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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:2 V( y/ ]0 I  I" q# h" d
to do-business
, N4 k7 S$ N) U: j! A, C/ G rt random 360
5 q6 K1 L( F& Z$ G7 c/ b fd 1) |2 R% a# ~5 l9 {# _( _1 L$ h- w! T/ F8 Q
ifelse(other turtles-here != nobody)[
8 e$ u/ |2 t+ `7 p) Y0 R   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.
- |$ m8 E0 p0 B( i$ [" n! q   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    - X& D. c3 g6 `: i! m8 _
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
' b7 u8 r8 i9 e% {; Q" p) I# k( n. f   set [trade-record-one-len] of self length [trade-record-one] of self/ V* l! I) O* m2 \
   set trade-record-current( list (timer) (random money-upper-limit))
4 m0 m4 j) `  P
$ y0 O" f; V9 W2 o2 p1 c! B问题的提示如下:
, E, E! j/ Y% h% b( g. a- ~: X! k+ I+ _- d; L' j) P; T+ P
error while turtle 50 running OF in procedure DO-BUSINESS
0 \& W8 q- S6 [, H4 j+ s& y( K  called by procedure GO
; d  g3 p+ T& x2 I  gOF expected input to be a turtle agentset or turtle but got NOBODY instead.
9 I  N1 `) n% Q7 t- I
(halted running of go)
  W( y  }5 C2 x/ d& p1 z
) e3 h5 z# H! O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 ]% u+ m: Q" `3 y, R另外,我用([who] of customer)来获取turtle的编号的方法对的吗?如  set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    中.

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发表于 2008-3-17 17:34:20 | 显示全部楼层

资料不全

你把你的所有程序传上来我看一下,估计不是大问题。(南京大学)
 楼主| 发表于 2008-3-18 13:10:54 | 显示全部楼层
你好,这是我现在正在写着的程序,以上问题就在其中,请多指教8 Y0 z% u: l$ f, {) K/ _
globals[
1 H4 _& m% G1 Txmax
! ^8 c7 f, w, X- z& B$ wymax
5 i: x# V( k$ ~  o1 w) ]* I4 Uglobal-reputation-list
2 \0 E# u- g$ ?7 X& s8 ?  ?, U7 f
;;
每一个turtle的全局声誉都存在此LIST" Y; i8 S9 E5 x/ k+ Y
credibility-list' D( \4 n1 x* e. G  x( @
;;
每一个turtle的评价可信度8 G) T" A' q1 z, R
honest-service" U, R4 X/ S1 T0 s
unhonest-service
1 P6 m  X. ]3 W' \oscillation) W9 j: C) z# A+ Y* u3 h( ], M
rand-dynamic
- o6 R7 b" @$ D6 C7 w, }& N/ _3 m7 Q]
2 _. i6 a. B9 s; C$ \  |1 a/ s4 F! h& e' j/ G! l: C4 D; U
turtles-own[; }3 y* i$ ^' N2 P1 _
trade-record-all7 G' U$ I$ _% w7 R5 F
;;a list of lists,
trade-record-one组成" ]6 U0 h  X8 L& e9 m# M
trade-record-one( `$ N$ i* W6 ]
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录7 _! d; J' H, n( b0 `

  Z) Q; l4 L. j( h, C;;[
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 u+ @# e4 L2 r* D
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]) E- D% ~6 @+ |) s3 q, ^
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
  ], p3 Q9 `0 zneighbor-total
- l2 v9 z4 y- M7 `! E5 l;;
记录该turtle的邻居节点的数目" r& f: @7 e9 D2 J
trade-time0 d5 ]4 O; e% V5 _6 v
;;
当前发生交易的turtle的交易时间( T  L9 e8 u3 ]% _4 s1 W4 U- f
appraise-give
. j1 _- H* G& u- {$ Z7 v" o;;
当前发生交易时给出的评价. i' q% h! v8 |& h/ n6 H5 c
appraise-receive+ x: d4 c8 B  ~+ N$ \+ i2 s9 _) Y
;;
当前发生交易时收到的评价
7 Z* `1 `) Q3 X( _* kappraise-time5 ?+ K' F; x6 J
;;
当前发生交易时的评价时间. L' K2 x- V1 d8 F- J" G) g2 A) g
local-reputation-now;;此次交易后相对于对方turtle的局部声誉9 N4 b. j( D  _8 r
trade-times-total
+ v+ v4 e9 o. z" f1 z8 D0 ];;
与当前turtle的交易总次数
! N, a/ J2 K, @' |! H6 j3 @% _2 atrade-money-total
3 Y8 k# A  `$ R( ]; ?;;
与当前turtle的交易总金额
0 G9 k7 y0 w0 @( j2 clocal-reputation
9 l9 @+ b9 J) Q/ M0 K# _: gglobal-reputation6 o0 [, f- _: K1 g
credibility, N- ?2 o, I9 m- F/ Y) U* z
;;
评价可信度,每次交易后都需要更新3 ^$ l% I: y9 u* _
credibility-all
% n2 i& Z( J, D; }  F' X;;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& z0 G' t/ y/ O. m" Q; t7 h, J

( v; t# \1 @: q' k8 k;;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
7 o5 [' @. |7 N7 x; i1 X' Ncredibility-one
0 |. b/ l& D5 O8 {3 \;;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' X' ]9 p' I, k; s- b+ @0 U
global-proportion/ w* n& z: e6 N6 g5 r7 G( f
customer# U# k7 A! J! {" Z- i
customer-no6 l' \5 j! q) @5 G( [
trust-ok, r4 O  @5 i1 A9 @1 z
trade-record-one-len;;trade-record-one的长度
$ @0 A: `6 A3 g& y4 I' o! R]
% K' e1 w  j  K4 y- [* a% o% c
  S; n5 G3 ^% a# s3 a2 ~+ u5 I;;setup procedure' z( A5 H- j' ^9 i6 z( W
& Z8 w- k* b2 c9 b
to setup
3 _, q: `' X' @+ t( w
" I& L# `- O2 Z# M& @3 E( yca
. F5 I7 q* Q  j; k- P

" n8 z: t" s$ v8 |$ w( y$ H9 binitialize-settings

* i; k0 h6 B9 G0 `$ J( k6 `8 h% g' V0 R6 a
crt people [setup-turtles]
: e8 a" S" ?1 y
+ @: Q2 m7 s1 p# j% ~$ b
reset-timer

0 t* ?6 n' n' ~) k  }. p
/ R% @6 G/ Z) t2 O" I" d3 wpoll-class
& }' s) V, t. F" @: h$ r2 ]

2 q+ z2 t1 U" L9 G0 |3 D/ }setup-plots
9 y# {; S* P- ?( [/ ?# Q

  y8 i* ]3 P5 Qdo-plots
1 [+ ?7 i; Q- R
end
  \" H' a6 U2 ?) l( V" Y$ U/ Q$ B0 K: w
to initialize-settings
6 v5 F* k7 H7 G# r8 D0 b. s4 y! V, Z% o+ z" C
set global-reputation-list []
. L) T9 i/ l( B0 S
2 K6 \1 H% F- w  l: ]2 x
set credibility-list n-values people [0.5]

' {3 t: \  J5 a0 v* i% I; b% Q! J: J6 ?6 t, `- L0 B0 {
set honest-service 0
1 {2 S% J( S8 @0 m6 o6 _3 w, V
* G: Z. m& q" ]+ }& r" a  D
set unhonest-service 0

! ?9 P2 z+ |; Q+ {1 f9 m  |4 Q% D. ]) a5 n6 t
set oscillation 0
$ D: r9 ?$ ]- N3 |" e; S  W
# ^7 Z9 m2 ~! V  ^6 W6 z
set rand-dynamic 0

7 ]! A( f5 |# x! E9 D7 W: Oend$ f% g2 \; g2 K8 Z. B0 X$ K; d

) ~* e2 l) ]) d0 `6 ~3 F  Fto setup-turtles & x9 ]: _% o" P; _
set shape "person"
8 E6 ]" i4 Z2 T/ J" I- [5 Nsetxy random-xcor random-ycor
. `8 F' y6 p) D( j7 }, xset trade-record-one []' D  g, m2 a& e, `. a- ?: F
9 O$ B: r: X& V
set trade-record-all n-values people [(list (? + 1) 0 0)]
' x* E! v( O; _7 L
2 ?- u) }& x) C" i
set trade-record-current []8 K+ m& N3 |3 B4 p5 l
set credibility-receive []
3 X) r( F+ W7 G3 Y$ L% H7 F+ ~0 q. eset local-reputation 0.5; G) l0 M; J4 E, R
set neighbor-total 0
. J/ O2 Z5 n5 l0 w7 Gset trade-times-total 0
/ c  ~6 ]' u+ a' Hset trade-money-total 08 r) u+ g- B. ]& w6 m: q
set customer nobody
# x2 ?+ a7 M- `1 u" nset credibility-all n-values people [creat-credibility]0 H3 G% B5 s8 T# ]$ z  k& C
set credibility n-values people [-1]
4 C* H' L( {) ]. w) I% kget-color# y& I4 l+ p  C
/ l- S. \" Y9 J0 x9 E/ C! B
end! |/ }8 ~2 t; G

% B- r$ K1 Q. M$ `$ |to-report creat-credibility
* D/ E& W! m& q5 a+ {6 t1 \report n-values people [0.5]6 w1 t: J( x& w. L
end' \5 E" F8 B& n8 D  B2 M; i

; L# C0 o, e5 c" {to setup-plots! R9 ]" W9 ~" W% A7 x6 I
% f1 p) j, y. x
set xmax 30
3 e" Q, Q" r8 B; T1 u6 P
! ?" R9 b3 K/ l3 Y
set ymax 1.0
# X5 }7 B% X8 i
. P# x6 L! E" g  |" ?% n7 Z$ o  Y9 I# P
clear-all-plots

, d1 {5 q( d6 R9 [/ O2 ^$ I# y% }5 L& f. N% B
setup-plot1
% }& d5 f0 _" z8 E
; Q! r7 L# J5 [7 Y2 i8 I( K. o
setup-plot2
; }: V5 P$ j  O% {9 T
4 G- S) y# g# \: Q6 H) b
setup-plot3
/ }/ @" \8 p& e5 m
end
: z& I2 B6 v2 j2 B  M6 W1 l& g; U( S7 H4 l: O' M4 y
;;run time procedures% V4 L9 R+ R4 u6 A8 A! E

6 k5 \- u( D! Zto go
0 x1 ?( B$ x. b5 F2 Y- \$ ^# S- `0 x
ask turtles [do-business]
( v+ d7 \/ @7 c. q/ u& g. W
end6 x" }6 P0 E, ~3 x9 h' R2 M

1 B: j% a+ l. u6 o. mto do-business , {0 B  M0 A$ L" h' e0 y" ?- c
& [: V6 k" S' d% G3 L+ r

" `% R4 {' Q2 R) Z8 L- Urt random 360
; y  C! y  v" {" j1 O
: x) ]8 m' N3 O# k* O( v
fd 1
" ^3 K3 ~: L4 E$ R5 F: R' P4 Z/ G: q
1 h) S+ F7 ?& E8 J: ]0 B, w
ifelse(other turtles-here != nobody)[

, h# [% S$ O. V8 Y0 g7 r2 H0 d5 b' O, q! ?0 G" H7 y
set customer one-of other turtles-here

9 k) g4 Z# k: @5 @* g  U" |# m- J
: W' i  d2 n# B) y;; set [customer] of customer myself
+ m2 q6 @7 L5 k' S! X; F

) F' n* t. V. t8 l- x. vset [trade-record-one] of self item (([who] of customer) - 1)# I, K# D: @  f& ^0 V
[trade-record-all]of self
" M* G2 z( b  h;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

3 }7 T5 [( F: g0 K& P' l- D5 c; c; x4 s9 B! B  g
set [trade-record-one] of customer item (([who] of self) - 1)
  ~$ I4 E. w' i0 S[trade-record-all]of customer

2 n4 H8 [5 a7 r) e! v% S" x5 d$ s9 d- s) Q
set [trade-record-one-len] of self length [trade-record-one] of self
% v, b# e8 R' }- G3 X7 j! G

. ?! q; w( H  N! Kset trade-record-current( list (timer) (random money-upper-limit))
8 p, j0 I) C1 t1 W

. w( @: u9 K: q6 @ask self [do-trust]" N" d4 Y6 Z) `
;;
先求ij的信任度
& j" m: g1 g7 O& ~
' m7 ^. K4 Y4 b) B; R) }if ([trust-ok] of self)) M' c. ?" n7 Y% }2 S$ Q
;;
根据ij的信任度来决定是否与j进行交易[
6 s7 i2 ^- y1 z) hask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
5 o8 w! z- K8 B; d5 _5 z9 d9 I* w* G) t+ L0 J
[

3 j9 o7 S5 H5 v, x/ ~" h: I( [9 u5 R5 L9 x& f6 V
do-trade

& E4 o% L  R! `1 w( U1 M8 E; g$ ~$ D# z, D+ s
update-credibility-ijl
( T8 l6 V! i# s# }5 K% u
5 h- ]7 N& t1 n8 F
update-credibility-list$ k9 c* h4 O; P* c: _! \2 r* ]

: ?+ Q, ^) `7 W) K
& B, z8 R* f1 B' E; g4 s6 J3 Jupdate-global-reputation-list

0 O% B( B- \% V
5 K& i) `3 O& U( |2 H9 I1 e6 lpoll-class
! K3 N$ G. g, G1 j9 v
% w, D4 O* x7 r$ o  G1 j' i
get-color

% T! J2 M! i6 K' ^8 S; e& h
* d  E3 P0 N/ c" ~]]
) v% l* |5 V$ F7 a$ X1 I* ]" _& a. T( O. V8 S" L) J& D
;;
如果所得的信任度满足条件,则进行交易
/ K" a, a- p- {  s- J! h/ O" r, r8 |' h' V. P2 K
[

4 X' f9 s3 ~- @4 Y" C- v
- U+ Y$ y4 {: g& j% i5 krt random 360
6 ]7 _: Q" |! o+ L

4 O; T# R% P, }) L: G$ B, g3 Xfd 1

5 R! P; w, R/ B5 C2 ?9 J
+ S/ a( u( l6 M. N  U/ V# R3 c]
) Z3 f$ k2 s7 n' j+ i( @
4 c, D  F  e+ N9 l$ M
end

& z- \$ `1 {1 y. |' w
0 s% L  F6 @% c& }$ Yto do-trust
1 b' H3 ^' I0 ?set trust-ok False+ ?1 F" D! N9 o& Q+ ^9 |! D$ r
# d. V6 l. C& r1 V: [. K

3 r& E) a- \1 o* v: h, Klet max-trade-times 0- l& y' H$ l9 [' k3 K& I  Z
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 @; S0 E; S" s: Clet max-trade-money 0% Y# U2 f/ {1 f/ w+ t
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]+ R: G& ]$ g6 ]& x' e' t
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- O/ [' |# B. A. B. @" z5 @9 ^

; D& q) p/ ^! z' W" M( d: |

5 ^6 a# `6 m* V/ V: r) wget-global-proportion9 M: N3 C1 V" o. q+ y
let trust-value
! z: ~/ N. V/ K) e0 g- ]- Clocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
9 D9 D3 l# B: B: q7 j' d" x
if(trust-value > trade-trust-value)
0 L( r5 x5 A) h[set trust-ok true]5 }/ t8 |) R9 o* R" x
end
  d5 w  c1 ]: l- q' u& N$ Z2 C' x* f. u4 ?, E( d1 T" p
to get-global-proportion
8 `" K* h  k! p2 Mifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! _9 Q) O  P  F0 p7 h
[set global-proportion 0]
: \3 K$ X/ e: p/ }, w8 }[let i 0
& l1 p. R) Q( u: x$ L0 _( c; q+ flet sum-money 0& K" d9 c/ Q" Y4 z3 h' f. e
while[ i < people]
3 x& {  A$ X6 U2 R[
: G; H1 X6 {8 h9 h# V$ Jif( length (item i
3 ~- \9 r3 |/ v9 `[trade-record-all] of customer) > 3 )

4 Q- Z9 T- e# V+ j. R[7 e0 _* I% [# N1 e
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
; m# V7 x" l1 W6 Z0 N5 D+ v+ O. a) k]$ f0 U5 i& B) U
]3 c# G1 q+ ]5 [  _5 H1 b
let j 0
' u: X, h/ m8 E2 M  qlet note 0
4 Q- [) Q- Y% F7 iwhile[ j < people], A2 ?- o0 s- h) q
[! q. B7 h; U9 `1 y# F9 `5 J
if( length (item i3 [( r8 _; x. k: e' Z
[trade-record-all] of customer) > 3 )

% Z) l' V7 q3 j8 G[- \0 J7 F* m* {3 v: E' c
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
+ X2 W7 I+ }5 b% i0 v[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]% c. Q" x. P( \2 B* [
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
/ q4 p, F" r, E) Q1 p/ v' P0 Q]- g5 Z- l" V2 g+ p9 h# ]
]
* G1 N  g- y5 |6 ?% G5 Q  b' ^set global-proportion note; u1 q6 P- L. q& a( Q# Q$ ~4 p
]- ?; g( [8 i1 u7 X% V' P) e
end
' ^' y& ~, _' m5 B
( h1 t, b" d2 `1 Gto do-trade
  ~, _, H. a  _" s, A- s;;
这个过程实际上是给双方作出评价的过程
" L, V2 r, L, r: G( Cset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价+ q7 S# N0 }9 @3 W
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价1 m1 u+ U& O+ p7 E6 H5 M" `
set trade-record-current lput(timer) trade-record-current
' l8 J- P% ^- y, H/ ~;;
评价时间2 Z7 C3 v4 V8 e( G
ask myself [6 I# K! s4 @# {9 @; k9 Y  T
update-local-reputation, x9 K. E& o9 z, A2 [. Y! E' c+ y7 v! K
set trade-record-current lput([local-reputation] of myself) trade-record-current
( U% _; A7 t( C) k: s, Z7 s: t]2 C0 l4 `$ b  m, }9 G: M
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
' h, _5 Z7 _. h, O% M. b4 v( Q;;
将此次交易的记录加入到trade-record-one
0 G2 G. F" O$ i) S: r: sset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
; \9 _0 @1 v% V; `: g$ `( {2 Llet note (item 2 trade-record-current )
' v2 v" G) ~9 o8 X$ uset trade-record-current0 Z3 t! w. G" p+ O% p$ U& o
(replace-item 2 trade-record-current (item 3 trade-record-current))

2 H+ L( I' S$ u1 dset trade-record-current
# y' O7 M# w  S( `* h# w4 K5 x: B4 K(replace-item 3 trade-record-current note)" d$ u( y2 }; ]

1 x' G5 j9 ?# D+ K2 `0 x  m7 _+ Z# G

1 F" c, N8 o2 Q: J  y0 v5 R. bask customer [$ S* d0 A5 ^& \
update-local-reputation
/ b; v% o9 ^, v7 W) P0 R' N/ r9 Q. oset trade-record-current: R% l) n# k4 o7 _+ e9 i! J7 r8 e
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

7 j3 g# P( f. X]; p7 h8 w2 n3 K
. ~/ T' c0 A$ {5 q! ^
# T) x: I0 _7 Y0 _3 m
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer# K3 g/ `) e  O) T0 n' P, ^

: Z: S: w$ C0 U3 U9 Yset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))6 k7 W. G  z& l, X( F
;;
将此次交易的记录加入到customertrade-record-all& f$ a; c4 C: L1 l) @
end
0 R: {6 J* c0 g( l
$ q8 f* S. n3 b( e$ D) Gto update-local-reputation) T8 U  k2 v9 u* q9 X- q* p
set [trade-record-one-len] of myself length [trade-record-one] of myself
" O. j, A2 u7 g3 G3 `# O4 T% o% z$ E" W. r

- C1 m: V. k4 X$ L;;if [trade-record-one-len] of myself > 3

% T9 Q0 J3 R: j* i$ Q! r+ jupdate-neighbor-total
( Q3 A# |; a5 L0 W+ i  d- J1 i) [;;
更新邻居节点的数目,在此进行
2 m$ x/ ?, P( Olet i 3
, j4 q+ b( j  Alet sum-time 0: x0 ?, A5 D$ A( Y; W' a2 `" m
while[i < [trade-record-one-len] of myself]
/ b" g4 J& e% P$ c, {/ \# f[8 a& h4 F) `6 v+ M5 n
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 {5 ~8 Q. q  R9 R
set i! S# M) R2 ~, q  @1 c; ~
( i + 1)

; I  |& p) ?4 |: x- N* V5 L! G2 Q]
& G( b+ u0 V6 o/ Olet j 3; p; T: E  k3 f7 r8 b
let sum-money 05 Y( g- _0 ^0 U+ {! f' z- H8 i
while[j < [trade-record-one-len] of myself]
* E5 G9 s! B, l! f) j8 o8 W[/ e% ^$ C$ b1 B1 P' 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)
$ j2 R7 N% U0 T8 ^set j
& `9 h# I6 R, w- F( j + 1)

& o) O4 D6 I( r$ q6 b]2 g: |* [7 [  r
let k 3
6 ]6 T! Y" m! p6 \let power 0% \& u# \8 w8 u" U% J+ I
let local 0
& Z! w  _2 R9 g# J5 uwhile [k <[trade-record-one-len] of myself]
9 H. p6 g& t4 A[2 `$ z- d* l" \- N8 S' X
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)
; x! f" @5 I1 w1 tset k (k + 1)9 ~. Q) F( w. v' A' [
]
# g4 S4 o; m: T) [% Q; Z! [set [local-reputation] of myself (local)
0 m& N% [' o3 D7 Oend2 j, y/ q2 m7 [( E8 v# y
$ Q( D+ R+ @* B$ n0 u) _9 p
to update-neighbor-total) L2 U  K- i4 X& g

) \9 |6 W# x- w5 Gif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
1 R6 N  G  S3 A; b2 ?) S) ~- N, E
' X' |$ G6 S- G

# G5 F  R* c0 ]3 _' f, Mend& R4 A3 A/ A! i+ Z
. E. U& ^1 s7 i1 p5 y5 R6 P
to update-credibility-ijl
- ?8 P$ o- ?3 F4 [0 ^/ h3 K% C$ k6 l/ U6 r9 B( G4 W
;;
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 {6 k4 c2 a4 s: N$ c# r: ]: W
let l 0
  k/ W6 H7 h" hwhile[ l < people ]
: {: L" d$ L) Z- g( x8 @( P;;
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
- q* c/ f) }; k- o[
7 ~' ]3 @$ w& M2 |- ^let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
) ]7 H9 x4 y: J+ R# D' a# G" gif (trade-record-one-j-l-len > 3)
* W) e: m- p# |2 v- \) @3 p+ C8 @- r[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-one6 U/ _9 @8 @/ R2 c
let i 3
. G1 L' m( i* c+ V( Jlet sum-time 0, b) v/ R/ e, Y2 W( [+ _
while[i < trade-record-one-len]" t. T0 C% H& s8 U. ]8 F% ]& y
[$ w4 W  l9 {1 ]* G3 B. A
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )# M6 y& g  Z0 C3 B
set i6 W/ t. W; Z# H
( i + 1)

' }+ }% G) Q, H+ D! S6 s]2 E  Y! J' o6 H7 ]. O$ g" S3 r+ u2 C: r
let credibility-i-j-l 0+ h; f  M! J% q! F4 ^. L4 Q
;;i
评价(jjl的评价). r7 Z6 i4 J: g
let j 3
) o& ?7 P& z" p' glet k 4
! A# e3 v0 `9 P2 i6 Q" z! b7 _! jwhile[j < trade-record-one-len]
" ~% z. {3 @6 S[0 U1 C+ M( s  N0 y0 w
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
5 J; p: J% _$ m8 Sset 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)( r% `& C; j3 ]- u( k* z
set j
  h0 C) L1 n) _/ _: b9 T( j + 1)

( U' y* J+ C! ^  O2 Y8 p% j]9 E8 a/ _# d, Q0 @2 ?
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 ))% s* p3 T' o8 z3 |
$ O. j. L4 M3 I9 v: s1 o

# D1 h! c4 V- y8 Z) \let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))9 t% v' P7 a' y3 C& |- ]1 _
;;
及时更新il的评价质量的评价" V1 w( g- D+ ?( r5 n- v
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
. H. |7 k& w& pset l (l + 1)
4 b' s, A# N; Z]( {5 y% y3 n$ i4 y1 A, I; y6 U
end3 v% q% s5 ]) @/ m  j! _

: @1 [  E; A& b, T" Tto update-credibility-list
; U) y8 k* a' T9 K8 `let i 0+ s  I$ c" c8 B3 m. Q/ j* `( E
while[i < people]7 i- ^4 h# R& R' x# u2 P
[+ ^+ U& b  b/ Z
let j 0( ~9 n  ~. p% M5 X) p: x& C
let note 0
7 T6 N8 l! L: ^) @6 Q1 h! a) zlet k 06 |/ k' h/ T$ s! Q* S
;;
计作出过评价的邻居节点的数目
8 t* R, b! u2 N2 t2 Ywhile[j < people]
/ j# [% k$ E# T3 k( l% E[. _' e/ m1 v  W4 A% I+ y4 }
if (item j( [credibility] of turtle (i + 1)) != -1)
: j& z4 a' t( w  v, H1 b;;
判断是否给本turtle的评价质量做出过评价的节点
: B  [2 q% p+ {+ o& X" y[set note (note + item j ([credibility]of turtle (i + 1)))
5 u/ a: U9 a& Q# \" x3 L;;*(exp (-(people - 2)))/(people - 2))]
! J2 J3 t  S3 k9 r& _! d
set k (k + 1)5 e) W$ d, G$ N* i$ i0 v; M: x+ L+ f
]/ o* f" _: V* m5 v2 x* i* ~
set j (j + 1)
' c8 x8 j0 T' ]+ u* e]6 o  p0 H& ]3 O, s0 b
set note (note *(exp (- (1 / k)))/ k)
, \: V( l5 A4 ?; T$ I: G* @set credibility-list (replace-item i credibility-list note)) @! g& }" ~( G$ C) }
set i (i + 1)
5 @+ J2 \7 c8 l% C7 ~( z) |]) H  t5 Z% C7 _# O
end
8 [5 W; z/ ~2 p/ @% A  V% ?& Q+ t! n
: ]' `$ t/ z; `to update-global-reputation-list
% |" a, b5 m3 y' i, h) K% A( z6 r1 nlet j 0
; J- P6 f8 U6 x! p* O% Ywhile[j < people]! Z3 P8 n" f+ T3 e' U! L+ c
[
( p9 D6 _$ x$ E! M' r, X1 Rlet new 0. t- g' [2 z( X# l! ~; w
;;
暂存新的一个全局声誉* Y- t2 `# [  R# u8 g) R- l! i
let i 03 T' l5 w- n) @/ m: ^
let sum-money 0
+ A. D/ X" ~# }# Dlet credibility-money 02 W& x$ ?$ v: }- a$ }! q) O$ e# C. @
while [i < people]6 M* H0 o' B- i. [( E
[
, C7 S6 ?" N9 oset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))# @: F0 Z- c  k
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% [9 r2 d/ t; H2 w. K; a/ P5 a$ u, Lset i (i + 1)
0 a6 Y$ T9 z9 v7 Z# q* K]5 b: V' W' E+ s" [
let k 07 P! Y) [/ [. I5 ~% f0 f+ j) l# W
let new1 0
' J/ D( Y" Y! N" V3 x" Wwhile [k < people]  o" h. O- Z9 U8 V  i
[3 I! Z% [2 l  H# F0 i- J% U9 W1 X* k
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); S# M5 Q! P& |! n/ P) T7 k3 }
set k (k + 1)
# t2 Z5 L- W+ \4 r7 T. N& ]+ R4 I1 t9 _! p]
* F  ~: x! V5 _$ Wset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
" c$ a2 w4 s2 H' T! `+ yset global-reputation-list (replace-item j global-reputation-list new)
+ a& `' Y, P/ Y' N/ Y+ ?set j (j + 1)
- t# U( V/ Q" m1 b2 X& }* {]
0 J$ U- C& @  v3 pend
8 ?! w6 n* s" R/ s3 z4 S2 E! w. J  `) ]( t# k$ e% D+ w8 n) F& y

, }% |/ n! r: q) ?/ x' m$ E6 M# o
+ X! ?# R! o2 l6 Nto get-color/ J. w1 @3 E* K7 y( O- {; G2 C

9 j, F  h* z2 S/ j5 q8 r" d' x/ Lset color blue

) y: q8 k! M. Z: O( h4 e7 kend& d4 A& T2 R4 I$ B& n
# @% J% r8 X( k. H
to poll-class
/ `2 v0 b0 g: W6 a! |end
3 C2 ~$ w/ z7 t: H, D: S$ ^3 u8 j; x7 M5 o
to setup-plot1  A6 S/ N' |6 P

4 m9 b9 a% S8 l& i5 S0 xset-current-plot "Trends-of-Local-reputation"

5 b# Y' L6 W# a  V3 w! T. n( Y! T5 `6 d$ l& ^5 b
set-plot-x-range 0 xmax

- R* J2 |3 C% _5 @2 Z+ z5 W% ~/ W7 [5 b1 W9 r0 c
set-plot-y-range 0.0 ymax
% F0 N- g2 _! b
end' Z0 e- |& }( X9 w
/ @4 C0 T% D4 s; P" ]
to setup-plot29 r" _$ j; ?  ]/ x# Z2 k, O1 t
8 H, f  X- g: v7 G# l9 b2 \" m
set-current-plot "Trends-of-global-reputation"

- r& A$ A0 S  z, `5 A  q4 f# F7 P: a6 V( K/ L, W$ a3 I
set-plot-x-range 0 xmax

/ {- i% K( |# |$ K
1 d8 D  T  e, s; a' Pset-plot-y-range 0.0 ymax

/ z( N6 @  U: }5 {/ @, F- rend8 \2 H' ~0 U% f& o8 g( I9 O
1 ]. X3 ?+ R8 b3 {) L' A. F
to setup-plot30 ]/ S( z8 ]9 c% i$ k6 W7 A

& h% ?5 l. _6 D, \4 w) c5 dset-current-plot "Trends-of-credibility"
$ P- l" O8 o% V2 b8 X

' G7 W4 D5 X# ~7 J* y0 Gset-plot-x-range 0 xmax

: J5 E% R6 \4 B' v0 e0 C+ V  W# C
* c, U7 h  a+ Oset-plot-y-range 0.0 ymax

' ~* T! O5 s# h4 C4 M2 Cend/ n; O6 H1 m$ a$ y+ l, b7 V

! g$ P! ^5 `( M& F- Pto do-plots+ |' A" A4 a: n& c$ [) i
set-current-plot "Trends-of-Local-reputation"4 _. X8 v8 c* i, ]
set-current-plot-pen "Honest service"3 O' n- a% M9 f. I/ f8 W& i5 }
end
. \" M- p) M8 x& k# @2 n% g  P- N
6 z2 S8 c) P8 ]. ^[ 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.: J+ x! }- S9 _+ P4 y/ S

9 D9 |8 O' s7 A7 ?9 @1 m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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