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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:5 r1 x  |% E! J
to do-business
+ k7 h! F# I, I5 v rt random 360
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ifelse(other turtles-here != nobody)[- S( X3 c" T1 t/ 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.
5 R5 j7 w' y5 _4 `   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
  a" t. |( I6 w/ q/ p   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer" j! Y2 @- t; r# i5 I- d- B
   set [trade-record-one-len] of self length [trade-record-one] of self
% Q; x9 U/ z# {% V4 E# l: h   set trade-record-current( list (timer) (random money-upper-limit)); w: @- s1 Q( L+ m7 r. V# `: E
8 g: ?- w$ `8 P: C; @0 {/ g
问题的提示如下:
9 `5 z8 _' y2 f) C7 d  Y( t" @5 C
error while turtle 50 running OF in procedure DO-BUSINESS0 \" r2 J( D( ~/ O
  called by procedure GO
; \' t5 r& N( z6 Z2 _* A# b" WOF expected input to be a turtle agentset or turtle but got NOBODY instead.6 q$ \! M9 A! e: t6 A( B3 Q6 E6 u
(halted running of go)
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( I! _0 L6 Q2 n: e7 d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~~8 ?0 I2 k' K' K" {6 l  `
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/ q( }4 g  p3 H) x! p2 p
globals[3 H( @! m3 ?6 W
xmax
1 i: b* a6 o2 i3 Mymax9 l9 n( l; {+ Z, M, ^5 Y
global-reputation-list
2 g/ a) y$ l  ~! W- i/ z4 F, z0 T; {2 S
;;
每一个turtle的全局声誉都存在此LIST
: d+ L, O2 [6 }$ \credibility-list
6 H% v0 Z. m* d% y& D& {- ^;;
每一个turtle的评价可信度
1 M; g( g. f1 x: f+ V- s$ n0 Dhonest-service# c1 R; {' M" q0 B# i
unhonest-service7 J$ W  D0 A/ H; d$ o: J
oscillation
: @! R6 q3 P4 y% [0 A' Crand-dynamic
$ j( [! c4 S( Y# @* k* |: z0 f/ W]
" R7 b3 A) @7 _) j; ?
1 V* v+ w; H/ h. Jturtles-own[
! p+ t9 S$ ?5 j2 S  h% f" itrade-record-all
! ?2 H; Q% }, n% a+ ~;;a list of lists,
trade-record-one组成
) ~5 H, R* u/ c4 Q) m' S6 U% P- ktrade-record-one" i; p9 q- C$ z7 o, ]0 i
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
+ _, r8 Y6 a" w0 i  x7 r
. h$ T6 J# v. {5 S- N0 A;;[
对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]]3 w2 G' P- @% g  U; Q  i
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]
' J0 y- [2 X5 m. K+ y! ncredibility-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
4 J$ |* [  g. h) v& x1 f! K4 h/ Z# ~neighbor-total9 |# B. G! @9 `- |* g
;;
记录该turtle的邻居节点的数目# Q0 m: d* a2 n9 q1 q
trade-time% S; h2 y+ V7 \3 b, x
;;
当前发生交易的turtle的交易时间$ G2 x3 f2 e2 \6 z' H! w1 T% C
appraise-give
/ u1 F$ Z: ^' r# S; D/ m' J, I;;
当前发生交易时给出的评价8 |! r+ Y4 G0 ?4 U% V- q0 F
appraise-receive5 v( ~" z: f' a/ ]* i8 S* d, A' A
;;
当前发生交易时收到的评价. k, J$ A: S6 n  m! a5 {! S9 a
appraise-time
' G3 f( P/ K! A% ?( w; L0 e$ H;;
当前发生交易时的评价时间
9 o, u. u& u% k( B& `; Glocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
" i; ^! l. L- H; k* O$ |: h) dtrade-times-total  o1 c- [$ T, y6 a, s# Y3 H
;;
与当前turtle的交易总次数( N: ^- v' g* D6 G( g
trade-money-total7 g0 p- V# }' k
;;
与当前turtle的交易总金额  i# T1 A% [# v+ I# S; W5 y! v
local-reputation# z! p" ]  R* E2 v1 Z* W
global-reputation
  _' W4 i% l! a' G) ^4 Mcredibility& c. k' d5 t; F( B3 {: ?
;;
评价可信度,每次交易后都需要更新1 H! q' k9 |# U
credibility-all
: m' Q( Z6 T* j( v7 a* V( m: f" 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, ?0 v7 R8 T+ Q7 Z5 s4 X

& r* U; u# H. `0 K$ w/ ];;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
+ \8 m- n$ a- k& a+ l  N8 v& [& x+ zcredibility-one
( |4 \4 o- q/ a1 b0 f5 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
0 k/ l' {$ h4 ~( k$ Eglobal-proportion: H! G0 c" \3 Z( s6 ?" W9 s5 `
customer
5 S5 f- I% F; u) ]$ d( M$ g2 hcustomer-no) V! X+ N- p# W
trust-ok
! T- J& |/ x" {  p" S0 Y( N: dtrade-record-one-len;;trade-record-one的长度$ d) _5 \  Q/ w9 Z/ C% F. w
]
- L: Y  P! Z+ W* s$ o; i5 i+ Q. M* C
;;setup procedure
9 ]$ ~+ D7 U" k( i+ K) D
/ l8 K6 Y2 m0 [to setup; Q( i' I0 v% k% l  Z
: l8 Z- e. \. {. X  y
ca

6 P; K9 `  o/ j( y1 w) Y( ~7 ~  B4 i- i2 R4 Y
initialize-settings
) `5 L% b' L9 P- k6 y$ D5 b- K

2 Z' x; D& Q4 C! o3 t$ j' Qcrt people [setup-turtles]
5 R' [$ l. V& _, w" z0 b) t
) d& ?& D- a* c' F. `5 o
reset-timer
6 d$ J! \' v8 W4 M7 U# ~" G; g! G9 m
+ C9 r7 Q. R, u, e# H
poll-class
' S5 D) T# P; w

' \# [* K' U- Z. @" psetup-plots
% R* b! _. z1 n, r$ g
. }: Q2 j) ]8 R! N- K
do-plots

* r- D/ m3 T7 g" c3 tend8 ^# Z, z! I0 B( [. Z: P/ [
: {6 j3 u- {; w
to initialize-settings3 k) L. \! b( a+ O1 N0 n8 F

/ `& r( |4 G7 k" nset global-reputation-list []
9 [+ o& }- g  V, b
# s& `0 Y0 M& V: |5 d7 y/ M
set credibility-list n-values people [0.5]

; @( _) z1 n- H0 A/ `$ l- T: C( v8 A' K- q  ^
set honest-service 0

( {4 R7 t) }1 d* F- m" G, \& g
0 W: Z/ z3 e) D4 Hset unhonest-service 0

0 c8 C, n; A6 R1 Z2 m6 D9 |2 k7 `/ {
set oscillation 0
  C, @" P5 H! m$ v" h8 e
3 C1 Q  p3 X6 p* y* |
set rand-dynamic 0
3 s& e* P) W# \  j0 d! B
end" F! f2 L' C5 Y* h+ J

- W" h, E& e3 v4 G! W0 O$ xto setup-turtles
1 E+ L% j( W. I: gset shape "person"- S' R# c" `4 I9 N
setxy random-xcor random-ycor
% Y# \  N8 b& M  X! w" _$ aset trade-record-one []
+ q: g- n" v- u2 q* E7 X8 p6 h8 j4 ~1 l
; H* ?5 w  {% c! K
set trade-record-all n-values people [(list (? + 1) 0 0)] 0 R1 d5 I  W- b% L) a, z- F. H- x
6 y1 {* D$ q# M6 Q4 d
set trade-record-current []
' S( C0 i; E2 F* C9 W# N: Gset credibility-receive []
7 o# l; C, l8 W& y$ Xset local-reputation 0.5
% I: ^2 M3 L* p# V+ eset neighbor-total 0
( d3 s8 l1 y4 I( t% T; x# ^set trade-times-total 0. B( y, ]0 V. z
set trade-money-total 08 O6 u: N) l8 G; D
set customer nobody8 w6 b/ @* S3 _; }" P6 c) c
set credibility-all n-values people [creat-credibility]
* w8 k- T, m' d* k5 p, Pset credibility n-values people [-1]4 q- g; q0 n) F' H# }
get-color
" E/ g9 A4 M# M
4 J3 r% V, D5 s# \5 K4 h% F' j8 }
end
& A2 G) l7 j/ u& w. u/ f$ l8 c$ B/ _/ e
to-report creat-credibility+ J: k- }) o2 n6 [' S  ^3 }
report n-values people [0.5]
% u) N9 |6 U: C; ^1 L, t; [end
& b% q. W( E# ?9 Y9 L; p2 z. v7 ]6 l; X9 C$ ^) r
to setup-plots
' ?3 n' A  F8 `* L  X! f! S4 Q( [+ C; ~8 r+ o
set xmax 30
% E5 B* T) ^" H2 ]. N0 |  h5 v: u1 ^
; }1 [( S8 s1 u& |
set ymax 1.0
" b1 x2 f+ w. \/ F/ b5 a
$ c. W, E' W7 w& R
clear-all-plots
5 l: D% \' k8 X* a) U2 K

" {9 g! X7 S; t9 A9 r- Ysetup-plot1

6 }0 O, `" K% |, v* Q6 J$ m2 z( J% R9 o+ r
setup-plot2

( ^1 @* w' j% @/ e! Q- b5 w
  U* y4 d# q$ I& @* D0 Jsetup-plot3

) X+ e: p$ d7 [: H" K# V% l4 dend2 T+ j( I" }% g) U2 Y$ c
. K. S' N2 I/ D: i0 O
;;run time procedures
6 U' L0 q# M" R5 Q  z% j2 g# h' H. s
; F/ a! z( O3 U! h/ Q  c" D/ Y$ dto go
7 T- V6 L! w4 p# |* l8 ?( h2 Z2 E/ h% H
ask turtles [do-business]
/ V' X( Q. a9 v" j0 Y+ Z! M
end8 X. _2 v; f+ U! _3 l! C! K. j
8 v/ o  [5 o/ Q3 `( U/ A6 u
to do-business
  s+ E7 U$ C* ^" ?' X8 h
7 l: j( c+ a4 F* W

7 b% C* A  N; d5 X7 yrt random 360

1 [. o& Q8 y  j! @3 K& x3 N( i7 ?: ^3 E8 n7 r
fd 1

" b" v. ]+ T! L# m* Q. e1 @2 D* V' o. x: z$ m
ifelse(other turtles-here != nobody)[
) H/ ^4 A' V& w

1 H, d9 c- H( \; W  Kset customer one-of other turtles-here

0 J8 c) ^) O# \" F
+ O* K* ~) q  f0 {# p3 Y0 v;; set [customer] of customer myself

' V2 t& G( H( G  r% B
, M# x8 Q+ m% j! ]5 Qset [trade-record-one] of self item (([who] of customer) - 1)* x* b- \5 {- `9 q# H% Y
[trade-record-all]of self, |4 E2 x- t/ L( w& v( \
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

) a) r) r# e: y* @6 {* M3 T8 O* w* B5 w" m- M1 _
set [trade-record-one] of customer item (([who] of self) - 1)
8 k  ?& S/ g1 M[trade-record-all]of customer

" S4 c, d4 l% s  k. b5 m$ `8 ^/ h' r
set [trade-record-one-len] of self length [trade-record-one] of self
, g0 Y+ |, T: `- R9 @$ Y$ g- h3 e4 q

3 P' J5 x' ~7 I4 n6 _set trade-record-current( list (timer) (random money-upper-limit))

4 K# P9 @" m4 U7 w5 W  y. H; Q$ C4 g" u! i" R; P# N
ask self [do-trust]
7 R3 q4 B2 |' l+ O: }0 i;;
先求ij的信任度
6 u, x! p1 [' l- j$ P& k* A# z2 I$ M* E5 b; n
if ([trust-ok] of self)
5 r' G7 u- c4 H2 |4 w9 T;;
根据ij的信任度来决定是否与j进行交易[( a: `0 W& ]# F% N) l
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
) D+ g# Z! U/ T, K+ D  A; N
( W1 R' z, v) J! F- m% Q0 @1 V[

8 _1 X% I$ ]. i2 q9 X. X/ a$ Q3 h# i0 n. S, a
do-trade
9 i: c" v) X' [* V# W' K
! c, J9 R; z8 V! @# {
update-credibility-ijl

6 K& d( h! A& [0 g5 |: x6 Z2 ^6 w2 t: ]$ b: N4 ]- _  w! @/ B1 ~
update-credibility-list
. H: B: K' a; v
# `" v- D$ h' @/ E( Y9 H

, `# x" ?5 W8 Z1 Q1 Jupdate-global-reputation-list

9 ~8 G4 j; f: Q' r
$ ]9 i# c# A  L0 {poll-class
9 p" w$ H) }! ]2 a; w1 ^

1 Z7 N. V* F/ [/ q% dget-color
! L7 N2 B1 U/ M. u
% u0 H7 a3 |3 k( ?( V
]]8 M. V1 H6 S, `- L5 c) X

7 ^* W. {, ~. K! v;;
如果所得的信任度满足条件,则进行交易$ r+ W2 m8 D5 u# Q0 s/ A' i6 W
8 q4 |$ J  p# Z5 {4 \0 A% ]; q
[

: u2 a  L1 ^7 O7 E) r& V0 P" c$ j8 G: M
; R, s) u+ c) R% S8 Hrt random 360

& N' X6 h1 r* |& U6 m8 `# n1 x, K  g) Z3 [
fd 1

, u" I8 E# z2 g" A
* }8 t8 u8 n" W! w, a2 `3 R* |]
7 b& X+ y( a& ^0 {& m  S

, h& ?) Y: o. i: j* Kend

* q2 F5 \8 t: }# T7 g+ @) T) b5 q, `8 O1 d! K. }) P6 H
to do-trust
' W) Z) i0 \6 K% R3 rset trust-ok False
) ?* I- t9 s2 S& q
( w9 a( `* O8 G: U, {2 y
. I& B1 u& t; I/ [* i6 [/ G( k1 r
let max-trade-times 0
+ U: t8 g' m$ Q6 F0 p! Sforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]$ G" A# @2 w9 [/ @+ R) ~
let max-trade-money 0
* X+ D9 \- f$ i5 dforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' `6 Z' k* G0 ^
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
- U. N: N) P9 m  T$ a
. t5 U2 p+ n. V( c' H( ]( w/ i
) ^' P( O( q, [( `  X- c  ?4 o
get-global-proportion
& ~; R6 G! h$ Q: }3 _- S- O1 F7 zlet trust-value
7 K# L+ }+ ^1 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)
( P, h$ B( M# Q6 g. I% s
if(trust-value > trade-trust-value)6 x; b* P1 @" c0 S8 H
[set trust-ok true]4 B/ H+ e, \. C7 l- j
end
$ |# T! I3 l* N% ]5 _" i2 Y
) C  F/ D" D. w( @: x$ s8 C0 Rto get-global-proportion
2 ]6 C. R9 ]3 c0 N8 V4 J( d( X4 e! A$ y" Xifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
% U0 a7 p6 \* G( Y1 a6 D( d0 m[set global-proportion 0]8 s  g6 q6 h& v; S8 d* A
[let i 0
' Z  p, t  D" i3 Zlet sum-money 0
! ^( U9 f* o/ b) Q2 F0 m7 q8 N3 ?while[ i < people]
: w9 b8 R7 R2 n/ U2 k$ A9 ^[
& m/ H  c, O8 i8 b4 `if( length (item i" {2 N5 O# Y  T
[trade-record-all] of customer) > 3 )

0 E- A$ a) r6 z, c0 n' D[4 X" Z- Q5 V3 d
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))) }1 g& L4 k+ G# F
]
* ?5 E. m- \* }$ m]
' A# Z) r  J, C' S2 E0 nlet j 05 C7 s3 |( |2 Z' Z0 z+ O3 U
let note 0
, C* B: @3 O$ k/ j7 Y' Zwhile[ j < people]5 M* d% q$ |9 a! O. W' H3 Z' b% A
[
8 n% V9 ], R3 a- V0 Q9 |: X' Mif( length (item i
8 m' u4 k. T0 K[trade-record-all] of customer) > 3 )

: X6 H# @( N. V7 Q8 G" p6 K9 o[
! u! e9 J* ]9 m: e. Iifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)2 F1 d( _/ _5 d  \
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]; W$ {$ P' T( [) v/ N9 V  x
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]8 Y" [& q+ S( e3 ~( n! z4 b
]) k$ G9 ]9 ~! k9 M7 [
]: X" T! p8 D! [9 a& S4 P
set global-proportion note* ~) P! W8 z- Y) R9 B; z
]
7 ?9 z! b4 l" ?+ _8 ~end0 x  g# ^1 W4 N" Z4 p

5 {6 ~* ]  ]! r7 g# B- dto do-trade4 d  @4 U- u% R3 Q* [7 z6 p' M& X4 l
;;
这个过程实际上是给双方作出评价的过程) j. R0 n6 M( t& o
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
6 n# u- F. w4 v) G) I5 Kset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
7 s* t# A" z2 T& pset trade-record-current lput(timer) trade-record-current, D5 o8 u, I1 [& J3 [" K& w4 j+ ]
;;
评价时间# M! S. z- j3 X
ask myself [- a: q$ J' m/ k/ p# N& T
update-local-reputation, A0 D! o! \$ G/ o, O2 h4 z
set trade-record-current lput([local-reputation] of myself) trade-record-current
1 u( O4 X" [  T6 r7 g9 i1 C]2 _3 H( i& h/ u9 m3 k
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself! o3 N& v" x+ f: c' }- i
;;
将此次交易的记录加入到trade-record-one) g5 m6 e# N7 S0 x# W
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 E/ P7 N6 `2 |: O" g7 B
let note (item 2 trade-record-current )
1 b/ k+ x! [0 W( Y' r& Oset trade-record-current
8 `" L. b5 V9 B5 C(replace-item 2 trade-record-current (item 3 trade-record-current))

. F) o3 O/ ~! Sset trade-record-current
+ Y" c  c: w, J# z" n0 M/ A(replace-item 3 trade-record-current note)
; v, A# O3 h+ Z1 ^# {+ c& s4 J: r" R
8 s3 v& X. A4 v0 e
ask customer [! S7 q& w: z6 H% f8 n
update-local-reputation
: f  ~1 n; i/ m8 {2 S0 A) o4 c' tset trade-record-current' I( l. G6 y8 w# t& v" J, A8 f6 O
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

: z0 h  W3 @: v) }+ S]
, j) S% S5 |0 N5 X6 h, {1 c4 e& Z: A4 ?+ z0 u# O

. q, F% q) r/ c) m! {" B) W4 A/ oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 h) v, y" G8 ~8 a) ~
) P: i, \' t& {: b8 m# K: y
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; y' P. \& A" T. l( S% u;;
将此次交易的记录加入到customertrade-record-all
$ N, Q4 G  d% Q0 T/ `% Wend) Z$ `0 D0 R$ P) X6 a3 j; i
5 I& ?5 ^) o$ X+ h6 l; U+ Y
to update-local-reputation
: l7 K% d* Z4 `- {4 D  Lset [trade-record-one-len] of myself length [trade-record-one] of myself2 f$ }9 Y' s. F8 b

, v6 ]3 x! W; ^2 P! B% [5 h/ x( [
7 Y) n% i# {9 W3 K5 P& `- u;;if [trade-record-one-len] of myself > 3

* q5 `/ t+ R; A1 Uupdate-neighbor-total
! q. c7 @7 g0 B. j7 q% L% H% U;;
更新邻居节点的数目,在此进行
3 x2 \% V, m8 K6 v, j4 z3 h* }* Qlet i 3# z" L+ P7 s# Y. {0 p% Y8 o; Q, @/ @
let sum-time 0& V6 M: E, V7 `8 u6 E
while[i < [trade-record-one-len] of myself]
, I. `- n4 b- Y) m+ z7 u& Y[0 D# @' \  @- h
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 v& W8 @$ X  c& g% a
set i
& v* ^! z+ z; `$ m( N! z! Z+ E* F( i + 1)
. ^) `; r8 G3 f
]2 R. g$ G3 y" a" A, K' n
let j 3$ f5 C( ?2 C6 ^# L
let sum-money 0
7 Q3 ~$ Q$ a) C! c; w! Z* a5 mwhile[j < [trade-record-one-len] of myself]
' o8 U0 G4 E3 g[
7 I3 v) ]( y& c4 l4 k5 \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)* P+ i) t5 f+ `% K
set j
* c6 B! ~- o% G3 M: E3 O: U( j + 1)
1 J% w7 V& e1 W& M
]4 d  R% R0 [, e
let k 35 M+ n( x  j) b+ z& R4 u  D
let power 0
, n* S7 A9 q( w; Xlet local 0* f# |/ {& Q9 ?7 G0 i* i6 z; V
while [k <[trade-record-one-len] of myself]) j0 l6 j6 H8 y$ a+ P
[" @5 @" V1 n9 Z% `
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)
, k6 M3 d" m) U7 {0 t; Z, M3 s5 W# [set k (k + 1): g* G8 o* v1 F( [+ m3 y0 H
]
6 Y4 ]- L; }! J, T; Aset [local-reputation] of myself (local)4 T. y& g4 n' ~/ A
end: o* G7 @& U) T' _

# ]$ ]+ B1 w# l9 ^to update-neighbor-total
1 P: B- @5 E- h) W* B& O9 S2 M# ]% T+ J9 ~# I" `+ j9 m
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
  \; s( e: @  G0 P) G' P
4 \$ }. E) E6 s0 I
. b" \2 H. S! ]+ p' J
end
$ y2 E. @2 Q) e4 l0 Y1 v4 h. |2 \) L  Z- b: }; o5 ?
to update-credibility-ijl
. H+ X6 _, B0 d# K) n
' ^2 i0 K* ?, w4 };;
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。
# y, R/ r6 l$ D  Jlet l 0
: l) B  ]" U7 X: |0 U6 k8 ~while[ l < people ]
: S! i' Z8 M# \;;
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
6 H8 [) Y$ T  _2 F* B/ X[
& |$ O4 x/ h% b; Q2 v* Elet trade-record-one-j-l-len length item l ([trade-record-all] of customer)4 M4 @' W( q( r' D$ @2 l* `
if (trade-record-one-j-l-len > 3)$ q  B( m: \, G; Z1 r- e
[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
2 m6 \* i1 E* ?1 `+ ]. N0 tlet i 3
) z$ \' O% {! Q3 E# ulet sum-time 01 D  g  D" W( Z( L
while[i < trade-record-one-len]( E7 D; O3 B- [6 |
[+ W0 H: b6 R. }- y" l8 p, k: u: I
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
; M8 U$ g" p  z" D0 f7 Vset i
  x  Y/ {; n1 {( p( i + 1)

* H  r/ ^5 p$ z4 M* p- t* h- Q6 G2 K]
! g" M# X8 g+ |* Blet credibility-i-j-l 0
% J' ]1 v, p+ q0 I1 o9 s* g& ~;;i
评价(jjl的评价)
+ v) I) A+ _% i4 `3 v$ {: klet j 37 L: L! ~0 b" h: h9 {
let k 4! h  Z7 E' i" V* I8 p$ o3 s
while[j < trade-record-one-len]
  ^% `: P8 u  [[
) g" p' V! i( W  gwhile [((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; G/ w% o. g: o$ L
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)
  ^- E6 m/ H1 F/ Iset j
& Y- e1 e# X! K0 c( j + 1)

' {0 T- l. j, j0 o6 T( z]
( o/ T. n# f* Z5 @+ a4 e1 U+ ?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 ))
, E; L: M& ]0 o: a4 {3 N, m% f/ v- O: k& C3 a( t) v& t

" r; ]+ \5 h  l2 k7 m& J* plet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))& Q4 }& I* D, ~1 [( F# t0 ~
;;
及时更新il的评价质量的评价
5 e1 ?0 M$ Q4 P0 E: D; }set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 t1 y* s6 S6 |, }1 F
set l (l + 1)6 D% x! f: Z$ t% g& @, e- r
]% c: b4 Z7 F* j$ ~0 F
end
2 ?. ^: r5 Y, |  Y! {+ p" _
" D, E9 P! {. P4 M$ a5 _6 L, Cto update-credibility-list
1 P9 p* p5 r6 H& P% ?7 Ilet i 0
. }+ F; H+ d* q: E" N$ U0 r/ O4 Cwhile[i < people]! p$ _! [0 T9 D' o% l4 e
[
) N6 F& A) o2 c7 X, D! @9 [$ \3 {let j 0  Y3 b8 p8 s! f7 C5 l' ^9 Y& d' c; t
let note 0; j* X  J2 b6 K( S
let k 0; U' q. C& A& H( A6 F
;;
计作出过评价的邻居节点的数目' t% Z' l, Q# ^- x# b, b
while[j < people]/ B$ e7 z- U$ u. ~% I3 v
[
  m6 R! C. N) g! Uif (item j( [credibility] of turtle (i + 1)) != -1)& \2 i) g1 J# V/ F9 X; c) [
;;
判断是否给本turtle的评价质量做出过评价的节点
$ p2 N* v8 t& n$ M' U% ~6 _# O* H[set note (note + item j ([credibility]of turtle (i + 1)))
& p' `7 _; {$ _9 I. }2 x;;*(exp (-(people - 2)))/(people - 2))]
* L9 G3 H, R6 f- d- c* D' T
set k (k + 1)
& v! q5 d  K1 k]- G; b% `0 N8 {! u' W
set j (j + 1)' ~& u' k* F3 g4 [
]2 m4 }7 {; h( u; X( D: U: V# B
set note (note *(exp (- (1 / k)))/ k)
7 c* z% z5 X( l! C1 s2 Z* Gset credibility-list (replace-item i credibility-list note)
6 K' O" {- J8 l) M7 X& Pset i (i + 1)
8 L& x2 H- G3 `; ?: v! Z$ |]9 A) s9 I" N# q
end
# a- T$ s% W1 |  x8 m$ v7 D% X' _3 M# p- B* c4 X% L' S1 n: I
to update-global-reputation-list
% H; S9 D0 @& v1 _/ o8 s' rlet j 06 x% c) _! |9 N5 h* I( n
while[j < people]
- Z0 v7 o  L7 E# {" X[
* R5 @$ G1 x+ \let new 0
& ^5 ~5 c0 N: `7 ^: W, j. C;;
暂存新的一个全局声誉% I' x7 k9 @8 a  a5 _" B  ?' e8 K
let i 0& v5 Z2 m9 q$ G8 }/ P2 \/ |: f) {
let sum-money 0+ \4 N9 ~" `3 \& o  f, k: P( P
let credibility-money 0
  a; Y! X" z' R6 O' hwhile [i < people]
, @. ?! S( I* Z; O: E; R* J& ][/ Q1 u, }& Z* y1 h/ r" D, y
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 N- A5 d. y/ m1 D8 P1 P) dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) F- k" w9 b" F2 U2 Dset i (i + 1)
: U$ ?8 p/ m: E) c]0 {) j9 Y) a4 d# S' z
let k 03 D' ^! v. v' `% L  _' T
let new1 02 D1 I3 ^$ }4 S5 ]3 c
while [k < people]
# B+ v% @( V7 z7 F6 j[$ [# E4 c5 [' x7 H; v2 [
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)  {; ^3 T$ d8 `/ i' K
set k (k + 1)
, _5 @6 M1 _$ h! ]. H]
0 l) ?8 L& S) }1 ]4 fset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
/ X* K5 L/ i% Z+ G  M/ M& B5 }5 Cset global-reputation-list (replace-item j global-reputation-list new)
6 g  I* x; Q+ F: a2 h. ]3 Cset j (j + 1)
7 {- A$ Y4 p+ F5 o( [! D5 g0 j]# o1 D! X, j8 q; p; X3 F( Q) ]+ C$ I/ k. `
end
; J, ~# D6 D6 d$ l! k9 E* L. W. G- {  S6 K5 e3 I6 ]
4 G% t% \0 G, Y" I
2 b2 _, p1 k4 Y" d: z8 K! ]1 A
to get-color7 ?& U2 d/ _; @- D; m

" W5 z0 S# r' Yset color blue
* O8 _- A9 L9 A/ l9 X- W2 _! k! |
end% w# I0 H( @% p+ t4 E' ^( ~. d
+ J7 L$ s: J* l5 }
to poll-class
) ^! J9 o8 @: @& x8 cend. M6 X- e! j* k7 }" d) g

) y  y2 u/ D& R5 R( @6 Uto setup-plot13 Z* O0 r. v* B
& R. u* `1 o- }% K9 P
set-current-plot "Trends-of-Local-reputation"

" I3 W' p: v3 y1 }  _$ y5 H2 t9 q) j8 v
set-plot-x-range 0 xmax

% X7 u3 D8 \: P6 d- _' c+ S5 B# U2 T' _8 ~( W4 t$ e+ \
set-plot-y-range 0.0 ymax
7 C7 E$ f: M# G8 @/ J  g/ r
end% w1 x/ ~3 U/ C# Q6 D& ?
* Q6 z; c) j0 s7 j" V
to setup-plot2& k9 f/ H& @7 [7 T3 G# U. }
! n: k9 p. e, u( X
set-current-plot "Trends-of-global-reputation"
) b# z& X0 \9 f0 M8 k

  K! p$ w$ p* @( H  F' n, Gset-plot-x-range 0 xmax
  M0 t* Y. v: J- e6 ?# Z, M
. K( j2 p7 u" [1 E/ x$ L& i/ R1 r
set-plot-y-range 0.0 ymax

6 H: D& w8 q3 [' H9 q1 |# nend0 F; Z7 Y( {$ }& N" ]

3 G, f& h, N4 Y7 sto setup-plot3
# B: N8 `" g: F. r8 U6 j) q. T6 B8 j- v. ^( ^5 i' m
set-current-plot "Trends-of-credibility"

' r4 Q6 X! o' s: I
6 U1 {+ L% g) _& @set-plot-x-range 0 xmax
7 S# ^9 W4 z! Q( o. `
3 [5 t0 b+ @3 k5 [' ]7 U3 S) o
set-plot-y-range 0.0 ymax
- j8 W7 }/ u3 {% S
end) t- y- m! h: k) [0 @, {
1 W' F/ s2 M7 E6 B
to do-plots  i9 w8 f8 \2 X
set-current-plot "Trends-of-Local-reputation"
4 Z% ]0 n- ]4 }7 N: z& eset-current-plot-pen "Honest service"
! M2 u, S  L$ D* Y: L3 Yend
2 g; t5 B  F3 G' o5 G/ a" z$ @, n' _
# P: J% r0 |; D5 y[ 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.
: E) t' ~7 i, l& v
" u4 M: f" p9 I2 X# i: L( Q# S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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