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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:
( H# f  I3 r$ J. O, gto do-business
/ F. Q" o+ o/ W: V% r0 t% A7 N rt random 3602 f' e% ]' c: R( o
fd 14 z1 f% p4 H" N! T! F
ifelse(other turtles-here != nobody)[% \2 M3 Q$ U& h3 z1 C
   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.
+ E# [+ ^: k& n/ G# S. ~9 R! a4 @+ A5 P   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    # [# Y8 ?2 C) F) u: N, h5 M5 ^
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
! R" `4 G3 r1 Q- U( Y   set [trade-record-one-len] of self length [trade-record-one] of self
' P8 F3 d* l5 z   set trade-record-current( list (timer) (random money-upper-limit))  ?% w+ b, n( T: @3 d$ A- Y7 {! ]

8 ^, V# m7 @& ?  `0 m1 J6 v问题的提示如下:) o( N5 _0 S% l3 D" _7 y7 S

' h% @  Z* X6 W9 K3 `. qerror while turtle 50 running OF in procedure DO-BUSINESS
1 \5 [8 b& h, o4 C2 f1 v  called by procedure GO$ [# K( U3 g  s
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
: u% f% [) H! b
(halted running of go)
) m4 q& \' O$ \$ n0 o+ m1 r5 U  ]8 P. ?5 \2 v
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~~  o; I. J* K' y' }9 X* 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
" H+ Z1 s  M* I8 Hglobals[
# k! c' f$ X; S4 u7 }% R5 oxmax
2 ^  ]. `. n1 `ymax1 X  U3 z- `9 H% G+ g! r0 h7 g) @
global-reputation-list
4 Y- B/ S" \! ~6 A, C2 z/ P9 P6 d) ?) N* G
;;
每一个turtle的全局声誉都存在此LIST) W9 C" V+ T5 g3 Z2 t3 l- d4 O& H
credibility-list# g' A( u* g' Y" b  e
;;
每一个turtle的评价可信度
! O! i# i6 H6 m2 m( @9 Ehonest-service
; h: m: y/ O$ kunhonest-service% a& H  @8 x1 b7 ]6 H
oscillation
  v* X% J! ^4 D3 h% vrand-dynamic3 ]1 J5 e0 C3 G7 |9 q! o
]4 W' q0 m% K9 Y1 H4 F3 Z' \0 y
' e% s( J1 L% V2 h
turtles-own[- k! H" P1 n" H% @$ K
trade-record-all3 R# U, v3 \/ W- h
;;a list of lists,
trade-record-one组成
/ c, _( f- s6 Y: R4 Xtrade-record-one
# S5 ^6 `6 s# m;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录8 {' w1 {* s: B. _1 o
" M/ [# [& Y' I. M# p( q7 S
;;[
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]]- K) q9 l5 V5 P* G6 {) G
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]
) ^. d" N; R+ Z$ k% A+ |5 qcredibility-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
$ \7 x9 H% H1 T6 e4 Xneighbor-total. `, T) c# L6 S8 V
;;
记录该turtle的邻居节点的数目
' ?* `5 n! S- v8 xtrade-time
; [$ u' Q' g9 b5 _0 ~;;
当前发生交易的turtle的交易时间8 k7 X) Q/ |7 e" J4 B! ]/ Q
appraise-give
! q  e9 V# Y8 M2 Y6 I3 M& g) \;;
当前发生交易时给出的评价8 |: S4 [; L  K1 x3 o8 ]; ~
appraise-receive, V9 v6 c  h; k0 @  ?
;;
当前发生交易时收到的评价
2 c' g; _: [5 B0 w* H" fappraise-time
6 |- `! g" T9 D7 r' }" u2 U: U' d;;
当前发生交易时的评价时间& `1 b' q7 E3 ~6 ^, o+ q6 z+ S
local-reputation-now;;此次交易后相对于对方turtle的局部声誉+ f6 W9 n7 V2 v! M
trade-times-total
+ v2 f8 v% }8 l; O8 H  G, C6 G;;
与当前turtle的交易总次数7 j, G) y- d. |9 I
trade-money-total
7 u( f  b  |8 V! o9 a# E! l;;
与当前turtle的交易总金额
2 @5 T/ T  p* T. p. u( p6 }local-reputation
6 u, _  P2 ~  P2 E  ^0 Gglobal-reputation
) g2 d" p# A& icredibility1 I' O1 B/ |; f2 `6 L% p
;;
评价可信度,每次交易后都需要更新$ v9 n! `. L9 K4 c) _3 z5 l
credibility-all
- `5 E4 H5 D% C;;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- ~2 Y* @- B2 Z) R, [8 ^

! J  D% V$ Y* B7 D, g;;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, t+ A" w7 C# C  [6 _
credibility-one  [- o' p! c$ ^
;;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& T- y& F# H' t% \+ o( ?. {
global-proportion
+ l6 s. l' Q0 a+ v* a" K$ B/ h4 ]customer; m/ y+ V2 V- Z0 x3 I' j0 n! @* W
customer-no0 b* G( ?* A5 T1 K% l; I$ i2 h3 C
trust-ok4 a' f/ k4 J! H
trade-record-one-len;;trade-record-one的长度5 K* ?2 D" J* S' W. m: J) o
]+ M( K2 g7 t# B
. Q. h" H5 c8 ^' Z, j5 q9 w$ y
;;setup procedure
  Q/ n, v7 x2 U: p" _6 y2 ^' Y1 g5 U# ^- G8 M1 ?- `2 }1 ]  ~
to setup8 b5 r+ F  ?* y& ?/ |# |
+ R0 q9 b1 Y% g7 l5 K/ p: V( A
ca

( v; k' }# a8 j+ R
- `+ \2 b" u+ Sinitialize-settings

: k+ p) t; w1 g( p! P& B
" r/ y, R" Q# U7 gcrt people [setup-turtles]

6 _& x$ h  G0 `# t- B8 ~5 A& @  O6 r- A3 d  u
reset-timer
1 @+ G# ^6 C) x
1 l# J5 Z; w, L5 r
poll-class

6 v( Z1 S8 h$ I
1 _# a6 K+ H  v* C! ^- ysetup-plots

* l% S4 x8 c. K6 s' y& p2 V6 b$ p+ |' a5 y
do-plots

: i- N% T# h9 ?" Nend9 v/ t) a' c: I) ?. a+ b6 r
6 S+ w5 n& \& {
to initialize-settings7 `5 x  w2 d2 C: ]9 h
) J; Y. V; r/ |& T& n: M
set global-reputation-list []

- q6 P- t. u4 P( @/ o, N% c; L& Z6 x: z) i
set credibility-list n-values people [0.5]
  V8 E, s* b0 ^  @2 q: ~

; q" i  j8 Z% m+ Vset honest-service 0
2 K9 K; p$ {7 x1 A
; \3 H! e7 ]1 t/ P" d$ N! f' y
set unhonest-service 0

5 X9 @3 X' [9 B, F/ s& w
8 \& F' W( F* x1 [2 Qset oscillation 0

3 _8 `  Q- ]: ]; f+ b
0 K4 S7 O1 e5 Y% K. nset rand-dynamic 0

* K, y7 Y0 ~, Bend9 _$ J! B4 [6 z; n1 T5 {

) @/ R5 Z' p9 y* Z/ ]. uto setup-turtles
% W. W3 e8 t0 G6 kset shape "person"( L) X- ^3 F+ ^  R1 r& c+ L
setxy random-xcor random-ycor
9 ], Y3 {6 i" ?3 u5 xset trade-record-one []
( ^& _  @% F0 ~4 g' p/ ]0 |

& A/ Z* |3 j( c: N& D' Hset trade-record-all n-values people [(list (? + 1) 0 0)]
' h3 D3 g" c; i0 ^  t' ~4 L* n

. l  ?& E! n# C; S5 _# Bset trade-record-current []$ P) i8 B0 ?( \: J
set credibility-receive []
. M! h9 M! G  }* H! R6 ?set local-reputation 0.5
& M4 P! j- i$ _  wset neighbor-total 0
. ~4 e" ~/ X" L7 W3 u: f4 Tset trade-times-total 03 m7 g. O3 H1 N3 t; }) T1 h
set trade-money-total 0
2 H2 R& M" N, Eset customer nobody
3 G  `$ f& f: |9 _( r( Cset credibility-all n-values people [creat-credibility]$ _; b3 f4 d) g% Z* M( M
set credibility n-values people [-1]
; \( K0 b: y$ J: hget-color
& W# {7 {. w! Z

0 X$ i0 u) p9 s, y# ^1 Uend
) f4 H: D7 x2 x( t% @- |9 [! q+ t
to-report creat-credibility
- I: N% e0 k: o! j# kreport n-values people [0.5]
0 z+ }8 e# A6 a% Y* g2 yend
3 r( n$ {) O+ U1 X/ c0 C
! ?& Z: a& n7 z4 g: G% Pto setup-plots
6 l5 l/ D+ V" c) x0 [0 K- T
) o$ W1 u" o$ B8 |8 v# }. Rset xmax 30
1 t: V# u, c9 i. ]/ m$ n$ V& U

# G6 [0 `4 ]. g/ E9 A2 fset ymax 1.0

' I9 J) P  }7 z
0 P2 w& ]2 _) _clear-all-plots

$ J! i7 u+ v( K: v% I) v5 m5 k; c+ p
setup-plot1

  `5 T3 _# L3 ?2 C4 m9 A* V
: G7 b9 W% A1 r/ o5 J7 d5 }( E4 dsetup-plot2

2 d+ M/ }! ]* i# n/ P
& G1 M6 i! i0 B9 D6 M" asetup-plot3
0 p( P2 _5 w6 z
end  O! A7 q9 g. Z0 |3 ]0 p/ p1 r: W
2 R; M6 l% |/ _+ T! v6 ^7 a6 d
;;run time procedures2 c2 h9 q7 |  [9 n) D
3 e3 ?9 h- U. F! B; Z, F
to go
4 w; K$ S* U4 p# q$ U% ]
9 O# f( ?1 y# Q: v% k0 O' uask turtles [do-business]
6 w! e" g8 y: Z- N3 D9 g( \6 Y
end% P4 ~- ?8 ]- @3 F9 P, n  k! @

8 J- M1 v$ [* ?% ?% ito do-business
$ S+ b. S, _7 Q1 M9 V. |0 V  r

" E& }0 X0 o/ \7 @! ]# H. k1 w
rt random 360
( \7 q4 D0 g5 g2 {
1 [  v8 y, {! X  z
fd 1
* l3 h9 |3 S2 c2 W& x: J, w7 D" x

& O0 h9 }2 m4 _$ J+ i1 Jifelse(other turtles-here != nobody)[
$ C2 j8 D5 @" L2 S! y! r% X

% Q' H, H- p; [' H! ]1 Z  U7 k/ }set customer one-of other turtles-here

2 }) u8 f0 e- T, q8 U  e: ]9 m, O( K+ k3 \
;; set [customer] of customer myself

+ O8 o6 t0 N0 E! b& J  D  W0 i
/ S; y4 q6 R* l( S( u3 ]set [trade-record-one] of self item (([who] of customer) - 1)
% p, [3 a1 _% l[trade-record-all]of self
% o; Y5 g- \# q;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

1 l) P4 b- K6 ?+ ?: R& M6 Y* A6 l0 Q! W" p
set [trade-record-one] of customer item (([who] of self) - 1)
6 H1 f* m8 {7 m4 o+ v" Q[trade-record-all]of customer
# I0 ~- a. R' b+ a( s! ^5 i

2 y4 e2 X4 ]* F/ g3 `5 ?" c% S) vset [trade-record-one-len] of self length [trade-record-one] of self
5 C4 W: ~8 p9 I: \! E7 I

( a2 Q7 y, a. B) W4 L; }set trade-record-current( list (timer) (random money-upper-limit))

& F/ M3 P) N4 G" c
2 ?# O4 r* S) d; Y8 l; ^ask self [do-trust]& K4 ]" P1 k- C
;;
先求ij的信任度8 G! @6 {6 q3 c; d& R3 }
* k2 P3 I+ b9 A+ _! d1 m" s  }
if ([trust-ok] of self)
/ `" C5 L, O" _) e;;
根据ij的信任度来决定是否与j进行交易[
- p9 _+ X9 x/ O- uask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
  C. V5 ^' o  m! v( ?, c( D+ f# Z* [! ^% J( I4 F7 n" p
[
6 v3 G! m5 J4 F) U7 O6 [
; y) [& o, Y9 l+ s/ ^; e" x
do-trade
" ?" q+ e4 s) B4 P, Y! b
; w3 {* ~- P) _  S( j
update-credibility-ijl

2 k% }  S1 ]( A, P& y5 o
( v6 {/ q( J4 n* ~: Q+ T$ l3 _+ f, ?update-credibility-list
: X, r1 @2 ~5 g% g+ C+ M" q* p
) D! r* e+ J: Q3 ?2 U

$ }. I/ V/ b! ^- w: tupdate-global-reputation-list
, {! W, J3 S9 s3 P. {

, W7 P' \( y5 {poll-class
3 N: g- O1 W! K: ~+ g( H
4 R4 p* V& e) g7 B" G% y
get-color
$ e! |/ O1 H6 V+ r3 ?0 E
- H$ g5 l% l( d, D) j- y5 F
]]
( [; L6 m3 w% f3 U. t1 O3 h* \8 E
;;
如果所得的信任度满足条件,则进行交易6 b' }. C# ^7 G  |9 ]
$ p0 Z) N+ q+ l3 g& w4 j. Y  }
[
6 S3 J1 J7 a& R* ]5 ^' V9 `) O% k
+ g5 Q/ `9 M; ?" t" a# R2 E6 s  E4 J
rt random 360
. V$ P2 U4 H1 v2 x& P% E( n
2 R! e/ Y% D' i9 z* g! f3 U
fd 1

# w8 d  i* d2 ^6 S- n
" P7 v- S- A: }8 [" h]

, l$ T) p) d. i. C' y$ ^
1 H, ^+ `/ k% J0 I2 B) oend
* d3 s4 R* ]1 j! _9 _- `7 X2 O7 U

+ l3 r- q% P( y' Q8 J6 Wto do-trust - M* ^4 j1 I6 j: K
set trust-ok False
2 _& h' S+ I- ?2 d- F. [( C
6 f$ t1 Q( G3 v% }5 G% M& n
$ z/ H0 s3 }# z6 \: o; D
let max-trade-times 04 k& |+ C3 g, _/ i% Q
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- s: ?3 E3 m7 w4 K0 g
let max-trade-money 0& s( x2 ?. }# c7 N9 y% X, E
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
: ~5 W2 H+ C4 k( jlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))) H: ]) ~, ~' X

' h2 c: [) k  ^' t/ B
  \! E  c- {2 k6 r) O
get-global-proportion  Z, J8 w4 P! e% n) Q
let trust-value
0 E7 Q  q0 D3 `/ G- Blocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
: w+ G8 @: D% J" A4 Q# A( F- K
if(trust-value > trade-trust-value)* l$ L; ^' k( z) {
[set trust-ok true]
7 X3 Y7 G3 ~' yend
  h4 W' W4 x( l
9 X/ s% F; |/ |. Wto get-global-proportion
8 N' [; @$ g- o1 vifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)- N8 c5 R) ?7 {( O2 u
[set global-proportion 0]
4 F9 ?9 E# T& G$ S[let i 0) R6 ~3 y3 q0 A; U
let sum-money 0$ P( T4 \& _; B2 B: R6 H3 h
while[ i < people]8 I$ U' ]6 ?' a! u2 W. ^
[
# V: |* n5 |! D  y# n  [5 n/ Tif( length (item i
9 K0 ^- v# W. z6 H# B) p2 Q[trade-record-all] of customer) > 3 )

% [! }( y; c  a5 M" n[
! \) B6 G$ Z, r. D9 lset sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 X& s1 `! m- {
]2 e% }' r1 H; Z: W7 R
]9 }8 O, U1 D& S& a7 k# V
let j 0* I2 r$ t! P0 o( L9 _, ~' Z
let note 0
" a! Y! U' ?% N; O2 K' d7 zwhile[ j < people]7 L% o( D4 T5 U5 h
[
: P/ k/ T7 U2 u: S4 `if( length (item i. w# u' R% m9 Q' D
[trade-record-all] of customer) > 3 )

  Z+ M& p9 Z) Z[
5 H0 }5 X" u0 r! \  }ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 B, ^; E4 a: {5 h* O& ^! _/ s8 ~' I[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
: d1 T6 t, G" v# x- s: `[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
) {& i. J: Z! L: ]9 b0 v9 |]! O* {% B- h( ]; _( v/ x5 c! s
]
1 U8 ^. ^- B- \! ?4 wset global-proportion note  G( P. t, j3 I: _- Q
]) ?( G" ?, L: a
end4 {) O+ M  e0 I2 {
( Z! n( V6 i1 X. t4 W! t) A1 X6 W
to do-trade
" @; y) J/ Y2 j* O9 J+ z;;
这个过程实际上是给双方作出评价的过程
7 M5 Y: R  j0 X5 m0 Kset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价3 x) Q9 A. U! p! E
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价+ q$ h* x8 H: H9 z8 Q% o! h
set trade-record-current lput(timer) trade-record-current; Y' D" i' y; L) S* U) q1 u0 k) Q
;;
评价时间
1 g) s$ J$ \" G7 t1 ~! eask myself [
* Y9 g% }0 s9 Lupdate-local-reputation
$ e1 [2 Q5 Y# d: o( Tset trade-record-current lput([local-reputation] of myself) trade-record-current) V4 y# t9 O  _' s- |
]/ E' l3 z- A( F. r; j
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
1 A$ {4 I$ f6 _; Z% T2 A;;
将此次交易的记录加入到trade-record-one  x$ B* J# R8 I# C& A* Q
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 @- P- E8 W8 A* m: I2 y1 ?5 B& h
let note (item 2 trade-record-current )$ e! f0 [9 J8 u- W
set trade-record-current5 p3 `* M6 w3 T. c) \( [
(replace-item 2 trade-record-current (item 3 trade-record-current))
7 }5 k$ k" N2 V3 o5 z
set trade-record-current' p: ?; s+ T4 T: Q$ l( M* n7 w8 k
(replace-item 3 trade-record-current note)
  N+ K- @! m, A  }. l! e( F3 e* i1 W& T% V$ z; T* K
: Y0 R8 s, |$ y' N: z; }
ask customer [
& y" }" p9 @* D8 G3 {  ~. D, R4 _update-local-reputation
6 _! `# u, G' g9 S% nset trade-record-current
1 i3 F0 \9 w9 @# }# ]# T(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 z# U+ H4 C  F3 f* G2 j
]
5 b1 [: \# k4 s8 G+ I" j5 w2 X3 n3 o' j7 v

( c2 j7 _( k# R. X) u, Y  Cset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
( }* s( O( A* X; g% H
+ C( T" G1 Q- G7 p# F/ r
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), p& B: ]+ o3 E5 S* {
;;
将此次交易的记录加入到customertrade-record-all3 |! }  F* V$ e; M. t
end
3 z, Y. A: J- l; p+ B6 o8 g& P' i. {- w4 i! X9 P" {
to update-local-reputation
) D3 u( C7 L- G, yset [trade-record-one-len] of myself length [trade-record-one] of myself
1 n1 q8 L$ {$ R6 Q: w7 e+ n3 e0 F1 a- F" B

6 O+ A# _; O/ p# {2 M" f9 o;;if [trade-record-one-len] of myself > 3
6 s/ N) K8 J6 p* c4 K
update-neighbor-total8 F0 r0 v' s! B% ^* C& l+ S
;;
更新邻居节点的数目,在此进行
! r' O6 E, L5 _% p" E( Xlet i 3! v8 j/ e. ?% o* C; I
let sum-time 08 \4 a  F& H% _" w) W' `  x2 X+ L
while[i < [trade-record-one-len] of myself]/ l3 E& r. a' ^: e, T  f+ z
[& U- t! E( b7 R- x
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
! h( V  f7 q" [7 `) R  T* hset i
& k8 _" u) ]0 b; `* x& j2 J! D; l0 x( i + 1)
* t: f# o. g2 P  _8 @
]5 Y+ r! }+ R. X& u6 o8 n' Y, g
let j 3  \9 w5 k  U) e3 q- J2 O. }
let sum-money 0
! c0 A% r0 T% m# a6 i/ K) _) Rwhile[j < [trade-record-one-len] of myself]3 }& K/ n% ]& G. p
[: u% ~# s6 q$ G; o
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)) `4 K) a0 j  ?
set j+ U: }- j9 k$ @0 L0 y; C7 R
( j + 1)
8 j# z+ w( J) N: d  |+ ?& h$ B
]
" B8 k. R' Y. I7 K, e* ^+ mlet k 3! g) A7 w1 i( _% q# c( `4 h
let power 0
3 G( O- H, l$ [0 ylet local 0
; @+ x& B7 ^) V/ |  Q$ h% k1 @while [k <[trade-record-one-len] of myself]: x6 w. Q4 y2 H6 \
[& d# {- f  M3 ]) I
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) # J- e4 E( E3 u9 ?# }* k
set k (k + 1)
  Y! b4 V# W* |# N  e% Z]9 E& @& a8 ?. Y3 @" m2 o  W; q
set [local-reputation] of myself (local)
% o# Q" h; @$ m2 p8 O& |end0 Z& e5 \" B$ ]# @/ S% b8 a
8 O8 T6 X! a3 U, A4 ~) R
to update-neighbor-total5 i! k) S" K- L" W9 f4 m7 `7 L

0 D6 Z5 Q. L; Z9 ?7 f: `if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
9 Q0 A9 F" u" k& B. V' T
' b+ c0 I3 O, E" d

, Y: ^0 M) H. _) O: s6 Lend
; W+ n  M: b. k3 j' ]6 D) I7 L' D
( F+ G* R( I5 Y' Ato update-credibility-ijl
# ~2 S+ g) c& c# c
" ?% Y* [% J  v) a! F* ~6 [;;
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$ S: m1 O, }" G# b
let l 0
% L" A4 k8 C# U+ vwhile[ l < people ]
7 m3 v9 C1 x: R' a' L# g;;
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' W5 ~/ t, ~" H) g$ A+ E. R
[
3 U! i4 G* C7 O# q  ?9 O' M9 glet trade-record-one-j-l-len length item l ([trade-record-all] of customer): ]) O( ?& g" P. t1 V4 t; L
if (trade-record-one-j-l-len > 3)
* V. w$ i$ n8 l" J8 _4 l9 |% l[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+ s* P  X  Z0 y) ^6 I
let i 3
% o% q5 z2 ]% |! R; ^3 Vlet sum-time 0
: |3 t4 J- c* u- M* s- [while[i < trade-record-one-len]
7 h/ s2 L) d7 f* R[9 b  R) i& u; ~
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
! k  g& d; ^" Q8 w& w8 I* Q% ]set i
: Z9 r5 K4 I( m, P  F" x. z! ]- p& M: D1 {- k( i + 1)

3 T9 K) v( l; j) j) F]+ f3 O# b  x& a: @
let credibility-i-j-l 0
* x+ G6 q: V& T- x3 V3 U;;i
评价(jjl的评价); A3 |0 e- V4 N+ Y. d1 K$ {$ r+ R
let j 3  r9 ]6 Y) o; a& d; ]. W  F
let k 4
( L1 C6 X% Q' p+ ^7 ^9 o5 N! Ewhile[j < trade-record-one-len]
0 C, C$ z0 U% ]+ w# w[. `0 i& t3 [& V' A* Q/ i& }" S
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( s, m( I6 k7 l- o
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 W1 r- y) u2 T% iset j
+ D, x; Z. Q, a* V" b2 ~# z3 I( j + 1)

+ F# o- r3 k9 S, z]
6 @5 Y! J' a0 G" r8 Uset [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 ))5 J. _2 S% S9 K: p+ t: b8 t# i

. ]& N1 A( S) ^1 Y  U7 D1 b

) N& H3 Q+ O8 J4 p+ jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
! m- F+ G; B' ]1 y0 H;;
及时更新il的评价质量的评价
2 B( H3 H% c, x0 T0 [( [& p- N; Mset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
% m! N4 |# f# lset l (l + 1)
2 G+ R+ O; X, A$ c]
+ v$ p# c1 H$ T# p$ dend
  c% j: J1 n$ \9 B+ D' A$ `* v  v' k+ T, Q$ m( q
to update-credibility-list
! b* N/ F5 J9 t) Rlet i 04 Z1 |# G. g2 d+ V
while[i < people]8 K) k$ }0 \- X' P
[: S6 ^& R% j8 n- S9 @9 S
let j 0
3 H* H+ W- X6 L" z. W6 T1 [; blet note 0$ ]$ r8 m  z) y, Y
let k 0
0 Q/ v: ?7 W4 p' g' v;;
计作出过评价的邻居节点的数目  F0 P# S' a. H9 i: l4 S
while[j < people]. ?$ o$ v+ ^1 h& R/ y: Y9 u
[
' Z2 D  F2 q* I2 r1 e& w1 yif (item j( [credibility] of turtle (i + 1)) != -1)' H+ v4 B* B. N- G; j. Q
;;
判断是否给本turtle的评价质量做出过评价的节点/ D0 r% S  R1 u0 k& B. u
[set note (note + item j ([credibility]of turtle (i + 1)))# \: L/ z* h$ J2 t; l3 \% J0 L: B
;;*(exp (-(people - 2)))/(people - 2))]

( b8 l9 G: {; cset k (k + 1)
( t% b# j6 _# j* x9 T8 u) v/ z]
( G' x0 K0 l+ n, x4 m8 U- g: Q' b) fset j (j + 1)
; y+ q6 @' u) m]
9 P$ N# {) U! H7 X; o" Eset note (note *(exp (- (1 / k)))/ k)
- o8 C5 O' G5 P: O, g; w* Dset credibility-list (replace-item i credibility-list note)
; }' I* M  z& v* r9 [0 X) Z4 Iset i (i + 1)' `' B; T2 G8 z, C$ b) y; }
]
4 B3 y/ {4 {. s# |+ R$ l) Aend
4 v, m* c3 u. l+ H- `# ^; X  ^, i' C
to update-global-reputation-list1 D  @$ w8 P3 T  w* L( D2 [4 |
let j 0
. z3 A# v9 l- u* Mwhile[j < people]& d/ X7 L1 d9 {$ Y) R! i$ L6 a4 C! n
[) O6 t  e6 A5 z
let new 0
* s0 j' T7 R, j; U& T;;
暂存新的一个全局声誉
; B' f  |8 v; o" c' c4 |: Klet i 0; @2 }% y5 {" G
let sum-money 0
9 e! G; c6 Q1 Rlet credibility-money 0
- H; S* P/ H0 h$ {3 d$ F7 Kwhile [i < people]
3 o4 h" i6 @4 i7 D# m, T" o[" z& S1 T! F' @
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))& c5 Y, {, t: H2 {, R
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))9 K& U" `( ~. W
set i (i + 1)
2 G8 H; v! `; n8 Z]5 V/ N& v5 E+ A7 N1 ?  F
let k 0. P4 s( p% w% _: N
let new1 0
; u+ h2 `  c6 S  S# k8 F) P2 Uwhile [k < people]
+ y9 a5 G' I- I3 s) k# U' z; O+ h- K[
' R# U$ M; _/ A5 s  ~3 N+ |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)) f. ?$ c: {9 ~  B
set k (k + 1)* w& b1 H8 }, U2 [. H
]
! w- `- v% n' q4 c' J. U- vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) $ `9 r* L1 g- G; w* m! z
set global-reputation-list (replace-item j global-reputation-list new)8 ~! O' H2 t" y0 h
set j (j + 1)+ L' t: h) o3 _. F0 I* G3 @: |
]1 `& u, n& \7 m, Q% w4 s) M
end, P5 o! }+ K3 {0 i+ k; a" R

8 n* ]  q. `' x+ U2 k. \+ I
  p# m9 \3 j0 Z4 L- V; z5 J+ w, F# l$ n- A) O
to get-color
+ x; q( Z8 F" k: \3 M1 z
7 Y9 R; y( V# p/ {5 t9 K0 I0 s- Fset color blue
( L6 {- u+ S( A- l! Q6 j. M
end4 p* @3 s3 A) b# _, }7 r8 p
: P, Y  J( x3 J" V. J  A$ g' g* g& r
to poll-class
/ K/ W5 F. r9 ^3 f0 Cend2 P" N- O/ n& w$ j

4 k7 g) X  K. g, Sto setup-plot1
. Y+ s% H4 ]  k4 n7 [$ f6 `/ z& F) ]9 Y+ Y
set-current-plot "Trends-of-Local-reputation"

7 v& R5 V  h- p
$ X8 C' l' o! J9 p8 \" p# H4 Hset-plot-x-range 0 xmax
( _8 w1 V. ~4 c/ N9 _
2 t1 C" I$ z, j8 G
set-plot-y-range 0.0 ymax

* G% Z& V* F" y6 J: _end8 i  z/ Z% |9 _* ~3 }( X; a/ x
  p( S/ [, y( d$ X2 Q9 _: {, o
to setup-plot2
- U6 u: F+ q2 |3 W) a
$ T, Z  I  j- n# z% X- O5 v2 _set-current-plot "Trends-of-global-reputation"

7 I2 c7 d* i# O/ }5 Z
( u+ Y5 A+ `5 B% }- ^* Vset-plot-x-range 0 xmax

* x5 x/ G! b( @* h! F3 q7 O+ x  @$ q
set-plot-y-range 0.0 ymax

5 d# M; c* I* _. `; C1 d0 u5 d% e5 Tend
0 M( U1 [( m; R" X7 A! x! b2 |. s. t1 F* T5 u1 S. |% {
to setup-plot3, p, h4 p/ t) r) m4 t

/ D& B6 r; R" {* p7 {% {/ Oset-current-plot "Trends-of-credibility"

* {: U2 e" d4 j9 p9 @" n3 V3 g4 V3 c5 n6 b6 K! n5 k7 K
set-plot-x-range 0 xmax
# y' W4 [/ k* }+ @0 X: d
3 @7 Y2 Q0 R9 f# s9 x5 d. Z
set-plot-y-range 0.0 ymax
/ l; Z  ]+ ^+ ]' s7 Q& d* L
end( C+ T( J6 ~, m9 z3 |5 m  s4 |

$ @, ?1 O+ F- @1 x' q3 L% oto do-plots& |6 k) }2 y9 n- }; h: ]
set-current-plot "Trends-of-Local-reputation"8 V2 J4 B  y# i! `% r9 k5 B
set-current-plot-pen "Honest service"
+ O& d4 H7 n" w, Z' zend
6 M  [2 r/ D# _; `- N8 }' b2 _: t5 k4 V& a0 S9 s. C
[ 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.5 Z& a) B  y) L2 i% }

9 ^" ^' a4 }4 G& 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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