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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:
& k% X. p! Q! p+ f* ]. ?/ T7 Cto do-business ) Z  s+ o  ~4 |( B+ ^) o$ @
rt random 360
2 a$ O/ ?8 \8 v* {' n" ` fd 1
, V9 `; U9 S9 n" {; g1 Y* m ifelse(other turtles-here != nobody)[' @( V. ~! p4 W) z# \: e0 k5 [. {
   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 Z3 S" i. D2 Z/ g
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
$ S! p  P& G6 V' v5 F   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer5 w$ L' N- f* L" I6 Z
   set [trade-record-one-len] of self length [trade-record-one] of self; o8 n: K5 ^' K
   set trade-record-current( list (timer) (random money-upper-limit))
" U1 [& J( r3 N5 N
5 Z; ?) q# V3 M) t; l8 g; M问题的提示如下:, L+ P5 K/ G' i1 \: Y
; E, w, z7 c; U) ]; V
error while turtle 50 running OF in procedure DO-BUSINESS
4 X: p2 E2 H2 T" `2 P3 U2 {  called by procedure GO8 y; u, v5 G& V
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
8 W4 E7 x( g4 p  T! ^
(halted running of go)) }0 Y& `0 {0 I, H" m- F! }

7 q. W3 P7 Q9 l) Q3 s* C' C) n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~~* w  e! ?7 ]" e3 S5 S, _; c& j! A
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( q3 i( s' t  x: a
globals[6 [- s# j: \/ ?
xmax- J! @& {! @9 K. c3 D# c
ymax7 r. b2 @( I: ^1 G/ M
global-reputation-list
( y" p$ c6 b- z+ i
+ _3 @/ T6 K: G" @! S;;
每一个turtle的全局声誉都存在此LIST
2 [6 [: B7 P' n+ ~( O. Dcredibility-list
* U5 R0 _/ s6 O' q, A: Z/ K;;
每一个turtle的评价可信度3 L  P2 R% R) C' l7 |
honest-service
) X/ R, X" n  g  dunhonest-service
! @* g. p" s1 soscillation
% w5 O7 Q0 l; Y8 |; Brand-dynamic6 Q8 g3 ~# N9 O: h5 c2 ^
]) F' E3 b. o1 Q
- x0 u5 u4 }) j8 f  }
turtles-own[+ l" q( m% B" Q" H4 p
trade-record-all( D9 K/ }2 t: p% ~. f, ~; y- G6 k
;;a list of lists,
trade-record-one组成, ]2 C8 ]0 F' N6 {1 c
trade-record-one
0 A" L5 o6 T" J/ \2 f- \" D. F;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录" s3 g4 }7 e, b" t8 ?
  q: [! @/ |/ K1 S  g1 t# k
;;[
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]]
5 D2 \2 `" y: l3 Gtrade-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]7 {2 U  a+ ?! Q& X! c
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list5 ^% f& K: F  C3 ~) ]% y% e
neighbor-total- G0 g: {/ W( m7 c. s$ B
;;
记录该turtle的邻居节点的数目' I* P, G# ?5 D: W& B- B; U
trade-time4 R3 Z8 P3 x) r' p8 V
;;
当前发生交易的turtle的交易时间5 Z/ u  J( v% b' k, I/ m
appraise-give1 Z' }( e3 Y: F6 N
;;
当前发生交易时给出的评价
1 l" [* D) O8 E! m4 V8 Dappraise-receive
4 p7 n$ y' Z9 F2 s3 F: B" g$ }2 b;;
当前发生交易时收到的评价
, u: O  n4 O* p8 |0 x; H$ happraise-time
) `* E; L7 ?* t, L: n& G;;
当前发生交易时的评价时间
3 E( h# ?  d5 I1 H+ Mlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
+ n" |0 x. g6 xtrade-times-total7 j/ g' k4 k6 [
;;
与当前turtle的交易总次数
1 T& w4 a  |" d4 r6 V& M1 Vtrade-money-total
& R, H& ^* [( Q! [8 W4 ]) r- P;;
与当前turtle的交易总金额
( L# u6 v8 v; l) W- e1 \local-reputation: p* r; p7 N, A  J* A6 F: ?# c
global-reputation% G  {; [( m0 w- K
credibility- O  u$ L2 Z9 o4 ]0 X! B" F
;;
评价可信度,每次交易后都需要更新
* O  r4 }: |6 o* M2 z3 Pcredibility-all
9 ]1 }$ l' \5 u1 f;;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/ a  _$ I3 K3 Z9 A2 H) c8 _

% R) l) R4 A+ ~8 {6 X;;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
4 k0 G- z$ a; z# E+ r' fcredibility-one3 X0 G+ h7 e; o
;;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, j. @* }  n, U+ p0 C4 S2 l
global-proportion  y/ C) L# G% j7 T6 a8 E! v! x
customer
+ \: y9 I6 |  i2 x1 j) V( q3 I3 i" Hcustomer-no3 V: J4 \+ F4 s! o( p8 M
trust-ok
; V$ R0 M: W) F9 Etrade-record-one-len;;trade-record-one的长度
$ _& C" Z4 j2 v6 i( A3 h]" v* r/ |$ M( ^! D4 U
9 J, ?9 R" y! C- r+ q& W! ]
;;setup procedure
& Y0 e: k/ {2 P3 c; f* ^: m( w) j: U+ T) ^
to setup, s3 e( v' t% j! y

6 Z8 M2 Q. t* d; D) @' cca
. `! O* e) v( M! n( ?6 y, @3 f
- Z8 b3 x/ K0 x! Z0 L+ h5 b
initialize-settings

& y! R( W( S% b. v. N/ y
5 L" \( t: k4 Qcrt people [setup-turtles]

' ]. L+ Z& B5 k% a
8 B, g9 q+ \3 W" j! e) W8 Nreset-timer

) W2 ^/ F8 K; s8 b: J8 v) O/ T& e- x& a. F% t( I3 D, J
poll-class

0 {  j: F- s+ Y& o' ~7 w" H- L( o! v" F# x- T
setup-plots

0 u+ p# I' q1 ?2 N' @1 Q) ^/ J$ ?- o+ k9 [+ k
do-plots

7 x  r+ N( \7 z; Gend+ c  a- `2 F$ J6 T

1 l5 {" d# l/ N3 i/ V7 b; l: M" Rto initialize-settings
7 o/ @+ e& z7 V3 M* u5 Y& T9 A5 G2 X8 w( f$ i
set global-reputation-list []

8 H) M, t: f2 M7 x$ W6 G
7 R: N  W0 ^1 f+ G) J# Xset credibility-list n-values people [0.5]
1 k$ A. w+ Y' s! n4 w
, @" a/ Y8 F7 ^6 e  |) D
set honest-service 0
6 y% x1 L8 V6 v2 e/ E
8 B# f4 i9 z' c% s1 c# Y* H3 d' s
set unhonest-service 0
% t3 Y1 k7 U: r* }" P

, l/ _% \. a/ ^, A, Q) o! r4 fset oscillation 0

2 ^) V/ f9 b& I0 Y1 s- a6 T3 E2 A9 V
set rand-dynamic 0
8 v/ }, v* k' _# o. y
end, P$ v1 k; B8 [5 V; h

0 C# Z6 U0 t' u( U; U: A2 D) @' k( @0 Gto setup-turtles ; w5 y- K% y8 o0 R
set shape "person"# g6 }$ u7 E: G6 y+ p2 ]% h, q
setxy random-xcor random-ycor  y+ F2 E7 W9 g- M
set trade-record-one []
; o- r, c6 W0 n1 P; ]% @* t, C

9 L0 i( c$ {4 h+ c' c6 g# ~set trade-record-all n-values people [(list (? + 1) 0 0)]
* a/ y7 ~+ R0 P+ G0 v/ l
- U0 S5 c- Q& r
set trade-record-current []# T6 f/ |7 J3 N- d4 b
set credibility-receive []0 p( U! s+ W* F* G3 x
set local-reputation 0.54 e$ q% a: K* e" ^
set neighbor-total 0
( Q  G7 r6 O) V+ S2 Bset trade-times-total 0# ~& C( @. u; q8 {* D& b
set trade-money-total 0
+ \: K3 k% ^' Qset customer nobody
: g: @3 @, b, R0 t/ |/ Rset credibility-all n-values people [creat-credibility]- M# R1 C% z8 ?
set credibility n-values people [-1]: {) k8 o, r  A5 S) R4 _3 @
get-color
4 \4 B6 ^4 {7 B. t& i3 d0 ?

- M' o' g* w: Tend/ n8 w3 x3 ^( l$ Q* o5 O4 v7 W
1 ~4 m7 \# V- A3 l' G; W2 i% ?5 @3 k
to-report creat-credibility
; v; r# |! k' o1 F9 P- E6 j) I2 U8 Qreport n-values people [0.5], _) y: y+ f, n5 l
end
. N4 e8 R5 g) w' O7 m$ A3 K8 w: n% x+ e  Y
to setup-plots8 t* K' p. |& i7 z

9 _9 O5 N# R9 wset xmax 30
0 X+ A9 i# b6 A

0 f: Z8 {! ]7 W1 l, a% r' @: Y  @set ymax 1.0
2 J  c4 m. P# p4 V

. q) ?2 R4 z: ?* B2 @: q2 m7 x( Tclear-all-plots

7 |0 \% ?' U( ]) }3 [
4 H2 Q( M% u4 n  w9 K) E" ], [4 [setup-plot1
% M# j: }, T9 `1 m1 w
' Q( f1 b) c3 Q
setup-plot2

2 U* E9 _- M) q# I
8 T( Z, M2 \3 d1 W0 h, B3 csetup-plot3

0 t! P7 D) B5 x8 q: g$ Bend
. P6 J" a3 R+ g+ G
7 S. }( x) O" S& [/ i) S. H;;run time procedures
4 `6 m9 U- j3 a, _) G) e
3 O5 n3 ~6 b. p& t+ }  tto go
! z3 @7 U9 ?( P. r' c4 e) A7 [, Z" x6 H; k  A  S
ask turtles [do-business]
( F# w$ B7 W9 ?. d  n- I7 E# I
end/ L- I/ H) R5 X4 ~7 }+ }) L

: {8 U& N& V' W: S' Eto do-business & }! H/ V+ H- P0 ~/ P

, T/ j. h3 ]- F6 N
9 o- o$ t' B/ \  B0 q" U1 Grt random 360

) ~2 g/ p' y( ~  O6 O1 v( l+ l+ Q$ Z1 z- d; |1 H6 F! o# g* @
fd 1

, F& g; g% g! Q4 z- C, H  {, a: P
ifelse(other turtles-here != nobody)[
; ~& o4 e! [1 `8 H8 z
/ ~) x, l% {  o( V& W
set customer one-of other turtles-here
& `; ~0 V$ a8 j2 N# J: c

, r7 M; N6 p6 E* Z;; set [customer] of customer myself

. I% b: Y* B4 y2 I) D3 Y4 D& {* ?
9 z# M/ N1 s( V6 z- Vset [trade-record-one] of self item (([who] of customer) - 1)! w) `. b  F/ b$ ~  a7 b! h+ U) M
[trade-record-all]of self1 r3 _5 a9 B: ]& _4 f& I: C
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

4 Q: h, D; Q! G( I3 J
, |" Q. s" s5 T3 Hset [trade-record-one] of customer item (([who] of self) - 1)
4 r3 j* R  ^" i[trade-record-all]of customer
5 P7 q0 ]/ W% v% V3 y  N. Y; e

* U4 z" ~: o0 q( S8 w0 eset [trade-record-one-len] of self length [trade-record-one] of self

: X( d' n! u2 ^% b6 C' P/ ?/ i
  a& t+ }- A8 H# J7 F7 bset trade-record-current( list (timer) (random money-upper-limit))
7 B6 ~" J9 b1 P/ E# z, _' {% N( r

2 H( }& g# _7 S. b7 u% }' Rask self [do-trust]/ Y; I3 K! z% }- |
;;
先求ij的信任度
5 M  I3 e: Y' W, S3 e8 o4 r5 a' j* D5 P
if ([trust-ok] of self)
) w, M/ T  G5 n7 a) v9 i: |( I( H% G;;
根据ij的信任度来决定是否与j进行交易[
) t1 p( G+ i3 r5 A5 m9 C6 V0 t' Oask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
1 W2 b. }# ^% s4 r5 E1 F3 q/ t% u( l5 `
[

/ c/ {" ]* y, [$ }2 Z
! m' `$ Q" R  R! ^8 y$ gdo-trade

  a) U( @5 c+ h/ S; k; l0 Q% g) B0 `
$ }9 \" m& A7 T2 Q/ v0 D6 |$ V( xupdate-credibility-ijl

4 q1 z. P  P* f8 d4 V2 L% o$ E7 Q% W6 d& Q5 {
update-credibility-list
# K3 J0 j, ^" M3 R( X9 W! |. V1 {& e
- z& i# r. S% O- ~: a
$ I9 W+ k. }, }) }( L; S) _9 S& [, ^# r4 \
update-global-reputation-list

0 u8 s: Y& z0 @7 D$ ~5 S6 H7 e  R0 C
( o$ K, H' z; B6 H4 w6 Hpoll-class
1 Y; o: a7 p2 s: R, I1 T+ r
# l1 ?  f6 h; [$ m9 Q4 f. X
get-color
* N) l  P7 S* S; h5 ]0 T

7 N; n8 a. S) i  \" R9 L/ j]]- ]; F) R+ s8 P7 H' H" ]/ q

( w& L. @4 k) q;;
如果所得的信任度满足条件,则进行交易2 t; Z0 H' X/ W- Z

2 ]" X7 t0 k  d! w[

4 V. L+ p: x- _$ w3 W& h" g- h8 v7 ]" l% {* k1 [
rt random 360
6 k6 N7 F6 J; S& B! K2 H1 Q8 f1 P

: A' Z: w  S: D: l* r& L( h3 Ufd 1
, U4 u0 a7 u3 U1 \0 u3 _# m" i

& Y9 j5 N! ^' B5 N. j1 O5 k3 H]

# T! A% t/ x" U8 W7 m8 i1 q
8 c3 d4 l5 b2 d3 [+ m1 g( T3 R* qend

7 A6 I. P8 D/ ?" i' Z& n& S
8 A6 U  m- b: R  A7 b& w6 l: b6 wto do-trust 8 V8 w  G: I9 {6 p: S5 O, d4 I
set trust-ok False- ]' T0 x! }( t0 Q% l$ V" X% J+ ^

- i( @: \; ]5 T5 Q& d

+ {, g5 I# n; [9 mlet max-trade-times 0
- R1 r! x: ~0 D; P! p% _4 s$ r* T8 `foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]1 X; w' a7 n, \% z3 d1 c
let max-trade-money 0) A. j8 Z3 H: T8 F1 l
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
3 x. S0 W- r2 A1 Tlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))8 a4 j# o  F  n& t- r6 K- h

+ N: k$ Q$ v- v, Q; `+ L. N: Q) t
3 Y" E% {# j- Z5 l
get-global-proportion
1 d( D# O, S1 J/ K. u! O/ H" dlet trust-value
- d- T( @' U; u* U! C+ `3 ulocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)

1 e# f8 Y+ F8 bif(trust-value > trade-trust-value)$ `0 C5 f2 Q& B
[set trust-ok true]" s& c  A% u- ^4 n  c4 p; S
end
! u. u* r# S% J) e0 I7 ?3 H2 L
) r$ Z% Z* G9 l0 Xto get-global-proportion' s  r. t: ]- e# f3 N# E
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)/ K  m# [# I% ]% `: B
[set global-proportion 0]: ~; _+ z) R8 G
[let i 05 G' `) G4 V5 Y5 z; o- u7 b# S. ?
let sum-money 0
' {5 s/ j: l0 d+ B  s8 g5 q& W6 Gwhile[ i < people], d4 m. {+ E# H  L% p- X2 c( ]
[$ p( t, I6 D% v/ f
if( length (item i
; k( N( u  t# ]' o2 A( S[trade-record-all] of customer) > 3 )

! B8 z) k* m- T[6 ~- b$ y9 y+ H# B
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))7 o/ M8 j( @7 f% l3 E2 y
]
' ^5 q! I$ U5 {4 o]2 ]) Q) Z: a; }
let j 0
# p' S9 `6 Z$ i7 N) O! mlet note 0
% v, |/ m& z6 P2 B3 q# n/ ?while[ j < people]7 P% F' X4 ]' ]' d. h0 ]( b3 U1 O( e
[% z, a$ n8 {  s( S2 \* P1 Q
if( length (item i
  n2 |: g6 B1 V  h$ _[trade-record-all] of customer) > 3 )
" b. m& D; v9 q  R2 S, v9 y* k) w
[5 ]" f7 Z# ]/ a; A5 W
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)1 F8 U: Z. e$ e  L1 c
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
7 W9 S8 s3 ^/ A; [. _3 u[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]3 x0 Z+ E3 O) s
]1 c, X2 }- q' ~0 M8 L
]
3 E9 _9 n) D( v5 \7 lset global-proportion note  Q. F1 c# o% z5 W* G% \
]1 V. Z( R, X, b; {/ b6 ^
end
: g+ {9 v; @, ?, [  {
6 D  i* r9 }& {6 K: [' I3 k* r7 \to do-trade9 G+ O1 s3 e1 ^) T- c$ |
;;
这个过程实际上是给双方作出评价的过程
. M) y* T4 ]- _4 c0 Z4 E3 Q  \! T/ Qset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
% W, s; F) r7 |' j/ {% w# zset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价$ A6 j9 t0 i' i  Q8 R1 |
set trade-record-current lput(timer) trade-record-current
( b/ _! k  K/ E3 s; W1 @; [+ G;;
评价时间
  O5 o. J; n& z, I( H. R  P0 O7 n2 Zask myself [
1 c4 H, n, P8 t/ g* Eupdate-local-reputation8 @: J  e* `- y1 G& ~' h. V7 T, ?- F9 B, }
set trade-record-current lput([local-reputation] of myself) trade-record-current
9 p# `7 Y) e- t/ n% x0 H]  x+ }* g4 j5 s
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
; }* z7 h, n6 t  K, b) R) s;;
将此次交易的记录加入到trade-record-one% t! d! P) ?: P' Z) N
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)* F: r! a/ E3 f$ D
let note (item 2 trade-record-current )7 d+ O" d+ g9 R: P  F
set trade-record-current6 b9 a& U. ]; T) n! ?, h3 Y
(replace-item 2 trade-record-current (item 3 trade-record-current))

9 L, P1 ?9 c, M4 K" U7 b$ bset trade-record-current
) k/ g0 o! X* i3 `(replace-item 3 trade-record-current note)
4 R1 v, ^/ p3 D2 Q# t1 G4 a9 v7 ~: W5 A1 ?, O% m

' o% c+ }' d& Y  k5 b) Pask customer [; U; |. s2 q, a
update-local-reputation
; J& Z; G3 s) {" m; Z8 J1 F- }- w  Uset trade-record-current
. z* j9 j* G9 Y: ?" F% m; r+ O. T(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
7 n- E6 P' c, A1 h% F
]
% l9 S2 @2 ~# [2 k; x* s8 k- U  N& B0 x0 S' V% U
* ~/ X; e; S9 j! r: c6 o
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
7 D" M* U, ^, p8 V( j1 a- j$ `% B

% H. H7 y: {% {( ?: k4 _$ c; v2 B5 Tset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 }  q  r9 ~% |
;;
将此次交易的记录加入到customertrade-record-all8 J; y* V& `% Q2 ?# w
end8 J8 _0 a/ h9 ~+ m: T) D- R

  n3 A; ?  S% |; ?  e! I( nto update-local-reputation
/ ~8 F; i# f. \/ r' Tset [trade-record-one-len] of myself length [trade-record-one] of myself' ]- N7 b9 w  C4 O$ Z! }

" N8 J* u9 A7 z/ S: M, i. C& O1 `0 X9 q) m% A+ q  Z
;;if [trade-record-one-len] of myself > 3

/ l7 e9 u% q. i/ d2 Jupdate-neighbor-total
0 W' N2 v6 p9 i; o" s2 q;;
更新邻居节点的数目,在此进行
( v5 ]  V2 Q2 F" h4 m" s* clet i 35 H2 @1 A' W0 e6 Q( ~0 y* H8 H0 O7 t
let sum-time 0
4 ~0 m8 W6 i' h; |$ Q( p2 pwhile[i < [trade-record-one-len] of myself], _0 h( G7 t3 k* K) v
[
1 E. m) u+ O( A7 o; ]set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )7 z8 W. H! |6 O* ~
set i
$ E2 ~- s  W. Y0 O; R8 H( i + 1)
. a' I! J' v% k, u: @! B* u; U# ]
]# s- i7 N# o1 U: N9 Z: M7 R
let j 33 f1 Z  h% B; O9 H# G$ U4 B1 [
let sum-money 0- a2 u/ D- J. O, e8 h
while[j < [trade-record-one-len] of myself]& v. [5 y) F  _$ T
[5 l. d0 G4 ~$ K/ V+ Z
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)" ]3 p" }6 z. h& \7 u9 s  l
set j2 k& r3 I! i" p3 C( I! o% m
( j + 1)

3 ?" H8 |% P# T9 @]5 D; ~* k/ S* ^$ H7 Y6 u
let k 3
' D6 X: M# t2 ?' Nlet power 0/ J" U0 g0 p, }! r* g
let local 0+ T: R* F5 [) D9 i( H" c2 ?
while [k <[trade-record-one-len] of myself]
1 n! F# k  K: j; J4 j9 l  C) i# u[# D. G, f6 d. O
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)
$ Z2 W" y; R. A8 m9 g/ s9 p2 I+ `- bset k (k + 1)  `8 Q6 M7 ~1 c4 P
]
, F  C. J( F: S* Y) E6 S" \set [local-reputation] of myself (local)# E: Y; S/ i5 Q9 N( W
end4 ~  P/ Q! C- n/ w# u' k

4 z6 A, [4 b1 {: S) vto update-neighbor-total
7 y( r$ ?  |8 K! V4 d( F/ L
. K8 O) s( F% @- L; wif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. m& n" N- I/ n8 W$ y0 ~" k
! P! f8 y& O2 l$ k8 f4 N
' p; z; C4 @! B% _1 y- Q
end* {$ `+ r9 i9 d# A+ r

9 Z8 ?9 @& r- O  n. ?/ c: |to update-credibility-ijl
) N0 b8 _2 o9 O- K5 f; I& {( b' d; n  Z8 M# ?8 N
;;
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。
4 ?9 b& F) O# b% ^5 O# B, h7 elet l 0
$ W& ]: g2 g2 B7 U1 w5 nwhile[ l < people ]0 b  T, y* K! f( m6 V
;;
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
% m4 B: r6 M! W/ l[
7 q# J' O% W+ f/ ]$ Hlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)* f" W% N9 n, o$ D% X' E
if (trade-record-one-j-l-len > 3)/ n6 _5 J/ Y! P" x* d& \9 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% @3 a6 ~$ B- c" W7 y) t, _3 j4 d5 f
let i 3' X0 ^3 I" L) {5 z- Q
let sum-time 00 Y/ x* ^0 l( p  A; {; O8 J+ w
while[i < trade-record-one-len]
0 L/ y; m' H3 r9 h9 k[5 k' S# T# \. g0 `, K7 g! e
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )2 B: y3 M3 Z$ X) g% o% U
set i. S0 J0 F2 z0 }6 d8 c8 e/ q
( i + 1)

6 k% B$ I0 d/ f7 l" k]8 I+ ^9 h; p& C! T! G
let credibility-i-j-l 0
7 z! u: j; f7 U7 e  r;;i
评价(jjl的评价)
3 m6 W( K- F9 O& ?7 [let j 3
! h! D# y! B. d1 \2 Q: rlet k 45 |, y, u# i* T1 q, B: p* |
while[j < trade-record-one-len]. Q1 F$ ^  a4 V" B; p9 ?
[
2 C5 l. W( ^" i1 m9 [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9 j. V' Y+ z8 A
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)2 `& S4 }. g4 m! E2 g
set j
) s7 p# _2 ^( R" V( j + 1)

; _0 q. T3 ~' V# p]7 \: v7 J3 m! j6 o* T8 D8 m
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 ))+ b  k5 T4 l5 T3 e# l8 D, ~

( m8 x1 m5 D, k% n8 J$ Z; b7 A, K! `
; h: B( B$ }7 X
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
& e( q9 c2 c" D5 B- R1 Q;;
及时更新il的评价质量的评价
8 _5 ^4 c( E/ O& G8 r3 T$ Bset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
6 w4 Y! z/ h  U- ~set l (l + 1)- I2 K" |$ G- y8 R7 h. o( k" Y
]
9 X5 _" D: O$ C$ a; Vend' z& ^( [  r1 j5 x" o
. @: @- w4 T! g2 C+ I  z; c! S8 J/ U; G
to update-credibility-list# A3 H1 e" s5 @) O/ g7 |4 A  g2 F" P
let i 0  l% h; d' h9 d; E2 x9 \1 x
while[i < people]
4 s/ e) P. g% `/ A# T[
$ U! |/ q7 Z4 z" V8 Z! Jlet j 0* A  W2 n5 d9 w2 U
let note 0+ G6 ]. |( \/ O, {, d/ H
let k 0% K. W: J( v1 f" o, b* |( p
;;
计作出过评价的邻居节点的数目! D$ m+ E, C7 V0 I5 l! P, a1 j2 U- |
while[j < people]
8 h  Q+ ], L# b[. F- z! _( r# Z2 R1 r3 a7 @, K
if (item j( [credibility] of turtle (i + 1)) != -1)# f1 \6 L2 P, u6 e8 S
;;
判断是否给本turtle的评价质量做出过评价的节点$ y. ~) e& k3 W4 N3 ^" C
[set note (note + item j ([credibility]of turtle (i + 1)))
- a( c+ b, w; ~* c8 e* S;;*(exp (-(people - 2)))/(people - 2))]
! h/ Y1 `1 |. D! t% d9 W
set k (k + 1)
" _7 T& c3 ]) M]
) }  X" x( \2 N3 V  Uset j (j + 1)
8 {0 |7 a- u* S; ?  E/ Q]$ Z( m9 h1 j& _6 n# K
set note (note *(exp (- (1 / k)))/ k)
6 V2 A' r" i! h2 ]! i; j- o- vset credibility-list (replace-item i credibility-list note)/ R3 Y5 c( }& Z& v
set i (i + 1)1 w# Q5 Y( S' M- n8 c& {
]8 s+ C( g! U" ^$ ?" `1 @& c% m, W5 r
end+ [+ T0 W6 }' v& c) ?3 ?

6 {' T2 F) w% B7 D& xto update-global-reputation-list
$ F2 ^$ _& J  s; Xlet j 0
- H/ {: C) p* Y7 u; ~( `" U8 Swhile[j < people]) q5 k% F+ O8 x6 O" |6 O$ i
[
, H! u; b. v# m! `! L9 l' Hlet new 0
  q  j0 `" T/ g) N;;
暂存新的一个全局声誉( m" M* Y* h4 u* t" Z
let i 0! ~% A; G0 W% {, y* o7 s- w' h
let sum-money 0
! Q/ u) R' o3 _- D( b, B6 C& elet credibility-money 0" N' b* l' p' B1 p: f! u9 j/ J$ E
while [i < people]
' N9 i$ b/ A% ]$ F3 k  x9 n; D[% r' J  K! V# d2 c5 m. f. T" J
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))/ u* N0 e2 Z% Q
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))0 I( K$ Z+ F: C" @/ f3 u  G5 E: w
set i (i + 1)
1 m, g0 X) L( W/ ]/ r  H. K]
: a: q; B, R& Rlet k 0
5 B- J# g+ _0 I4 U: N/ f  zlet new1 09 i, \! O" `' e% R
while [k < people]4 v  O  a9 T, F+ o3 V
[. b" k* D, p" C* r% E+ }
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)
8 m$ r& e+ C( _, x) Vset k (k + 1)0 B3 k$ T  b0 h. G2 i
]
0 s7 a$ y, M$ a5 J+ Dset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
2 h! W# o( r. rset global-reputation-list (replace-item j global-reputation-list new)
5 {8 Q& j! x8 s: Zset j (j + 1)8 K$ v1 P  E9 P* O$ K( ~
]
0 I) i& Q, p% r8 F9 y! b- bend
: ]2 o* L  S- ?4 S2 u1 |7 V1 D% l. @5 A

3 R0 G0 x' g+ Y5 `6 M3 T6 L9 Q4 [# O* Y8 i1 V
to get-color
: Z% @- G. [* N% P: S
) N5 b7 E+ M8 Z& r; i( U6 i* pset color blue
* h8 H6 ?' z7 K" b
end
- R+ P& N8 c- z9 M- k
9 ?6 o9 D% Q: a, ^& r; J# o1 mto poll-class. f( H7 C: m2 s- a! h
end2 ~! X6 C1 V, D; |$ X

, q0 C& S" Z. ~0 Y" j0 D8 X- P6 Vto setup-plot1
8 a1 }2 P5 r9 Q  [: D
, |- S, |5 d+ Y6 w" \set-current-plot "Trends-of-Local-reputation"

/ x* B1 t3 t/ ]5 t9 v* p
/ m1 f- E, [/ Sset-plot-x-range 0 xmax
9 A7 F2 f7 t7 W8 q# r

" t1 _) v- c& j; ^) U+ z! ^( Y7 }6 cset-plot-y-range 0.0 ymax
# R# e- C7 S. l! P
end! n, N4 M- f, X; z  t, o/ u, U

: B, u$ `4 i; O: \! i) |. U/ oto setup-plot2
* D; t% ?) d, U) u1 J, b: M
2 q% ~* r# b4 j( N' K% q2 U3 Cset-current-plot "Trends-of-global-reputation"
# l% o, K: o+ \) k# U

$ v$ ?, r' p0 r' uset-plot-x-range 0 xmax
) t0 {1 }) k% B
# g7 s1 x- J( z: q
set-plot-y-range 0.0 ymax

3 ~6 \0 U6 }3 d1 C7 uend
8 {' Q" ^" M3 c9 p: }! ~4 z- A" R, k; l
to setup-plot33 J+ M* p1 T; k+ h0 q; U

$ K+ a( x# o' s  Iset-current-plot "Trends-of-credibility"

( N  e4 S( M# s, p2 x7 F1 c' l# S/ [6 w* X+ K- j. _, f- M! B: X
set-plot-x-range 0 xmax
4 u8 x. ?2 O+ j5 N! O

- }- N0 R( w- @- H5 l, Z" Z. Z9 Wset-plot-y-range 0.0 ymax
4 I. w  ?+ ?  W# y- Q& ?
end
* V7 e$ ?% E0 q6 J8 C% C3 O
* r9 `# f% P; Y- m6 `0 w0 f6 e6 lto do-plots' r4 W( A/ \8 V' O% A
set-current-plot "Trends-of-Local-reputation"$ t/ r! Q( P' M: m% U/ S
set-current-plot-pen "Honest service"
8 a) y" h1 m- i7 V$ @7 z4 tend
) z* Q, p, ^. z5 N9 N1 O0 ?  _, d; z' v3 D
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ]

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发表于 2008-3-19 11:33:07 | 显示全部楼层

有点困难

没想到挺复杂的,我去问问师兄们,不知道你是自己建构的模型还是其它模型的改进,我试了一下好像setup都有问题,别着急啊,呵呵 。
发表于 2008-3-19 11:34:29 | 显示全部楼层

还有啊

发表于 2008-3-19 11:35:59 | 显示全部楼层

还有啊

能不能传nlogo附件上来,一个一个敲太累了,好长的程序啊。
 楼主| 发表于 2008-3-19 12:47:57 | 显示全部楼层
嘻嘻,不好意思啊,现在把附件加上了.  Y& q9 }" I% g. p& ?
3 X- ~$ |9 j# Q# {. L
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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