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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:! O0 |* ~1 ^, N, m' P9 _
to do-business 0 _$ X: F4 I6 s+ P) `
rt random 360( J$ |6 Q/ }% k9 `
fd 1. c+ h) r% ?# G# f, ~* D/ t
ifelse(other turtles-here != nobody)[0 J- |" R4 s' Z' i7 y0 `
   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.* q. ?: B+ `- R
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    : O  E4 i" W, Q, l
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer+ d* W0 E3 t7 ^' ^" I# ~
   set [trade-record-one-len] of self length [trade-record-one] of self* ^  H0 }) ]. A# X. \, B
   set trade-record-current( list (timer) (random money-upper-limit))
, G' l$ _+ D" s  _% P0 g% q  R; j0 ~( G, D" K) f, H
问题的提示如下:) S) v3 v- M: j5 r4 U
9 S  V' R  P; n* ]  w) R0 {; p
error while turtle 50 running OF in procedure DO-BUSINESS5 f, W* f, U* w
  called by procedure GO$ D5 ]1 s. l7 w. ~& d" [% f
OF expected input to be a turtle agentset or turtle but got NOBODY instead.& l% O" w/ q# P+ [6 q
(halted running of go)3 J" O+ E6 v" M. @1 t, z5 l

$ j% D& r2 v2 j4 s# R: X& X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~~
1 N# _  G. z  f3 C% ~* O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
7 P7 G8 m4 |8 |8 yglobals[) o6 ?; G7 K3 I; i
xmax
, [  T4 T- ?  c: F* N. U% iymax
# t1 K/ n% n5 mglobal-reputation-list3 |! {. t# \/ Y/ T$ z

7 M7 q' v) y+ j: g& ^;;
每一个turtle的全局声誉都存在此LIST
, y) X" A+ ~! qcredibility-list3 t" T; ~5 L' {* J" e. [7 I
;;
每一个turtle的评价可信度
* c- _+ v' R& k. S, s% Lhonest-service
1 |' m4 e7 e2 `* a- M/ ?; W! q6 Wunhonest-service
* t" C2 t( A, h+ j/ Ooscillation8 \( K, m, }+ e" K0 L
rand-dynamic
9 v% c$ X$ y7 [5 h]+ G, Q5 q* a) C. R

" J* {1 a1 v4 @turtles-own[
) c9 _9 M9 A# G1 i/ ltrade-record-all) T3 Q, l3 N* R( |, x3 Y: U1 M& s, G
;;a list of lists,
trade-record-one组成1 y1 k5 k0 U" G9 l
trade-record-one/ }4 ]! t  A7 D$ u, p* v
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
* p4 I1 F! N7 L6 y) f5 F4 ]% Y# Z/ P# [! v1 ~3 j5 \6 B
;;[
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]]" r5 ?/ l0 Z9 \# J* 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]
; l; [. p! z2 Z  v, Ycredibility-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
/ g) _" w% I4 R. n7 E7 Zneighbor-total9 v. y* V( K0 b, p
;;
记录该turtle的邻居节点的数目; h7 s% S6 m) d4 u4 Z" R
trade-time
0 d+ J) w+ u2 x& }+ E;;
当前发生交易的turtle的交易时间9 P: O( d# t$ b
appraise-give3 ~7 F% d! F6 P8 X- ^) X  q1 U
;;
当前发生交易时给出的评价
* \0 j3 `# _- G' [( {appraise-receive* E! a7 T' L, A
;;
当前发生交易时收到的评价
) i' C( |/ d$ l+ w+ aappraise-time
' }+ ?' k' }9 _, Q) g' B;;
当前发生交易时的评价时间
/ x! w: o, i" o6 b& z& {local-reputation-now;;此次交易后相对于对方turtle的局部声誉
; C) |! \, c. U+ Strade-times-total! N* w* f& Z1 }- C
;;
与当前turtle的交易总次数
9 z1 B+ ?) }7 H; x2 ytrade-money-total! @. w4 D: @9 Q
;;
与当前turtle的交易总金额" }8 A+ M" _* ~4 t7 g7 ]/ U
local-reputation
1 Y0 p2 T4 l/ x; {2 L5 E6 Aglobal-reputation
! g* H( Z  ]' G) \: ]% V3 Scredibility7 G" J7 l" H. v$ t) {+ U, _
;;
评价可信度,每次交易后都需要更新
! ~9 }+ w! x5 b- H6 P5 Q; t2 Ocredibility-all: A* e. ^7 c$ l7 y+ G  t( `3 Z
;;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
! s0 F3 b7 s+ r" p0 _
2 w4 N) }( ?8 y/ _5 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
/ T: b8 g7 `0 ^# Scredibility-one0 }# @  {; H! v) p8 Q1 N
;;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
9 k' T; D& `" p: Q; `. z: @1 oglobal-proportion
  b0 {8 y# X6 u. E9 U* u$ n8 s8 \# \customer( `+ X" P) n2 [9 b  t% d) W
customer-no
4 B/ F* R* c* O; G$ H% jtrust-ok; z2 A) ~1 ]# d4 Y8 Q: t) \5 [( b
trade-record-one-len;;trade-record-one的长度7 m: f8 o. |! x( O6 v: E" a( V7 m8 [
]
2 I! }6 q  l0 d1 P5 M3 |+ k% A9 c/ n- l; R/ U. }2 s0 j+ S
;;setup procedure; l# x5 s- G1 f# K% p: h

0 Q) l! V; y2 c. Eto setup  {, k' ~0 Z3 Z, W5 O3 b0 h

; p' s: y# D; A( Zca
0 B1 o- ]$ U- q; A; S# V, ^
  O* q+ T& }' X6 J6 Y  J& Y6 k
initialize-settings

1 `9 u$ r5 E9 E* z" `6 i' K. z8 @% C" C1 P* s  c
crt people [setup-turtles]

1 f8 [* N& c" `' R" p6 E
' r% h  g  _6 t# Y7 t+ Preset-timer
+ W* x, b& _) B  a+ G( x6 [% ?

/ \8 }$ z, L8 @. Ipoll-class
  h0 |/ j/ a2 S' D6 ?4 Y

& j* Q1 U; ~- x9 O9 a4 Xsetup-plots
' p+ M: q* z4 y

& N# s! S& d; Sdo-plots

& k. |0 s9 v; W) B$ Aend
% o6 d, ~; D' @3 z' n9 X1 I  _+ d2 @" r8 P8 z! J  t
to initialize-settings
8 j+ s4 C- \8 S8 B1 ~7 f7 [! o" m0 G; M! i
set global-reputation-list []

- u; n1 X0 i! P  C2 P
; W% c- B5 n+ r# C6 M) fset credibility-list n-values people [0.5]

* b4 c6 ?" p' P/ f; ~
4 t. B5 x7 s8 u8 hset honest-service 0
: _' H/ K# k, C) S
9 a2 w, F! l" A5 S# t) Y
set unhonest-service 0
4 E5 X5 _* L8 {5 u( t
: O2 Q! ?7 s- |" n
set oscillation 0

, j/ D4 ^3 l, z1 o3 a
2 P$ {1 k3 W4 W6 v8 W% Hset rand-dynamic 0

: A' @) v& u* D2 K3 y  Vend* n) I2 V0 T. `9 j( {/ N

% ^/ e3 o) O" o- {7 Bto setup-turtles
0 l- M9 J+ W! `' Z5 `+ J" [! l# _2 X5 _set shape "person"
% F) [  p; N% ~# B) \! gsetxy random-xcor random-ycor2 }' ?- W5 |9 i9 C/ A6 K
set trade-record-one []
; j! {! N" b" w2 P/ ?: ^% J- a
+ b% w/ F: Z0 k5 G6 I% I/ X
set trade-record-all n-values people [(list (? + 1) 0 0)]
6 p5 t; `9 S* e, l$ A, }

& {5 b9 K5 R, U- h% pset trade-record-current []7 t. D3 P& E1 x
set credibility-receive []
9 Z$ f. Y- k0 tset local-reputation 0.5) r! k3 f$ R  ~6 Z0 ^
set neighbor-total 0
' z! s8 A+ ]. K9 i' Nset trade-times-total 0
$ Y2 n& K- k  [5 Lset trade-money-total 0
8 ?; d& F' g# g. |! p; Mset customer nobody
  w+ T, }$ @& r% {set credibility-all n-values people [creat-credibility]
0 [& E$ j) {; `, q, y. F5 yset credibility n-values people [-1]! `8 v0 V5 W" p* m4 `
get-color; [: o. l+ K4 s" h
$ e' M" u! Q, `0 `% _4 i
end
. I- `' f5 k6 |+ B
1 B: ^/ h: a+ g% t- A# C1 {to-report creat-credibility
  V. X, Q+ B1 d2 v) U  Y' }report n-values people [0.5]3 G3 @5 r" ?' m) o  Y
end
' V0 N9 Q6 S4 e: @4 e+ i" s& A$ `; ^
to setup-plots
: s1 j5 p; W4 n# ]$ x$ n( ?2 K5 @; o# L' ]5 A
set xmax 30

  q* q9 Y5 C  w2 n7 R4 Y
/ y% C6 h9 z, h, n* s9 v- q8 Mset ymax 1.0

6 k8 t- R7 U2 M1 v) N4 \4 u# i3 ~7 J/ t" B& u8 Z
clear-all-plots

+ d" G3 m$ s) C
4 M7 \( r3 B& Zsetup-plot1
3 ]$ _. n. o; J
* a8 d) }. w0 t3 L
setup-plot2

! f" o) x0 ~0 p- F9 E9 ~8 H. ^' p& \8 B9 w  X
setup-plot3
* E4 ^: G) }3 |2 A- y; H
end
4 k# V8 O  B- e5 v
/ M: w( M& P0 b1 d: i( D2 ?;;run time procedures
2 K  J6 I& ^3 [* C- ^
- n" x0 }" j2 _, T$ mto go2 N2 Q$ |1 T6 g) z$ J; w0 p- {  b

0 ?8 i& n8 B0 _- E( P# zask turtles [do-business]

9 u& W/ |7 E8 U: H8 c; Wend
5 L9 k) j# J/ [/ j. U7 P4 _, E4 g" p. d' H0 s8 u
to do-business
, K  R5 _: f' j; ~

. y$ W  D0 W  ?4 Z! u' a% ^2 x& ?7 h) L
rt random 360

+ n4 `( a* _/ w( j( b1 L8 q) K6 I7 }8 }& C! s
fd 1

$ }, F0 U# t, w
$ I; K6 I4 |' M, N. cifelse(other turtles-here != nobody)[
$ A' `  n' G$ ~: e+ K

( `: a  g: x8 R& v0 x( ^5 q" Jset customer one-of other turtles-here

" ~% @+ m3 f: {  i. s" G
: \/ {' C, A) l9 m2 f5 ?;; set [customer] of customer myself

! e) p/ [3 u, a8 P1 E3 `
# x+ K  Q, e- ~4 L2 mset [trade-record-one] of self item (([who] of customer) - 1)
. p& X( F1 S" X+ Q, N" J7 M' H: g[trade-record-all]of self
$ n( T4 S* X7 |8 |! e! A+ D;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( A4 S  D. H' K4 z0 Q

2 }7 ?) f' {: g  }0 P! H( Jset [trade-record-one] of customer item (([who] of self) - 1)
: J) c3 v6 H/ s# r! }  |2 C[trade-record-all]of customer

  `6 i8 b7 l& I6 G  Z- E! O3 K. S; _
set [trade-record-one-len] of self length [trade-record-one] of self
% }4 ]0 h2 V7 B8 q- U% y
+ V( G7 [- B( s" V) m6 j! _
set trade-record-current( list (timer) (random money-upper-limit))

1 B1 Q+ S9 w$ _) B8 B
5 f5 T3 C$ N6 dask self [do-trust]
: y3 d. Y  L& p* s7 Q9 D# ~# v;;
先求ij的信任度
# Y+ _& S7 e7 T! b( ?$ o$ t8 O' T3 H7 V
if ([trust-ok] of self)$ W6 P5 M8 x! n. r3 y: \% y
;;
根据ij的信任度来决定是否与j进行交易[
( ?. M6 i" o0 |$ G1 ~/ o" I: Jask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself/ v) ?4 O  d- [& X

- x/ \6 o8 w6 b( `# o  k[

8 g. q* F4 x5 Y" U- P; S; a0 l3 P
do-trade
- F4 S) |) j6 X9 L

2 |" G% q& ~+ @( s1 |update-credibility-ijl

. T9 S7 b% D  `4 ~
* }! n, T2 X) Z) ?update-credibility-list
0 u# v6 ^# F( \1 [9 v# r/ b( i
0 z; j7 a. e7 [
2 R, Q: l$ R/ l7 E1 A6 ]3 ]; A
update-global-reputation-list

3 R4 H6 G/ r* K6 q3 O' t# B; z0 _7 |6 L4 f8 r7 m
poll-class

0 H+ J" I- H# z/ a8 D, f8 _% u1 ~+ H- }; Z
get-color

+ C' ], g) r+ `
$ e2 I, B4 f; c; Y]]$ d. z8 V* p7 a- _& _9 y1 j6 a

: O7 _! T, y) x0 H. ]# j3 y;;
如果所得的信任度满足条件,则进行交易
7 \2 m. H1 q, j# e  g1 Y. f, y) z' R
[

' K# V6 @# s; F1 [% g
( N5 _2 d1 v' [3 _5 j  |! r4 R) ~rt random 360

( P+ K/ x) M$ ?) g! {
/ p8 j: T# u3 `+ y7 y5 O5 Nfd 1
: t  I; u/ \, F8 y# G7 R. l: y
; @8 z* q. p! b
]
$ U7 N9 ~, C$ b- a5 d
" y# a# Z7 B/ n0 n  I* B
end

( g' M- c# [* {4 y) K3 X
; j2 T/ u8 c3 N8 {/ H6 S4 |1 s) P6 cto do-trust
7 }1 |* ]. Q5 ~( |set trust-ok False/ j7 {; J7 W) b% F9 ~/ }

0 X" h5 ]- Z; ?3 R; Q
( v2 q" S+ n* T6 p! ?% ?
let max-trade-times 08 P$ l' [3 ~- P2 p4 J/ V- s
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]# z& d6 e0 C- A) L' ^
let max-trade-money 0: d& ?- z3 f3 C+ ^. T( Z$ m7 Z! e
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
  g2 _/ H' Q3 {) E3 Slet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); z$ Q$ ?% }( Q! f( y2 d" t

6 z2 e7 ^! f% p3 I5 h% l

9 Q! x" ~1 H1 b) h9 H* ]get-global-proportion
" g2 R, ?1 q$ x" z6 Y7 rlet trust-value. P! o* {0 Z5 o/ ?* \$ e
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
% ~' b5 {8 S" Z" v8 e/ K
if(trust-value > trade-trust-value)
) R  D5 R& R( v* c[set trust-ok true]
7 [: o; B) f$ d- G  K7 N/ o$ r- \/ Aend0 z& i; @& M3 A+ y' e, d6 V+ `

: v# w2 G2 b7 X( Q5 bto get-global-proportion9 x  h3 ]6 d" I" U5 x8 C& O" @
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)" U% H* |" D) Q1 Y4 l3 h
[set global-proportion 0]
/ a3 j2 N$ l1 C4 s8 l* w7 r  g5 B[let i 06 C7 j6 _) F1 H- {  [4 G
let sum-money 07 j; U' Q# W$ T$ `9 Q) m
while[ i < people]2 f7 _2 T3 y' U# [- n- e  q
[
- F+ J$ I  c9 }2 K- n, O+ nif( length (item i4 E( @) c) z! P- p6 H$ [( F
[trade-record-all] of customer) > 3 )

. R7 B1 L" b0 m! ~: |- r+ J4 U( h[
) Z9 E5 T- Q* a5 |: ?; kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 @; j) h+ M1 h& O2 m4 J' ^
]
+ D7 h, K* v7 E$ U" D! C]7 T( u8 _( g1 c2 u! D; B5 w
let j 0
' l# l& R# A* a/ Elet note 0
! U$ z, }8 x4 V% ]" _# iwhile[ j < people]+ j  M/ p& {! |/ J$ V3 ^
[
0 n0 O# _0 S2 h! h& _if( length (item i
$ V% F; h9 B0 F. c4 Y[trade-record-all] of customer) > 3 )
/ R7 N8 G1 X! q" p& K" N
[
' [7 A% B/ g: O: K) F. W* ]- {( nifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
. l+ |/ B, |: _, f+ Q[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, `2 O. p" A  f$ B, o2 E! N  s[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
$ n* q5 U: W1 _* A% U]
  y* [) c) |0 S- N8 p& Q# z2 t]  z7 g+ S" p2 A8 F* }
set global-proportion note
0 @* j2 f4 a/ ]4 o7 M8 A* h]# h7 J& d% X5 {7 c- V5 H1 e
end
8 `0 T* v. |5 ~
  \8 V5 J7 B7 u* {to do-trade
$ M5 g8 ?$ ^2 H4 B3 o! ^;;
这个过程实际上是给双方作出评价的过程/ O* H  ]# h) r3 k+ |6 |) ~
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
. O- j9 P, n/ L, l& u7 u5 ?$ _set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价! j2 ~7 x& S, {% U* k
set trade-record-current lput(timer) trade-record-current
/ U4 d0 q. \" R: j/ r;;
评价时间
8 e# l8 m6 E/ A. H; s" eask myself [, e# B. [3 J! }5 _+ T
update-local-reputation
4 H, X3 T& s2 `6 aset trade-record-current lput([local-reputation] of myself) trade-record-current
5 e( k$ J. F! \, Q]1 H5 V- ]( u2 ~9 d. Q; `
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 q+ P8 G' H6 F5 d" J# L
;;
将此次交易的记录加入到trade-record-one
/ B7 j' h+ U7 {5 l3 B6 w# Fset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
& B, _8 b8 I6 u  Jlet note (item 2 trade-record-current )
. v4 h4 ^! q# g/ q. t/ Q- A4 ^set trade-record-current* X3 {9 w) q/ m
(replace-item 2 trade-record-current (item 3 trade-record-current))

: n" t, x# a& F& N3 T' o  Jset trade-record-current
2 E0 I; m) h  J0 ~(replace-item 3 trade-record-current note)
. u# t/ I) {0 V3 P& I/ H7 S
; w; t7 O& U; _- h9 f% g  k: c
( B2 m- \! f. C. v+ v
ask customer [4 `3 L! {$ z  W6 M# ?* S- w, k6 ?9 z
update-local-reputation: D7 C/ M& u' v2 i  E/ b
set trade-record-current
2 u( Q1 Q, @4 n, ^' H& B(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
6 e* t6 ?+ W! Y% r) x1 C0 U2 G
]. H. a  h2 h5 `- d
. i. m' a: t; x8 V8 C% I

/ p) A" C9 L: ~: k' z* r- @) dset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
  a+ Z. w( d8 q5 j) d* k% P

  d0 L7 p% o9 L- {  V, H5 _0 ^' D7 Fset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), s0 F! n$ G5 F% j# `; E
;;
将此次交易的记录加入到customertrade-record-all& ^4 n, A& I2 U
end5 ]. P& t$ V" b: s- O" v4 ~

+ l9 k/ L0 v7 Y4 C9 q0 S4 Gto update-local-reputation! e  y8 Z. f/ g0 f
set [trade-record-one-len] of myself length [trade-record-one] of myself
6 Z, k4 [3 U9 [3 r
5 z% K. M* ^' ^9 p2 P+ c
2 z* g  \! Z3 P6 d7 E, X;;if [trade-record-one-len] of myself > 3

9 @7 c3 S9 u& C; I) t7 P, wupdate-neighbor-total
- G, l% h" S8 Y4 c  H5 \9 D1 S;;
更新邻居节点的数目,在此进行
. n* H, R3 M) B8 h7 flet i 3
- x+ A5 e% P. c% p% _: ^" r/ C) Clet sum-time 0; K, E- J3 n0 \) V  C. u
while[i < [trade-record-one-len] of myself]
2 q  n2 [, L/ l9 W, s+ `[
2 L$ y! V; _+ ]1 ?3 L' t/ C3 Eset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
7 [7 f: ~7 @9 x% O# ^& H& J9 Rset i
* J) E% k/ @- n/ O8 t( i + 1)
2 R" X7 l4 Z+ g. O
]
3 c5 V  G3 [- Blet j 3( L1 F: M% u) f
let sum-money 0
, m4 F' Y0 K! Z- c8 g! wwhile[j < [trade-record-one-len] of myself]- P9 \9 s6 d# h3 Y& Y9 [0 c+ `
[
0 v$ B' a6 O9 ^, `7 d0 Lset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
$ N  Q* E3 x! Zset j
' m: K* f1 L  V( j + 1)
; m2 T7 o! [, G1 M4 C- q
]
$ m* Z2 t9 x- w2 l1 c, qlet k 3
; F* @0 E& W* g8 \let power 01 X2 h0 N( `, f1 {% Q
let local 0
$ g& E/ h" p5 _8 m3 Nwhile [k <[trade-record-one-len] of myself]
1 X" m# N+ z( {0 |* F  z[( f; r1 C7 \& m6 }
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)
/ ]' f8 Z; \1 m- T3 i0 p8 Sset k (k + 1)
1 t( ^- `* Q; N3 g' W2 O: Q]; V; ?" l" f  w* O/ {  \+ q* l# _
set [local-reputation] of myself (local)4 j; I- o0 c6 B7 ?: S
end. @8 B, o, l3 c0 A, `5 M& E5 h

. f6 @) Q' J0 n4 Z* i5 ?0 Qto update-neighbor-total+ {4 D! L. c1 I) T1 q/ K' n* k

4 D) k5 A4 d* ]if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
. {3 ]/ c8 \! J3 A' I- w7 y, N# F- Q% V, D3 w& ^) t

# T& t( B1 Q3 L: H! ^: D9 z  gend
2 L2 n- H$ b5 x& }/ M
& S# ^2 ]" t, P8 W1 [to update-credibility-ijl
* i) v$ h9 c( R: X/ F, p# o
6 F2 R; {+ V5 `% {$ }+ X;;
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。- P# Q* k6 E' N; A  v1 G9 r
let l 0
- c2 t# z1 \1 g4 P* |% y2 [while[ l < people ]& Y1 y# @' P/ s* _2 Y( G6 v/ A
;;
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, S: D4 x! v: P" a3 u5 d5 g  ^- b
[
6 e  U# l, w3 j" m0 P0 f5 K, {" `let trade-record-one-j-l-len length item l ([trade-record-all] of customer), w) z, ~! \5 d: k
if (trade-record-one-j-l-len > 3)+ C; d, A3 V6 U! p
[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
  {/ b( F& Q3 o; ?2 jlet i 3
5 k( S& l9 V' h' m" B4 Wlet sum-time 0" i5 `7 V) U/ V/ `
while[i < trade-record-one-len]
3 U- ]9 y' w  O2 i[$ v* c# ]$ |$ C2 o
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ a" }0 z/ _0 _7 H# ?! wset i
, G( S% m# s& ]" e" W0 d! {: Y( i + 1)
4 v% R9 Q7 X' t  c+ ~- |
]$ Z. b, u7 `9 H+ B# r+ [& @( K
let credibility-i-j-l 0' y- C& l: T! [
;;i
评价(jjl的评价)% j, N6 C* c  ]4 U% |- C
let j 3% U# E! O+ }0 l& j
let k 41 F5 X/ S+ Y/ p  b1 D& `) A& B$ L, S
while[j < trade-record-one-len]$ _9 V  y5 @- }) Y8 Y% z
[- |  v8 g% C$ b$ }$ I. L% D% C0 X
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 E( `# w& n* E+ h' h3 G2 W4 X: M
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)
) e' K* I" S% p' R+ }" v7 {set j' [; h  S5 I" P# _
( j + 1)

$ N% b4 X; n: A, g4 i: n2 N3 j]3 @8 s( L# e% t( j1 v4 c! v- h4 |* Q
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 ))! p$ X: Y0 {; W* x, z" P9 W* K
0 h+ Z. X) f0 T9 B7 _
  ?1 ]/ {! @; S: j( n; G5 J9 `
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
4 y5 l6 |$ O! X7 @9 |;;
及时更新il的评价质量的评价2 ]: G& `: o  A4 O2 w* P
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
8 L. j4 e* r4 Z1 ^& dset l (l + 1)
6 d' u* |* k. J; z]: {: W# g, \7 t: ~9 V
end' A1 s3 P) l% x7 o4 z
) ^$ t' ]. P  \$ |8 n  a( h
to update-credibility-list8 a3 s0 B' W! [( A
let i 0
* e5 g, v* o, |8 |) {5 @8 S: Iwhile[i < people]
2 K1 _* v/ _! v+ a/ v! D[3 p9 X: ~3 g- {' `- q( h
let j 0
. m$ o8 q! B% B/ ?& Olet note 0
4 c7 z1 D- h6 ]! e7 L+ rlet k 0! _1 u# M( r+ Y
;;
计作出过评价的邻居节点的数目
- ^- F8 w' @$ }/ L6 [while[j < people]
; \! w6 W) @7 O  K+ c5 ^* O3 c" X[
- k2 |7 |: Z$ _0 ~9 Q7 Eif (item j( [credibility] of turtle (i + 1)) != -1), }1 S4 O+ v) K4 q$ @6 a2 i
;;
判断是否给本turtle的评价质量做出过评价的节点
8 T2 z: |6 p/ [' q, C2 ^[set note (note + item j ([credibility]of turtle (i + 1)))
# N( _4 I, p9 ^: M/ ^  ^;;*(exp (-(people - 2)))/(people - 2))]
- i6 ~  {- a2 n- {( m9 o$ G
set k (k + 1)
) e! j7 L: ~$ `2 R& j8 f2 O( p]- j/ F$ }  s# `: ~
set j (j + 1)) D  _* G9 \/ Z, K, b4 [
]
! C- }, A0 i# O" v, e: r8 Tset note (note *(exp (- (1 / k)))/ k)5 m! b$ Y, {! i- L1 m6 y
set credibility-list (replace-item i credibility-list note)9 W& h, ^1 l" ~1 Q. A7 X
set i (i + 1)8 z$ B8 F( ^2 l% a/ w: \! N
]) X9 w3 U1 |) `7 Z
end
1 w: A5 o. S9 `4 y# L% |0 E( v7 R- M; A: w' F3 T4 J
to update-global-reputation-list
$ ~" e) |4 A8 W- i2 Y& alet j 01 l1 `  G) R3 l
while[j < people]
& N# _% Q. s* v1 e: i9 p[1 f; O& u( e7 ^/ v8 T" j6 Z
let new 0- R1 {) k' J# j  @5 h: e) I
;;
暂存新的一个全局声誉. C$ t1 i6 u' c' z! s+ I
let i 0
! Z' W- y9 d! t1 Q0 Ilet sum-money 0
- b/ }( W  l) p+ F8 u( `! n6 @# L9 mlet credibility-money 0! C- S6 S9 k. c; S9 h
while [i < people]
) N, o% _+ ?  ^$ I[. c' D2 \: u$ B. x. @/ k! j
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 f% u3 H# f+ t( o" ^set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)); ?; w+ i; _, u$ L
set i (i + 1). Q1 b/ X7 |* c$ R& J9 [9 @, m
]- ^5 x4 C' k% [
let k 0
" }, x' s0 {7 U( |  J2 wlet new1 0$ E& K! i( A8 x  m- C, m
while [k < people]
0 O1 b' e5 {* O9 T" \2 ?: p3 Y  S/ O[
' h- M# ~, R" Q" m1 n' i2 ]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)0 b4 z) H8 V; a7 {; G, A
set k (k + 1); c) ~% V1 c0 z! S# ^
]
3 T4 y0 h; I3 u/ uset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
4 M: e& I, O) H# F" X- Fset global-reputation-list (replace-item j global-reputation-list new). o; D0 A' h. a( Y" |5 C
set j (j + 1)' e# e# g+ }- T% l1 @: _3 O
]
9 p% G0 E  d  X2 t! Y+ mend" H: N* P% F* Q
* M! k+ N2 z" y: {$ ?$ }
" D: c. I9 U0 J" h) S" T

1 E$ V9 u4 [0 b: K. l: jto get-color) o4 k& j9 L3 H) y
6 T" }2 ?9 O, x0 [
set color blue
) v8 O0 i" [5 Y3 a/ Q- r9 P( r
end
! @$ V, R/ p( C" x2 e6 @, c, e
. \! e+ n3 I7 Y; |! K1 t9 I% zto poll-class: Z" K* U( x5 `' X  w
end
! w+ Z6 M. o0 H  u/ G2 I& Z5 N1 z4 T; x6 ]& O3 k/ N2 k
to setup-plot1
6 X9 s5 _) c+ `' Y+ e" w& l. x% D% y- @
set-current-plot "Trends-of-Local-reputation"
8 O" x3 u% Y/ v4 b2 S) a. O

3 k7 }* s' S5 z- m7 Q* R' S! X. dset-plot-x-range 0 xmax
3 O  N) `  s, K1 r: S- q

9 `' Z3 c$ ^& b4 j8 D6 x3 b6 Wset-plot-y-range 0.0 ymax

* F5 y2 r4 c* k3 Cend8 e8 W, S$ x3 q: y4 D9 Q

3 }! {7 T6 g$ @/ ?+ Sto setup-plot2+ j2 |3 C$ u! {# L

/ Q0 ]+ a5 l' N5 u* }" C+ _set-current-plot "Trends-of-global-reputation"

8 y/ _: G' X, z, s# s6 [# F8 E0 _( q4 F; b# ]/ \
set-plot-x-range 0 xmax
* t- d  F" Z7 ~

( V3 F. @: A; f5 v7 ~- {8 oset-plot-y-range 0.0 ymax

) e# M: \1 i6 U3 h0 W% send5 `% s, ?5 d8 l* G( b8 F- ~, }( j  n6 Q

" x5 i* s# Z$ U  Hto setup-plot3
( Z4 r6 l# B! i' I" }
1 B7 u, m: E8 Z" }set-current-plot "Trends-of-credibility"

7 n* Y3 t# p" C+ H* l7 Q; [- ?. G5 `$ w2 [* O
set-plot-x-range 0 xmax
% s1 K. z9 `! k4 u8 i- {! H' t

; ]8 V9 l/ C3 D+ h6 N- Tset-plot-y-range 0.0 ymax
; S, H' R3 B. C+ I& o5 O  c
end+ [" c5 q" E0 x4 Y) P7 i

6 P6 _! ~% l' K7 gto do-plots% F5 Z2 f# P8 J1 F9 G/ {
set-current-plot "Trends-of-Local-reputation"5 x/ H1 R; h, `/ v7 ~  l+ A
set-current-plot-pen "Honest service"
+ {2 ~: P7 ~' w" d$ F: ~$ W" uend
$ J& B, A9 y7 Q9 ^) W1 `; h5 j' G+ V) Q; i' e2 Y
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ]

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发表于 2008-3-19 11:33:07 | 显示全部楼层

有点困难

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

还有啊

发表于 2008-3-19 11:35:59 | 显示全部楼层

还有啊

能不能传nlogo附件上来,一个一个敲太累了,好长的程序啊。
 楼主| 发表于 2008-3-19 12:47:57 | 显示全部楼层
嘻嘻,不好意思啊,现在把附件加上了.
% g3 b3 b' X& U  [4 g, Z0 b0 u  u$ v8 V  _: `( v6 }; z1 I3 U* @3 h+ z
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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