, W* T5 [: {  L! q2 U

2 e# @9 o/ d& {, R0 e4 Zset credibility-list n-values people [0.5]
8 D, Q# e! h4 F9 o- B8 ?7 a
' m! d% U3 |% C& o7 y
set honest-service 0

( t0 B- a4 p# o6 b# s: u2 {
; O7 \# a7 O5 w) `: i# p8 dset unhonest-service 0
) D: d5 k4 l- y* u0 t* k: m3 s" m1 L
$ N/ I6 E! O3 C9 K# t7 s
set oscillation 0

$ o2 _" `$ ~; M- N( T; v. A: [! ?
set rand-dynamic 0

* S' D1 I8 n) X0 Z$ \& lend2 W2 @7 H6 y# P. `
- w1 T% T: n2 k+ G
to setup-turtles
9 U4 \- b- _' T0 Xset shape "person"( E/ f+ i: E+ i, G
setxy random-xcor random-ycor
2 y- k* s6 c# X: v: M! ^5 aset trade-record-one []
& Z1 \$ j2 R' v" u1 {( t% e
/ i# c% U2 C1 n! N- X3 v
set trade-record-all n-values people [(list (? + 1) 0 0)]
, r/ U. n0 ]) Y4 H
2 V4 u9 _0 Z/ S. `
set trade-record-current []; e) ~) v$ j, Q$ l, q
set credibility-receive []" h% k8 M2 v) ?
set local-reputation 0.5. x# X7 n1 _! c$ r0 _
set neighbor-total 0
. y. {; n7 s$ d& e3 V/ b6 N- n  h+ P% hset trade-times-total 0
% Z( {3 q- V7 Gset trade-money-total 0& U: \; G4 o9 D" _. Y
set customer nobody: O5 N$ w2 x4 z. y
set credibility-all n-values people [creat-credibility]& C, G. m- o' |* \3 w* L: K
set credibility n-values people [-1]5 L" X5 `: n( l! U
get-color* b% Y. _- ~9 o8 h! r

9 z, M- P9 `2 f/ uend/ Q1 F  X' _7 q! y% _
# i/ I6 r, J8 V$ T
to-report creat-credibility
$ l0 w8 I! y6 N5 G" j( qreport n-values people [0.5]
3 h( w: g" |% o# w) y/ Nend
2 F5 r! ~1 _4 \; V2 K
% C0 ^9 k8 n; D: P, Ito setup-plots
3 n9 W; t7 ?6 `) Z# Z
" q; ^. o: d" r5 ~/ y5 U2 \set xmax 30

! Z/ t) P( f# M1 d0 H! C
' t. c$ O5 m1 e3 x3 ]9 jset ymax 1.0

, k6 |% X# |3 {& Y, {4 s
* F& ~' O- O( k& `& u" s; jclear-all-plots

6 g3 B' t2 X! X$ q6 p, p! X/ U
setup-plot1
: g# G% J9 F- ^8 p
( o0 j7 D; b4 l0 D$ d% n% N
setup-plot2

5 `/ C8 L2 m* P! O' G9 u
. h, w  C) y( Q+ `2 h" d7 r/ |  lsetup-plot3
' y; l+ X5 A4 g" ?/ A8 C
end6 ?9 \1 k9 ]$ M( `! z, ]5 J
5 E* F# s, s( G" U* U; _6 w
;;run time procedures
" n- X# }  O+ F7 e
8 l2 e: c' G  }/ i8 ]. ]to go
* \5 X/ n4 ?+ Z/ J* ~8 Z8 n2 a0 B0 X6 X/ c+ [! b
ask turtles [do-business]

. G9 q* V2 p3 u4 `end
. ^( w5 H+ ~4 r* @- A( X( z, y3 n; A9 T8 S$ q
to do-business 7 @! y4 W5 [! r3 n) T

8 p  ~2 q, P7 D2 P" B) n3 P
9 F1 a! E, i1 v8 {6 Q( Trt random 360

0 l4 _9 v$ a( e1 ^5 I8 f* R% \2 J$ K. W5 E5 u
fd 1
9 }# ?* J0 D: @- q+ b
. R9 c1 Y) E# J0 W- \
ifelse(other turtles-here != nobody)[
) P- K: s6 f5 Y# s8 o- I

/ B" T& S5 ^" d. i" kset customer one-of other turtles-here
* k; I% D  k# o- Y5 y3 R
# m8 O+ p6 p9 d
;; set [customer] of customer myself
8 W  R6 @" i$ n
6 E6 j4 L8 Q6 h( q3 r
set [trade-record-one] of self item (([who] of customer) - 1)
. g0 n' R/ E" b! V$ h6 c2 \3 v[trade-record-all]of self2 i  V+ g- R7 z$ J3 s5 b
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

4 X% F9 C; v5 |. }3 q
) c/ X) a% K# O8 y/ p; Q+ ]8 Bset [trade-record-one] of customer item (([who] of self) - 1)
+ M8 i6 h% ^% |' \) q7 \6 ^[trade-record-all]of customer
/ W! w& U3 f4 `/ }% Q5 P
* h0 v  @! C1 N& `1 ?- _( m8 `
set [trade-record-one-len] of self length [trade-record-one] of self

$ I+ o) w/ U5 J& F* J+ b4 u. M# r+ C8 C9 Y8 E3 ]
set trade-record-current( list (timer) (random money-upper-limit))
8 g" f2 q( u( x* S, e8 z3 u7 X6 |
9 D$ H1 `( z6 q- [1 @/ P7 ~" g
ask self [do-trust]
# j7 i" e0 V% Y! s6 ~+ P;;
先求ij的信任度
( ~+ s" M# H; `! u- E% X" m- k6 e3 l
if ([trust-ok] of self)2 C) T3 |% T3 X5 c( l% H
;;
根据ij的信任度来决定是否与j进行交易[
3 q4 K: s& M$ S0 i! R0 Task customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
- Z4 l. ]/ t0 }  q
9 f0 Q4 R4 J! F8 z2 \; k; M[
4 Y. m8 T& W% m& ~
' g1 H) J1 D; ?6 S0 W- I. r, }6 x
do-trade
  R9 S. X5 M6 Y3 `2 M( h
1 _; G4 Y' `9 [' W9 C" _
update-credibility-ijl

* b* O8 B% O7 V6 u! s, [
/ C* d, ~$ p2 A2 s1 Xupdate-credibility-list
; X( |9 S3 m* A* c+ }7 l

( I7 Y) K. q+ m
4 s- n1 u- `* b. Supdate-global-reputation-list

- n$ d$ F4 G, J% ^/ k" l; }
% T1 s5 o; v& V$ O' Vpoll-class

. f/ P4 y& p  Z' {7 Y: s, Q
" g6 F. E3 a8 _0 C/ Jget-color
& `3 J9 h  f3 K3 N8 ~

' W0 ?1 Y* _- _$ D$ O. k4 A, d]]' w/ G& ^$ J7 c

, C! m5 Z# H7 T( h. z' F;;
如果所得的信任度满足条件,则进行交易, \1 g  V& M- p1 y+ Q8 r" ?+ p

* `% z7 z' H! C% V" T[
4 h  G3 m+ ~0 y1 K: f7 O' L
7 E6 a& J+ ?* J4 s
rt random 360
, ]6 h1 d% D) v, K' E$ t& X

: l+ e' n& R( Q$ ?/ r' w' u3 M* kfd 1

$ a. n: ~$ B# C( B( k9 v: F: ~- T3 Z* s# ^
]

2 E. G/ m$ n8 w7 E* |) P$ B% s3 y, S7 M
end
9 I+ M1 }( r/ @/ f; j

" f! ^6 @/ V( Z6 I: A. sto do-trust 2 `* o, p- v% |& A
set trust-ok False1 A# F1 w% {: |0 z! d
4 b; f2 D5 x6 v5 A
( ?+ |/ a# [/ h1 k( c( P
let max-trade-times 0
* z( {0 I1 e1 X  uforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 d; _3 n) L1 a
let max-trade-money 0& H2 }0 C3 m8 k. I3 c
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]& K/ C1 s* C! E* M
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
0 V0 y7 _2 _  k- G8 f
1 Q* t1 n8 i/ v" O& b& K

" w% c# c; \# p& nget-global-proportion! J  I5 C+ r% D' \
let trust-value" l1 T$ R) \) g# Z& [0 |6 P
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 u) c6 v6 ~- J4 s! _( o
if(trust-value > trade-trust-value)
4 v! Q. e2 g# _- D8 Q4 u% ~  U[set trust-ok true]
! w! v2 H# w& V! _+ }* Iend1 a+ O; ?2 j  h- `  e

5 M; N9 `3 w8 q# s! d8 Fto get-global-proportion3 d& ~7 o" F! M- [" m; @* Y3 Z; i1 P
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), P( V- w$ }: I: |3 m
[set global-proportion 0]
6 m8 R* M7 z' \# e2 x[let i 0
8 \4 w/ W$ M. h; Ilet sum-money 05 d4 Y& Q, I$ R
while[ i < people]
- G- F& |' g' U' [  @7 A: H4 W[9 H$ d0 s3 g3 I. V$ R+ L7 C
if( length (item i
+ `- n. W) K: [8 b# C[trade-record-all] of customer) > 3 )

; W' Z! c2 x8 h[
4 p% K) |5 f1 Xset sum-money (sum-money + item 2(item i [trade-record-all] of myself))% r0 @' t8 N1 n( P% l0 S
]/ R* V: M4 s0 N# a7 L# K( l2 q9 J
]
8 J: H) Q( I3 B+ [let j 0
) _% R: S5 x5 t- j5 c% Hlet note 0
# Z6 @+ a+ ?! S6 F& Owhile[ j < people]
2 r. G) V) L! D7 P% c[
8 T1 r( f5 C% u. Q% lif( length (item i
/ a4 l/ a2 f! L[trade-record-all] of customer) > 3 )
2 X1 ~2 W/ A; _( _# i
[
% S* B1 W! K0 `0 l, c8 sifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)) I! w9 B* o$ m+ Q7 w" k
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
7 n. M* H0 M5 ^! g[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]- _; f) W% U8 V0 g7 d
]/ H, b+ E) h/ m6 g7 z5 _  O+ ?
]# w6 D$ }0 t7 ~
set global-proportion note
6 J0 s1 b5 N$ D' \& c]
2 a& ~0 b5 b3 \5 V4 w2 a) Gend
4 t0 t$ d0 s* k3 e0 P! L
0 A+ j. h) q  Cto do-trade
; n" E6 m7 M% Z" f  w;;
这个过程实际上是给双方作出评价的过程; n2 \/ R( i  d0 C8 _$ \/ h- T
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价# f# }- t, }1 c* L
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
4 e) |; Z0 v- e3 c' }set trade-record-current lput(timer) trade-record-current% ?* v' z+ A1 z& ~) W  Y& W! Q
;;
评价时间* e5 P7 F2 p  n1 H) o  r* x
ask myself [2 o9 A9 b# k4 y: T
update-local-reputation
1 M0 f( |3 k* qset trade-record-current lput([local-reputation] of myself) trade-record-current6 k4 y0 v& P9 r
]# s2 S, A5 g9 t& L- g% H( H
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
, S  i3 G7 C7 d1 y;;
将此次交易的记录加入到trade-record-one
5 m3 f/ o( I! {9 Q# \) {: o, {4 Uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)' ]) ]4 L: B" ^, X0 A2 L
let note (item 2 trade-record-current )
) T/ }! ^9 V2 E! C/ q, |/ hset trade-record-current6 f. Q7 q9 h) @' k
(replace-item 2 trade-record-current (item 3 trade-record-current))

; [4 m; t$ P3 E" r  y4 Aset trade-record-current
$ q& q) \1 m. |1 f% G. [(replace-item 3 trade-record-current note)) e! k" D: T* `- m; Q' u7 m, n3 G8 ]
3 P7 d3 h, @, a! L' z7 }% D( g. N7 \
2 T6 P* ]$ i$ ]9 s4 B7 w5 ~
ask customer [. V( x2 Z( ~+ `8 ^! n8 x7 c* H
update-local-reputation# @" b4 n7 m: P" y; h* Y
set trade-record-current
8 |2 r& X2 m& K! S/ x; U4 W5 b! g) B(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
8 i) V% n6 l. D& T- m( x8 z$ P: A
]
6 ]5 e) ^( q% ~
  c, M3 [/ D' G4 X% R5 I6 B& R; }
! x: |7 v" K1 W
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer( h3 d6 y; _5 O( A; X  {
  F% M: O* S( }* J2 _1 F+ C3 b5 n
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! h3 X; e0 S; r$ G3 |4 j
;;
将此次交易的记录加入到customertrade-record-all+ ]" d2 A$ m# x1 i
end# v1 b: {$ N1 {& n+ V
5 Y+ x; j  @5 r  F1 |( L
to update-local-reputation
6 _. Q/ c8 }% t% D! Qset [trade-record-one-len] of myself length [trade-record-one] of myself) I5 k# n" s; F+ Z- I! x5 Q1 `8 D# Y$ r

% `+ P3 S! f4 O. q/ m" M% ?1 v( Y
- x! \0 `$ s( W' l* \3 e, P; G;;if [trade-record-one-len] of myself > 3

( Z/ m% U$ Q" u9 P" kupdate-neighbor-total; ~8 d$ X4 \$ l" r; p) i1 I
;;
更新邻居节点的数目,在此进行
( q* ?! v4 B' M+ a' y/ V  Blet i 3
" |0 F0 C- V: {% g, ~# d' clet sum-time 07 C' K: T8 W6 b6 N3 M
while[i < [trade-record-one-len] of myself]. I# e: h6 w+ S
[
4 ]0 c) m+ Y& T2 L! P1 o; Hset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
! m' p4 P6 u& y- wset i( r! K2 x4 x3 K
( i + 1)

7 Y) b6 I/ g- r6 i( q2 I]1 ?' }  i$ C; V" P; f- p
let j 3+ n% r7 _" B# |7 K7 l) [- ^
let sum-money 00 p! q5 L* u6 ~4 v& I4 k! I
while[j < [trade-record-one-len] of myself]' ?! i2 D  \/ R8 C
[( E) N7 y/ B8 W; G, ?% B+ I" N
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)
& h6 G  K0 ^, L: s- `# K1 |7 Y9 nset j, f' C9 f' b; ~' P0 x& e
( j + 1)

3 N- q$ U1 T3 P]
; S" q) m; o/ xlet k 3
6 y2 U$ F+ b" s" a% B! W, I8 ulet power 0
3 c# y' g% i2 Plet local 0$ `+ v" c# f. `- y; J  e% _: [
while [k <[trade-record-one-len] of myself]
0 f5 F# G; S. U; g! I, R$ S' B7 o[5 U) m5 |7 s3 t8 s) K3 [
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) ) H  t- L. Z" L7 j1 Y5 J2 O3 ~
set k (k + 1)
( H: \9 S4 z6 c* g5 v% W( V* \/ M]7 E$ U+ X5 ~2 L. T3 Y9 H. J7 v: {2 v  Y
set [local-reputation] of myself (local)/ J  P: M- R5 M4 |$ l; m: Y
end
% f3 w: q$ y0 i* p: r9 h! `$ k) w5 D: e2 F
to update-neighbor-total
: [# a# u7 n% {
( b! C5 e* Q3 k8 m3 Aif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# \. j3 s2 m1 s. ?$ x0 U3 e$ e
; w8 x3 G' h9 P7 y, i- C, P' G" S

% z2 M) e- Y7 d" rend
! u3 q8 @+ X  a0 L9 K: z' r
2 @- q6 m1 R; I& Gto update-credibility-ijl 2 G( u- o6 ^+ [# L, W
2 }# ?) t3 f5 |" f9 [
;;
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 [! O! }$ r7 i  U1 ^' llet l 0
% Z% g" b5 \3 b  {" C* ]while[ l < people ]/ g4 Y8 ~2 z, F  t
;;
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! k- s' D4 P: h# x( v- D
[0 U+ \, B% K( ]  G$ e
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
8 F( z; S& i- Eif (trade-record-one-j-l-len > 3)
: M8 K0 ?7 x2 }9 T5 _[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与ltrade-record-one1 D: T; T. ]( ^1 W
let i 3
% W9 E& @, e2 R* l( e; {- olet sum-time 0
  ~$ Q) E( J! t+ d7 J/ Zwhile[i < trade-record-one-len]
' Y5 H+ F) E  H5 A& H1 [% z! ~[- o+ a  A. `" |
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
3 S9 d% s4 \! w  K" A( ^- L  uset i4 z* d" X5 @' \% D. W
( i + 1)
+ h, [9 ?! z5 G& S. f5 ?) R0 {) L( {
]1 }/ l- b' Q" `, ?
let credibility-i-j-l 0
) B  W) \" h- @, F;;i
评价(jjl的评价)
) m9 T3 A  v& xlet j 39 D' k/ k# L- U
let k 4
& }  v, F- o- }( g9 x$ o# L& qwhile[j < trade-record-one-len]
# e: \  ]( p( i[3 y& f+ }. ^6 w. I9 Q, z/ B9 y+ Q
while [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在ik次给l评价的这一时刻,l相对于j的局部声誉$ t- W) L/ P9 s; `; j' P6 P
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)
. q5 o5 F" m8 Kset j
! D" V# P. A7 `* J. t. V  |' x( j + 1)
4 [0 S: r+ F' w* Y/ l
]
, N2 _) i9 `; W  F! Pset [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 ))
$ I* b6 V' e; Z: [) S2 K8 X2 B) l: X9 U  F

  |/ f. ]; T( t7 T3 |& P0 G2 ulet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# J9 c4 l6 P% @. r8 j0 I) @1 b. W1 I
;;
及时更新il的评价质量的评价6 Y' I% A, u% O( q5 r* J. @
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]% i8 @9 v( n$ Y1 a+ S8 n" o. Q- V
set l (l + 1)
1 W  t/ n' J$ q3 e6 E# S]
7 O& [. k% [; o; S/ send; E5 r$ Z0 F8 @

- H& o( l8 j9 q: Lto update-credibility-list1 P4 l8 X2 }' @; |+ Q. c6 i
let i 0
& K: T  c0 u, M. Z! Hwhile[i < people]
0 f; e! I5 X1 V) \4 {[9 n1 @/ R2 P6 r. Q1 o' c# }% v+ I
let j 0% |6 S! E7 g% z# b
let note 0) F/ ^0 c& v* ]/ o; o# X
let k 0, _: x7 C6 J3 D2 t$ i7 {' b
;;
计作出过评价的邻居节点的数目
0 o  }/ m0 w/ Y' |( V1 twhile[j < people]
) w9 u8 m$ A6 e, L9 B# V[/ h. H& |4 s5 f& D: i8 `
if (item j( [credibility] of turtle (i + 1)) != -1)
0 p4 a5 w4 l  }( E;;
判断是否给本turtle的评价质量做出过评价的节点
9 N, B) E% N3 w, w7 W+ k[set note (note + item j ([credibility]of turtle (i + 1)))/ j" L$ {6 P1 }9 e9 c8 S
;;*(exp (-(people - 2)))/(people - 2))]

+ X% d. W* n) Iset k (k + 1)
, U2 W+ s5 j8 m' [5 A" Q* h- C]+ a% v2 [2 q# G- c+ v" Z
set j (j + 1)9 h# b! _' G, y  k* w
]% `8 T  ?, x% `! s: g& V
set note (note *(exp (- (1 / k)))/ k)  }( C. B/ }  v" N8 r
set credibility-list (replace-item i credibility-list note)
: ^2 n+ i: }5 ^; F3 mset i (i + 1)3 ^( C& y# z# a" c6 v3 K: F7 w* `
]
2 Y0 V( P% z; K6 U' \2 \end
4 d, K' I7 h4 V, B$ s0 J
" B0 J; Q4 P$ f1 w. k) ~7 q, u6 m3 `% fto update-global-reputation-list
0 O+ B/ r) |6 }" A& n5 n3 X# m/ Nlet j 0
. V/ p2 N1 C7 B5 ~6 |/ d. |* R% v7 `: Hwhile[j < people]3 I! i: i1 c2 y% p7 n) K- ~
[( C7 Q) @/ V7 K3 D* s+ ]' S
let new 0
! G" w# E5 M' U" P' d. v;;
暂存新的一个全局声誉
8 w" R0 ~5 z. M+ x2 O; ~let i 04 S% u) p' E4 A( s* W
let sum-money 0% R3 Z9 ^" p4 ?
let credibility-money 0
/ \; Q( h5 t* y# I( Gwhile [i < people]
/ N' Z  [3 n; F4 m$ [( @/ K- z/ R[; K) o9 W! e& C9 ~, L' |; V
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))5 u) [# @. G3 `: F8 T1 ^
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
  b5 b' o( |3 y3 fset i (i + 1)
+ }3 X. d# w! o]
$ h3 ^. Y" U5 ~/ h. v8 [let k 0; q4 C$ f+ T6 `
let new1 0
% u" U( `& p4 n6 Y, t& owhile [k < people]
, k; L$ T9 _/ l' x[) N  P) L7 z3 F( A5 F$ C
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)7 p& w4 Y! z  k+ m( v, {+ W
set k (k + 1)6 P8 O3 S0 C) Y* [6 N) U0 J+ o
]3 ]2 r& J% a+ ^" |4 r0 P3 G
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( h# v  A: ^0 ^* E4 H6 @set global-reputation-list (replace-item j global-reputation-list new)" a. {, A0 K: G5 l$ M/ s. S* z
set j (j + 1)2 ~$ ~- R7 ~0 b
]
* y+ Z  p/ T' hend( f; J* C$ A% ?5 J7 E
6 Z! t" x/ j- x! K
* X* I# n8 e, N# U5 ?- M5 ~: t

! Q& a! J( F( X6 {) |# R+ w: Z. |, qto get-color
$ j5 ?% z( `- t- R) i& Q% Z  Q: _+ {9 _7 t- g& C
set color blue

: U: h7 M* B4 n7 u9 U6 M! p9 Qend4 z) ~& ~& z. Z' x9 L4 c. w

3 }% x! y' B3 Y9 o9 Q  y( Z7 Xto poll-class
- I* m: Y* y' Uend' I2 E; \* t- J5 L; V+ D
8 m! G/ \# S' @/ b& C7 A
to setup-plot1
/ S! V9 E4 ^' E1 h
: X4 h8 G- o4 yset-current-plot "Trends-of-Local-reputation"
4 [$ m( f/ t" X/ g5 _* T

& E0 Q3 C, G, K# w$ Hset-plot-x-range 0 xmax

4 X& K1 M8 y6 ^9 e# ^  |
% f7 ]( N9 z6 \! s' r! wset-plot-y-range 0.0 ymax

; g  ]0 B# l  W1 h( |0 |( S- _end* ~% v" B3 d. U0 N3 \. O9 u( X1 _

+ {; k% b3 o' jto setup-plot26 y8 Z5 P+ ~9 s; Q2 Y. S! `% Q! I

+ a' Q/ b4 O# D0 }* u& Hset-current-plot "Trends-of-global-reputation"
* |, P, |" D& M
1 t+ M3 u$ p. J% u3 o6 J& {: T) V
set-plot-x-range 0 xmax

1 R, U* j5 R. E# Z- ]0 ~1 T+ t' T1 X5 Y8 {/ L7 _
set-plot-y-range 0.0 ymax
  a. \0 G4 R& o6 r5 b
end
5 |' j" o2 D) \2 p9 i
" y* B) B& e. S6 l& [- Q+ V0 ito setup-plot3" D: A) b$ P1 ?) t$ L! |7 S
! [. J( j' k2 c5 p% J
set-current-plot "Trends-of-credibility"
" t$ j+ ^& ^  U

! ?5 [# R3 K: P- O: N* x% {0 zset-plot-x-range 0 xmax
# ?* D4 i+ y( l3 s

( C! E" b8 i# l* I" V: |set-plot-y-range 0.0 ymax

- E8 a* M  }, N0 oend
7 K( }5 Y9 }& `, u. X9 S( U; t9 U( K6 `, z5 G
to do-plots
! X, p8 n; y9 |2 s: z9 Aset-current-plot "Trends-of-Local-reputation"0 R& a8 [6 Y! B7 D3 m" |
set-current-plot-pen "Honest service"
2 r2 N2 K+ i/ u3 v3 N6 tend
5 z- V" i! O2 Z! t9 n2 q: y
# _1 l- @! M$ c; t9 s0 j+ e5 ^[ 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.
- i) W3 d( V) H4 D9 t1 \6 }
; K9 j% r( D& B5 e& P: r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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