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[交流] 关于turtle的使用问题

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发表于 2008-3-14 16:14:39 | 显示全部楼层 |阅读模式
我将customer设为 turtles-own,初始值赋为-1,为的是当turtle遇到同伴时就将其中的一个turtle认为自己的customer,然后进行交易,如下:
: B* X$ C  K# O+ c. E8 b( Ato do-business
/ k1 a4 R  n8 z5 C3 B) ` rt random 360
, \6 ^& r  H/ Q) x( T fd 1
0 S; i$ s& l: s, J9 D7 t% | ifelse(other turtles-here != nobody)[0 m7 K  E4 N  ~
   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.+ y# V+ S2 B- |5 K! }+ B
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
9 R/ w* X5 G! Y   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer3 p( L, s4 ^( o6 }
   set [trade-record-one-len] of self length [trade-record-one] of self
) i* ]0 [; h+ S' C   set trade-record-current( list (timer) (random money-upper-limit))
3 W+ b. Q/ N2 K  V; t) o. ~+ P3 O; r/ S5 `
问题的提示如下:
3 I4 \* _1 f- W% \- D2 r6 _/ r9 N) }
error while turtle 50 running OF in procedure DO-BUSINESS
2 H+ l6 r8 A6 _/ @5 n; {+ G  called by procedure GO! ?- y7 C* Y# f" R
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
! T' I( h" E# p! @& O4 y7 m
(halted running of go)
6 z. n& u' L8 C2 _! q1 ~+ x% [0 S* A# A
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~~
( R, i5 W5 C& x" ?, K1 y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
  X% P) ?0 |- Q8 D2 z( Zglobals[  f) x$ N6 {( t) ~
xmax
# a: ]$ X1 B: h7 ~/ fymax- F4 ?  N9 z6 q5 |
global-reputation-list, I* B6 f4 g' k
  B4 V2 {3 w; K
;;
每一个turtle的全局声誉都存在此LIST
& w( u3 x% }+ Vcredibility-list
* s. d# j& u& C;;
每一个turtle的评价可信度3 H  M) @" T7 Z: b* t' m
honest-service
5 }( }3 t7 N7 e% S+ r1 S, U, ?unhonest-service" r# |% s1 P- }- K% m3 G
oscillation5 }4 G& e  a5 [) E. ]
rand-dynamic
: }/ _) Y# V/ ?; r% r3 H& a], T& h& j7 ]& P: L
+ a$ Q! r" ?$ n7 w2 T5 s) |( F
turtles-own[  @7 o! z0 [1 d* }5 V
trade-record-all# c* x9 ~4 k$ f8 D4 s& ?
;;a list of lists,
trade-record-one组成
$ Q( T2 l; x# t% |trade-record-one
, ^" \& w4 P+ G;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
& q" O  K  K% O7 r8 T0 H& N: m9 y$ `( E! _% L# |+ l
;;[
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]]
* D; N4 a& \5 C" \$ ptrade-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+ J0 t* z& v+ B( k6 y* Q/ f
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% y3 L: y0 R7 H" W
neighbor-total: t0 s  z9 z1 B1 d
;;
记录该turtle的邻居节点的数目# K# E0 K) I( R6 C
trade-time
  n# V( z. f. Q( ?& u2 n;;
当前发生交易的turtle的交易时间0 `1 r+ a2 m$ }- E; {6 d
appraise-give. {- D$ y; |1 k$ T, g
;;
当前发生交易时给出的评价2 ^" A) C4 o: ^' R" }9 z; d
appraise-receive: _( t4 ^2 D; r% F+ f0 X: c
;;
当前发生交易时收到的评价( d: l' U( o' G: ?6 k4 ]
appraise-time
1 X" w6 k/ n$ v& ]8 ^4 G5 p;;
当前发生交易时的评价时间3 e! g& I4 K* T1 e: Y" S
local-reputation-now;;此次交易后相对于对方turtle的局部声誉9 i3 M: g$ x1 n# y3 p$ c. e6 ~3 X
trade-times-total' _! M- K7 G; d; I2 U: X
;;
与当前turtle的交易总次数
+ S3 Q, c, a0 U, btrade-money-total
) S, N, K8 i) {/ F7 F8 w: M;;
与当前turtle的交易总金额
- y9 `8 b1 ~+ J0 ~! J5 V. t  wlocal-reputation
% ]! P. s$ m& P2 Aglobal-reputation* g" a( M9 f/ l+ @
credibility
) n' I) \4 A) z) N' @6 X: N+ J! M;;
评价可信度,每次交易后都需要更新8 c; c2 b* \0 q6 ^  L$ w
credibility-all
) n& H% A% u0 C$ I& j  s+ q;;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  e  N1 C+ u2 N" \6 q7 L3 `/ [
7 s1 @1 z% M5 x* x, t: 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
) R$ @; o' R* k8 w  Gcredibility-one* [: m; q7 r4 ]" }/ d5 J
;;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+ y" R; b- H$ T
global-proportion' n* `& @; o7 [5 d9 {& x1 l
customer
0 T1 u- m: O0 R, U! m. `+ H* y7 b+ Gcustomer-no
' m: |5 T+ a, _" c" k) @1 Ytrust-ok. v- L8 y& C# @: Y- F& C& K7 `" i4 Q
trade-record-one-len;;trade-record-one的长度
7 z1 {* T$ X3 a! N/ Q9 l]5 T5 p; l; e8 P) `" L" C" y. u
6 F2 |0 h6 V4 p2 j
;;setup procedure( t/ z2 U; |! B0 s( T/ l7 K2 n
* I: O& M  f$ C0 P. N
to setup2 _; w: M" j2 F( J3 E4 R4 K) K

+ t8 r- `5 ?6 |. ^0 J, Cca
3 c) r9 h! S* b
; q  N2 W5 i! Q0 O2 ~
initialize-settings

1 y5 }. o& E: m, _8 z+ F, s2 C1 g: F" m% o
crt people [setup-turtles]
8 D% |1 K0 s- N- Q

) G( k% \9 X- y  }# yreset-timer

$ E& s, q- a) _0 G& z. [" P; E! ?& e' z8 y
poll-class

2 c- F2 `7 X4 f" ]* [4 s3 g1 V( e6 t( {- ~+ ^8 N" o3 o4 s
setup-plots
, W% l- H2 }: ?! S+ T% E+ j, v) v

- ?) g+ j. C! \+ ~* wdo-plots

, \7 R" Q, f! i0 T" m# k; {6 F9 wend
( `' n" A+ G7 O/ T5 m6 A  i1 V6 x; M$ o/ B" {  l% z3 |
to initialize-settings. e4 @/ u) Y( B8 m; r4 \9 _

. E( s9 F2 \! D% q9 nset global-reputation-list []

: f! k6 b  |$ f, ]$ p, X
/ E5 C# S2 u  q& o3 aset credibility-list n-values people [0.5]
0 m" n& R; ?0 P! Q$ k+ h

' q8 ~/ o+ F5 c& \set honest-service 0

( r6 w$ Z2 I0 N/ A9 ~: m5 u4 g
4 X% i6 v' n  J8 {set unhonest-service 0

* A, s9 O/ p, W3 w% t0 S3 P7 _+ B) U& x7 M- A8 z3 e
set oscillation 0

+ T9 R5 d. j2 K. ?3 J: Q; }3 s7 |: }) }, o" L4 Q) e) G& x
set rand-dynamic 0

0 s! Z, l' c, _* E; R0 `) D  ?end( S' s, o& l! d7 I! b
6 I# B) `; ?; \# [7 k
to setup-turtles
" Z+ \1 M! {: {# Q# e3 B/ N+ K) dset shape "person"  M, _1 n5 [) ^
setxy random-xcor random-ycor
( j# r; w+ L! F3 Vset trade-record-one []5 n, C+ l* B7 T, ?5 x3 f3 e- P
, y3 @! y& I! J9 L! w1 [" L$ ?
set trade-record-all n-values people [(list (? + 1) 0 0)]
- ^4 D2 e8 a# @6 w4 }- d
3 A! u1 u7 I3 t4 ]% Y
set trade-record-current []
! M  e. [4 [9 j; d5 A5 H/ eset credibility-receive []- y3 C8 n+ q" t# x9 s/ c
set local-reputation 0.5
# |% P) R+ I% vset neighbor-total 0( I4 y# z3 f- W
set trade-times-total 0; j* k7 h' w( Y( |
set trade-money-total 06 ~( a4 @5 P; }# L3 f
set customer nobody
5 Z; u; F4 s* [set credibility-all n-values people [creat-credibility]
$ @* v7 n2 T2 z% \( Nset credibility n-values people [-1]4 E4 G+ Q% E# @& p
get-color1 A8 Q6 N* V% ]

9 b! S+ b3 w4 }( v  I8 _) J8 N; `end
3 b3 ?0 ]6 o) ]/ f9 Q& ]0 V
: ~2 s. Z' Z! h2 ~( g3 ^' l0 P( Jto-report creat-credibility
  x' s# |' v! b. u! n2 l7 xreport n-values people [0.5]9 K0 l8 O2 b+ M6 [! G1 m' T1 V- F
end
7 t" a: c& L# S+ x; v0 o: z7 K8 }0 p6 x& I
to setup-plots  u- d. F' V$ Z: ?

; r" D' A  t! t, U( J+ K1 X) vset xmax 30
* C. t3 B' v4 A2 v# _' ^/ X; v

# h" G' r, ~# v0 H9 L/ W1 eset ymax 1.0

0 d" b3 x2 h' K7 L8 s5 S% b$ E6 @4 I9 l4 i
clear-all-plots
* x; `* R+ I- u3 ?  @9 m" }

" m! E- v$ l' \5 ?+ s: w( nsetup-plot1

: }5 S  E5 C; d: |+ R
' i! R2 a# f, h) X! ssetup-plot2
' B$ |( I! p7 x

7 G3 D+ {, |# ~  [1 N/ W+ |( q8 Dsetup-plot3

- z4 J* v. M2 E' aend
' ~$ b2 m/ Q( N7 {
4 F% t& O3 W- K' n;;run time procedures
, ^+ i. K  n! L) n9 ]! H) n
. v6 c, A0 [0 q( Pto go/ Z& l0 y) @* k) D" m

$ x! c! a# T# ], v' [8 Mask turtles [do-business]

& o: m" Q) S/ [# c7 b$ c0 nend- \; Y# n1 t2 O' @6 p# {9 ]

$ S+ }/ ]- ?' o8 c! |$ Jto do-business
+ ], u% f# e( l& T( ~- V+ I
3 `$ j' ]: }2 E" f' P, I" q
8 I5 T6 S2 U# a4 @, f
rt random 360
  B7 s  f( R0 B* g+ K
$ t( D7 P. O8 q$ v
fd 1

: B; p2 l& T8 o3 l& Q
! b4 e2 G- {3 @, m$ Z9 B0 zifelse(other turtles-here != nobody)[

/ o5 U4 s" C3 T, H" K' K' I, q2 u" l: b* M+ x: S* l
set customer one-of other turtles-here

! V0 k; l* I7 y2 e
& e6 p$ o" k5 t;; set [customer] of customer myself
# Q: Q4 T+ v' B: ~1 W6 u" g, S

& {$ `% y& m$ \1 d: J7 [set [trade-record-one] of self item (([who] of customer) - 1)
" @' u) W8 o% _; c+ p+ B' D2 |[trade-record-all]of self
; H- \8 f7 T: g7 f3 Q;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
2 G% r- Q+ S6 s1 h* K3 j! V" S: z
; u) t0 L" h2 V" {' ]+ m" ^1 B2 g
set [trade-record-one] of customer item (([who] of self) - 1)
- B6 C7 U8 o9 m4 G0 y( y[trade-record-all]of customer

& S) q; ^& |* r8 p3 e$ s$ |, P# L$ W
; ^+ Q+ o7 i1 y& D- Pset [trade-record-one-len] of self length [trade-record-one] of self

4 V9 |2 `. R- c3 q' u: \& @  F- v: m/ Q
set trade-record-current( list (timer) (random money-upper-limit))

  P( }1 }9 G; w8 m: U5 x' r
$ m1 z3 m; A) R6 s) |7 h$ ]5 \ask self [do-trust], P% h! q- C" @/ C) u
;;
先求ij的信任度& T3 h; ^6 M, M3 n1 D

- {! n2 u4 {9 Dif ([trust-ok] of self)+ `5 I+ ~8 [: {1 k+ [: ]
;;
根据ij的信任度来决定是否与j进行交易[
  U  j8 R2 c) D, L( q9 X  fask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself. ^) f6 H& f6 J- L6 f2 X3 ^
& }; o( v" o6 t5 {& t' s6 @
[
: t& G: p- w0 I) C' C
( U* y) C% ^9 h1 |' J
do-trade
! {3 X. l  N+ c  R" y! E* T# f+ J, Z

" V- |5 J4 h6 x* Bupdate-credibility-ijl
* x* G3 p: U/ U& E* q( m/ G& Y, I- ^+ S* v- f

/ I+ l; p- e$ q: S# Hupdate-credibility-list) X! O/ F, ^  q# ?
$ J7 k/ p+ u9 L& V- Z. }! H
3 X$ o6 \. b2 p9 m  k
update-global-reputation-list

4 @7 y: R; J3 O+ R( p
6 q" c( h2 o. ~" y3 }9 Ypoll-class
  E" Y4 ^  M3 Z; C. Y8 J

) c8 Y* j  A- k* x! e  J2 gget-color
6 T2 v! Q8 F$ l2 h5 r  A9 O
3 @6 b# d) h$ L  {. g( {% d
]]
1 ?5 n) U' x( N7 p5 ^; Z) r+ J9 F. T5 D5 V/ A
;;
如果所得的信任度满足条件,则进行交易
0 Q- G) C& Y' |; A% J1 |
2 L; Z) a  y( H7 d+ N! J3 a[

- l) k- Y8 f$ @0 w% ?2 [5 k( O+ c; `: a* d( p( ~" I
rt random 360
* B6 @+ h, j, ]2 |6 ?8 b

! H0 n3 M5 f& Z+ w' v+ U2 [fd 1
' T! |# [, f# U* @& \
# ^2 Z! o. r9 E! w3 i5 m" g' H
]
# o4 s3 O* J) X; Z5 \* p$ @
7 k' }( s& O7 v
end

, p3 h  z) q, w8 y4 b! F7 g$ G% k: v2 v
to do-trust * z' f9 M3 n6 d; `4 g" o
set trust-ok False
: h& j" ]0 W" }" w+ d
8 @6 j$ W4 Y! H  N
0 k5 _" B; ?9 _0 c
let max-trade-times 0. G) F; t/ V7 A" {! J, I8 h  K2 f
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
9 N% Q" @( M0 W& b' Vlet max-trade-money 0
1 x! D9 `! a: ]; Tforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]( l" h. L3 J  F/ ]5 x
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
  X, i3 R; e; e/ ?: P
% f, J7 H$ _% E: }4 n

2 h3 Z' z9 k3 C  c& e, U5 yget-global-proportion; x( a3 X1 F1 Z" ?8 B
let trust-value
% q' T# B: k  q8 olocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
% M, d/ r  k" o) m* U8 Z9 R. r
if(trust-value > trade-trust-value)0 G3 H5 j/ [, P( k4 F: A
[set trust-ok true]
2 O  w( E' k, w, a3 w" Q( K8 v, |end* z6 G* p: }, w8 F5 O4 k) ]

# ?2 n  {; b! `+ x2 g7 `to get-global-proportion) v) X4 B# o; H/ l! B
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
2 s3 S6 q$ N' h  ~* [[set global-proportion 0]
1 x' ?8 p6 w* P! }7 H% E* Y$ S7 b9 U( y[let i 0
7 @5 C5 y# G% U( ?let sum-money 08 E* p( e4 j2 k( D
while[ i < people]
% o/ Q* ^* [  Y: a- G. o[1 V2 B' `: b# l: g( b* P
if( length (item i
( ?9 ^4 N/ ?, ^[trade-record-all] of customer) > 3 )

' k7 l: L- m$ W" H6 S& e% ]3 T[: l% U1 ?5 O- W; N* M
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))) ]' r) |( a, T7 ?6 I, J, N$ y
]
) y5 y9 y7 U3 {7 E6 N; g]( ~2 |( O' M6 T; E) Z- T0 s9 u
let j 0- d) C- W' P3 _  [
let note 0, S, [/ _; @4 M
while[ j < people]
# [8 ^/ X# Z- K[& |( m) y3 q0 T" R8 B9 d2 x
if( length (item i) o* V" \$ ~+ q
[trade-record-all] of customer) > 3 )

; Y3 ^& Z+ q, E* r- U$ Z- {[3 U! l8 s2 H3 q9 E
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)3 i3 I0 b/ {+ A9 L( g, @( W
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]9 [0 Z9 h& t- r" H; `
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
9 @3 n) {3 _( s4 I]
0 Q8 t% f- O$ \) G]; @- `: v. O/ e! z
set global-proportion note8 e% w5 j6 c' }  O
]8 }& N6 F% c7 ]3 f# y0 l8 f5 r5 o
end
1 J( l3 R  i2 F. a: d
2 v$ D: ]; R9 ^# u& N: {2 m) f# u2 Oto do-trade
3 i' J3 i8 B" n! `" ^;;
这个过程实际上是给双方作出评价的过程
5 H! H" e: o) L3 C5 a; Y; {6 jset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
# Y& k) p3 ]4 _  J7 ^6 Q2 P( j; Cset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
+ J: s/ l5 Y, o8 gset trade-record-current lput(timer) trade-record-current! o. _, X5 C+ H
;;
评价时间
5 E9 z( J# ?8 kask myself [
9 `+ y+ J- L$ }0 H( Yupdate-local-reputation
! Z6 u, F7 ]. c0 n( D( b& a+ c2 lset trade-record-current lput([local-reputation] of myself) trade-record-current9 S3 q5 O8 h+ {* W1 {9 ?
]  ?0 w3 c$ D) T5 v  R' y% r$ l! j0 d! k
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
" |( A  ~5 F& e1 z;;
将此次交易的记录加入到trade-record-one
- A3 \) g8 o2 j( r: @! _set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)" p9 r# K& a& e8 N: i" L
let note (item 2 trade-record-current )
  S1 R9 ^$ x0 w/ rset trade-record-current
! X' s# s  G# n(replace-item 2 trade-record-current (item 3 trade-record-current))
& u  A& q. A6 d/ i  f4 E3 W
set trade-record-current- X/ n. H2 d/ Y8 n1 p) e
(replace-item 3 trade-record-current note)
! ?: d; N$ e- |- U9 P  k  F: R& c! [* S1 Z% ~" k
3 u# H. m" w, ?3 q- O1 b; B9 \+ ?
ask customer [& J3 v1 B9 I( q: ]# r& E! |
update-local-reputation
9 z+ ~" R3 V8 R5 ~* Y2 O+ C1 Iset trade-record-current
, [$ q& a0 ?$ k: j. U& h(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
+ C. v! \, \. W7 A! {
]) p* P- t" w4 d% z0 P% Y

0 K. ]5 G) ~( G" a, i3 O
# n! h: @% [' [) B$ H1 _, [
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
, b' r4 g$ W7 ?! k8 B# P: ?

7 ^  N0 T2 t, u7 b% M0 M2 c# L  fset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
* d* o+ o: j7 U;;
将此次交易的记录加入到customertrade-record-all
! g6 |1 ]# W% g8 D, \6 uend
; M. u9 w1 b- h) s
( o# Q  X+ N  K  ~0 k4 j( i8 m8 [5 mto update-local-reputation
) N: k( x/ y8 J9 O* ?8 Dset [trade-record-one-len] of myself length [trade-record-one] of myself
# c4 l. |, W; R& C# }! w
( g0 v  v- h7 G' K5 e9 H3 f
) B/ k$ T* K9 L  j( [;;if [trade-record-one-len] of myself > 3
* L  Q& t5 e% O& S( L7 ^' o
update-neighbor-total8 P; T; q3 X" E+ C
;;
更新邻居节点的数目,在此进行. [3 T# K9 h+ J+ E
let i 3
5 R  L( Y+ ?" C9 `5 U# B2 klet sum-time 00 u% c& \+ _7 M7 r+ s. H% l8 w3 A9 Z( N
while[i < [trade-record-one-len] of myself]# N, V3 D6 U; W( m- ]( {
[, w0 _  {. A; s4 I6 u; ]
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )9 o; P0 Y1 _4 `
set i
& q9 o0 p" a$ O# O( i + 1)
7 `7 k' p, c1 v* M3 x
]3 G# T% B, _0 }- ?' j* m$ Q
let j 3
% \) H. P2 w4 q& m* W4 a5 _  Mlet sum-money 00 R. `. ?" l% o, t& r6 b4 P& s
while[j < [trade-record-one-len] of myself]
3 F3 I4 i8 W5 Q) Z" ][
- _# E& {3 P- f8 G3 ?8 g7 r1 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)7 i* H& V  [/ O1 E
set j5 S% K, s6 S5 f0 ]' [- C7 ~
( j + 1)
6 @. ]# t# e0 G' H
]5 U/ s, `" M3 V( ~; K$ W
let k 3
8 {1 j6 Y2 |5 ^6 h+ b5 C3 olet power 0! n1 d9 _0 y0 Q' W, G- Q' O
let local 0/ T( [$ P% N# s. a7 v- Y: n
while [k <[trade-record-one-len] of myself]
& }* y6 Q7 l1 l8 b+ n7 Q7 @[1 i! h8 u" ]* V' i- _3 t: [, R* 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) 5 _2 W  ~+ {& L$ D0 p
set k (k + 1)$ w9 _& H3 S& Y( Z7 T
]
& o% U4 `* U) Xset [local-reputation] of myself (local)! X1 U7 ~  N% b. ?3 B
end
; T9 j  ?4 \0 m
' Q# @* x8 p; h+ j; Q& [to update-neighbor-total, G& ^  q& J' q

- {; u; M% o. ^; ~8 G# {2 S* yif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]( k$ f* ?+ n0 \/ Z3 V

7 e3 p( |' I4 K1 U; H4 h& x. t
% i5 M% |" E. D! s  l- M, S3 F: ]
end# o9 o3 m+ u! t% B
, X; D8 N, z( ^' t& g
to update-credibility-ijl
; w7 t' m! ]; M2 `, A% Q( y  N1 _. a+ O! a- c& ]7 F: ]- d) G2 T! U1 e- q
;;
思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。9 @2 D7 G& a( ^( h
let l 02 f: K  b  U4 h, G; ^
while[ l < people ]
3 x- t* [; A( d9 V! x: y. m, y( T;;
j的邻居节点的trade-record进行扫描,以对j的邻居节点的评价质量进行评价* R/ L" x9 _/ B/ d( s
[
, t1 l5 w# q  F/ l, Ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
$ _' _' B3 p! w: B* B8 v. [if (trade-record-one-j-l-len > 3)
, {. @& u  \& x( y[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- I9 K  b: b) e; v/ \9 a
let i 3: ]5 i8 s, l! B3 _3 x0 {1 S
let sum-time 0
/ h  ~; j+ V% y+ s; W6 Owhile[i < trade-record-one-len]3 v+ V3 m2 ?% Y4 f5 z& t, i4 D
[9 ?- f, }8 n- v+ m! @& W
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
1 ]+ a& ^7 Y& M4 ?# Kset i
# F! ^/ ^* c8 S- B( a7 ]$ P( i + 1)

$ v' V- J/ ?6 i6 h  k; B/ z  o]
- G9 h, X) y5 o+ d" s& K6 {' t& ~# Y6 Ulet credibility-i-j-l 0
  o. W. \7 h& G, g;;i
评价(jjl的评价)
% m$ f. B5 v6 }* t9 ?let j 3& h# N, Y( R* P2 F- v
let k 4
3 i6 `) z$ V0 {: xwhile[j < trade-record-one-len]
8 `5 P/ E0 G# M5 O* W2 {[" i7 @, i7 @: G2 a6 H, _
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& q, F3 x, a/ t2 `7 F. Y
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)
9 s* K( G, U: s& y5 a0 Gset j
0 S. F  A4 P; L5 V8 N8 ?( j + 1)
2 h/ @( e: R# V, c! `8 X. j
]
( b! @9 C1 J0 n1 \9 v" v! rset [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 ))
- b8 ~5 L$ q4 s/ X  i6 O" O$ h3 L7 M3 |8 V) v7 Q  s
5 q" l. i  W# S! v# {1 ^; R
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))5 U3 Y5 _; l5 w& a/ d% K" L* y
;;
及时更新il的评价质量的评价. N5 s5 g9 E  {* e( x3 J
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]' W4 ^3 {- f6 }
set l (l + 1)
! V% s+ {  m* j! _/ U]
0 R0 t6 _7 S8 p# x3 I* Send/ }7 ]' c2 Q' ]* V
! b3 M: h  P' J/ k
to update-credibility-list
8 P- M6 ?1 x+ X9 B" n2 F: L$ ylet i 0/ \* O6 F" w* M0 J' e, {
while[i < people]
% y+ [! j9 ?( J0 V[# D. B7 u9 f( I7 O5 F
let j 0. ]$ G: c5 F2 A% Q8 _$ d- [
let note 0
3 }, z/ I- `  X+ V) k" \& Llet k 0
- o7 S3 p" ]: m* M" {4 O;;
计作出过评价的邻居节点的数目$ A3 b6 |5 e8 S0 R3 A5 v
while[j < people]; j4 B3 p/ R( F, J$ h3 U& D
[& n0 G. h2 l4 l5 N) N- Y' n+ j
if (item j( [credibility] of turtle (i + 1)) != -1)& Z+ P0 D# k0 N* C" M4 f
;;
判断是否给本turtle的评价质量做出过评价的节点
9 }3 H6 [& H9 H5 L: \8 B8 a* o[set note (note + item j ([credibility]of turtle (i + 1)))  M( N5 }% l+ @& ^9 D& r, `
;;*(exp (-(people - 2)))/(people - 2))]
2 d. n5 g2 O4 ^# n
set k (k + 1)
$ [: s3 ~3 p0 v1 k" []
+ A3 y9 x' K( F& Xset j (j + 1)( k' K& X+ Y( `' \7 q0 f- q0 F5 X
]
# \' f8 u, S; B& W# p4 V8 f$ H) [, fset note (note *(exp (- (1 / k)))/ k)" y- {* S9 F3 l' k' t+ U
set credibility-list (replace-item i credibility-list note)
8 f) q7 M% w3 }set i (i + 1)
/ B3 d: C- S) `7 G8 |]+ M, u* |4 r2 t! ?. X/ g
end: [6 h# _6 {8 r2 `) t
5 }& o9 o: J+ [2 W' q* x% A
to update-global-reputation-list
$ O  g: K0 {: i1 t* Wlet j 00 l3 h2 h5 l& i! Z
while[j < people]& V+ g4 _$ {' y. t. L) c& z
[
9 x( R2 C- l0 R4 L( ~let new 0
$ I% b. G+ Y: Q$ {6 J: p;;
暂存新的一个全局声誉
1 O, z+ v' t/ I1 Olet i 0& M5 P7 ~/ [5 l2 Y
let sum-money 02 b6 ]8 K& U' F1 C+ V9 ^( `, L
let credibility-money 09 A" u* n% M* T$ ]4 S3 j% P. b
while [i < people]
6 E$ m' A2 G" G) v9 F[% P1 |( R9 n1 t. R. S" r! b
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))  {: ~  z8 w& R: X+ K
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
, r* g0 l. R9 d* Tset i (i + 1)$ X7 l" j% I/ f. h
]
% z* G* \3 F; O2 q0 L- H: Q& nlet k 0
. Y0 q8 F1 Y' n5 m4 W/ Q: dlet new1 0# z2 d( E% p3 Q# Y* V9 V
while [k < people]; d  H: z; ], x+ r+ J
[
, ^) N5 r0 s" ~$ U/ Bset 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)1 q5 d" E2 f7 l1 L% V
set k (k + 1)2 M+ X* B# m9 e5 h, y  a* Y7 p
]
' ]3 F. `4 v% }0 T; C: jset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
0 T% J  }% I' |6 jset global-reputation-list (replace-item j global-reputation-list new)0 t3 J6 G# P# Y# _
set j (j + 1)  L) C8 C) R3 [9 J8 w# W! E# T
]  x3 n% O) L- Q$ L) u/ q6 c  |3 C: n
end5 U! N+ r) w& @  T& }9 T" J8 m- R
, M) l/ n4 {! T* d

, G9 p9 C6 B: E5 f% e$ V9 z5 J0 k8 x# V1 s8 \
to get-color
' P- S: C) _! }# }8 _& W9 G
# _( w" B; @) B+ e- Qset color blue
1 C4 v' I# B+ n) H- B
end+ z- {' m9 k2 a

  V) p3 s% o' B- C, K# q5 qto poll-class5 E; t6 l" F6 Z
end& v9 D# D9 k3 w

, o+ z5 i. z) v( I  E% `" Sto setup-plot1
' Q  H* P! G% t! ?. U0 ~% O( I6 Z4 x4 ^
set-current-plot "Trends-of-Local-reputation"
5 N6 R2 n. G5 I# O- |9 V. h

( B, r  D, j, u: v* b0 jset-plot-x-range 0 xmax

$ H! r; D  ~& ~+ c
$ v2 h6 m& E3 R9 C0 Z. w5 Lset-plot-y-range 0.0 ymax

- E# B$ A( e/ _" q! A$ Tend1 H% ^; L8 R2 q6 ]) h+ q0 K

: {* g3 r# m- x% J5 |, k: d+ m# zto setup-plot2
: @/ J6 J4 L  w& t" v/ y6 |+ s' {
0 F' u* I# L5 P6 t+ Gset-current-plot "Trends-of-global-reputation"
' h6 ]$ L" K  e7 d# U7 W5 v* {7 ]
9 N5 p8 b! j4 i7 }6 [, J
set-plot-x-range 0 xmax
; R* }4 o/ E/ D: j! ]( y* x2 Q6 [9 k
' i* [. L2 {# \$ }# C3 ]
set-plot-y-range 0.0 ymax

8 |( C5 J, u4 _* l7 g3 N/ G' F/ Send
" P! J' \5 s0 s" l! M* P: G% f  J# V( ^# Y7 a8 z9 M* m7 ~
to setup-plot3
$ Y0 i* \& E8 J. x' S5 R) w* @) x; [8 ?6 Q2 K  M
set-current-plot "Trends-of-credibility"
) C3 e: U. l, o8 C! e7 b1 u
% o) }1 [( [* D. O' A
set-plot-x-range 0 xmax
# |4 J0 K+ Z+ A

7 e" g  Z' i5 [, G! @6 D, `: nset-plot-y-range 0.0 ymax

' P, F: i- G6 {7 Vend
7 i2 r6 K+ s: K, F- V
# b* ?: J( @/ V% G" {to do-plots
6 T1 h9 k- c" Mset-current-plot "Trends-of-Local-reputation"
- s8 D, Q  X3 Hset-current-plot-pen "Honest service", [% C4 w( W4 z
end
9 e2 q3 J& @6 _/ e, _+ A2 @1 `+ H+ H3 E' x2 Z7 {6 p
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ]

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发表于 2008-3-19 11:33:07 | 显示全部楼层

有点困难

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

还有啊

发表于 2008-3-19 11:35:59 | 显示全部楼层

还有啊

能不能传nlogo附件上来,一个一个敲太累了,好长的程序啊。
 楼主| 发表于 2008-3-19 12:47:57 | 显示全部楼层
嘻嘻,不好意思啊,现在把附件加上了.# @- i% y3 k0 R3 J1 H; p1 ~
6 A# I4 {4 L% p6 v9 [
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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