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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:
1 w$ [; y. Q5 Z) V" ]% s, i. |7 `to do-business
& @, x1 a! `( i- Y( D rt random 3602 s9 P3 l6 g9 n
fd 1# ]; y2 [4 j: j  v7 X: \; J/ T7 q
ifelse(other turtles-here != nobody)[! u8 q- _3 B* J& C# B( I
   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.
/ ]  ?! i* j6 E/ ~9 T8 [& b3 b   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
3 }6 k4 O, ?( o+ D* J   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer+ a% O$ Q2 h, r+ f
   set [trade-record-one-len] of self length [trade-record-one] of self0 }$ s: l3 n; \, F0 D
   set trade-record-current( list (timer) (random money-upper-limit))
$ S0 d3 f1 I5 J7 V8 B
  p0 t4 D4 S4 Z! e问题的提示如下:
3 ?. t! Q- o( B) m1 H9 d
1 h2 t3 C) ^0 f9 j) Zerror while turtle 50 running OF in procedure DO-BUSINESS
$ O5 t! |; l( H3 i+ Z  called by procedure GO3 b) w1 R% {7 f7 o' n+ N7 c% t4 E
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
- A: R. ]) x$ I& {
(halted running of go)
5 H8 }3 l. h8 y9 C) y) [: ^5 }& h
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~~
: q5 @0 |/ @1 f, m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 j7 p$ C* [3 l3 l! vglobals[
1 J- A; o& H6 Hxmax* x8 Z3 g, b/ p, X8 N' B2 g
ymax+ E% @5 P' K- k$ P% }* ~/ L
global-reputation-list" J8 j' V: [* Y, g5 B

* G" L8 R7 V2 a6 C( h% i;;
每一个turtle的全局声誉都存在此LIST
  V5 z* N/ k/ [5 V5 G6 ]credibility-list
6 L' u4 V) r. x' Q8 N2 B. F;;
每一个turtle的评价可信度
9 E- [* k$ c: d3 k$ v8 a8 P) M" fhonest-service
- R: q/ i5 [/ H$ }- t( ~/ Y3 Sunhonest-service1 b. T/ I! r( K- m
oscillation$ G, Z  }/ f5 D$ z9 V# h
rand-dynamic
% A3 l5 x( R; ]% L# ^  e! Z]& q7 _- X0 v3 m8 ^0 r

8 o9 A% C- u' S  a" D8 J5 Aturtles-own[1 q# e$ U' b! p0 m
trade-record-all5 J5 x3 v% b/ O1 F
;;a list of lists,
trade-record-one组成5 S, X% r3 W: N
trade-record-one" P6 c( B" @% ?. z; _
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录1 o1 ~9 F3 ]! m6 b  m# x* }
, g9 Y9 N# D3 ~6 R) g
;;[
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]]
, A9 c" a3 c  R: gtrade-record-current;;list,trade-record-one中的这个list,作为暂存用,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]: k7 v8 r0 k& }& ~
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
( _. V! i& m# L* Rneighbor-total* {% {  q$ G* H9 q6 }7 y, M9 w% h8 f9 @9 m
;;
记录该turtle的邻居节点的数目+ E. q$ r& U* Y3 l
trade-time
+ }: Z9 D! d- c& R  ^0 y! N9 G;;
当前发生交易的turtle的交易时间" A9 ]+ w- r' F+ k+ \; B' u
appraise-give; e' G- D- M/ d  c0 P6 d4 P
;;
当前发生交易时给出的评价
( V- r7 o! \9 x! J# F( Aappraise-receive
4 f# P6 M9 o+ o1 w7 }) k: `3 n;;
当前发生交易时收到的评价
; X' }$ O( w( Bappraise-time
& S9 r9 H8 H' A& }1 G! j: v$ m;;
当前发生交易时的评价时间# E# y. A3 X, R/ \1 x
local-reputation-now;;此次交易后相对于对方turtle的局部声誉" M2 S7 i: ~( K4 W7 m2 I3 c
trade-times-total  n1 \- N$ f2 ~
;;
与当前turtle的交易总次数
" @0 H# ?% g& utrade-money-total- l" {# [) H3 a8 K( G/ x" r* D
;;
与当前turtle的交易总金额0 i0 B( l$ i9 I4 C: S
local-reputation! m0 z) J0 ~7 h3 u
global-reputation
9 }: m6 v# S4 C2 A5 tcredibility, l4 M' g7 i% e5 i% w! u
;;
评价可信度,每次交易后都需要更新4 N/ h* `7 V" {% [
credibility-all
3 w7 d6 ?* R( X: u;;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) F$ J, }: o4 F9 J
8 ^' t5 V* z5 \/ a  h
;;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
6 U; }1 z$ e, @. T8 Ycredibility-one
! V$ B* G* p  {; _/ \6 Q;;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people8 I- p+ U- r2 M8 J/ x7 A/ g
global-proportion
; i, }- z" Y0 b$ z5 L1 r. Gcustomer
4 j4 \$ c7 a% u3 v) Fcustomer-no
. Y7 g. P: H) K3 y( l9 m/ Y, ytrust-ok
" D; P* g2 M/ `) ]# D4 E9 Itrade-record-one-len;;trade-record-one的长度
$ U3 L4 \% N8 f$ z/ K* T; b]+ J) Q4 G2 K4 w9 y

2 b$ s$ R  C; b/ ^# x. ~;;setup procedure
: }8 N# W! h' o, ?
9 x0 r) ?  A  [8 j! K' }) s" m7 Xto setup
  u9 ?. t* e7 ?! S6 ]# v2 B5 d6 Z: g' l* t* @" e; {& Y
ca

0 r* F# M* O' k# @( H
! C! \' t2 T8 G# }0 `6 pinitialize-settings
' C5 I( u6 O' s8 l* C/ i9 X

% {) K8 p0 G$ f7 k5 `6 Y9 Ccrt people [setup-turtles]
/ Y, n6 j6 j) }8 i  U) E
+ s& S3 {  [& p* d8 A0 K: b7 f
reset-timer

& [, C5 x* j2 x
- _. Y8 e+ f$ T$ P" lpoll-class

- w5 s  ^2 j7 }3 t: V: ?. X
2 y" U5 D* Z/ Usetup-plots
- k- J' k6 d) \6 e: k% Z$ x% Q6 s

. |& a+ l* p2 F7 ]do-plots

: ~+ V$ y: E) X( p. k* r6 fend
, d$ X1 @& [* D' i+ F" {
; [* s. ^9 g! _/ O3 l' t9 Tto initialize-settings
1 `; ]& g1 O- k- D, l! W6 b2 Z0 Q* I. p
set global-reputation-list []

9 O1 T/ i2 R2 d! {  _
& E% |( l! _3 M# a5 {- ~1 e! H4 xset credibility-list n-values people [0.5]

! Z: C+ e7 ?1 v5 q, p: Y4 E; q: \" u! h: X  \& D
set honest-service 0
- e: u/ i+ l) k$ Q1 X
6 q- `) H1 b3 S! @6 t# C2 t
set unhonest-service 0
3 u" f5 n" P4 H8 E9 ]" [
' _* a( r( p  i+ f" h
set oscillation 0
9 B( f6 n$ [0 |& N- }

( Z) |' e0 a  n" i  l- U" _set rand-dynamic 0
. U- v2 E; I: y5 u
end
0 N# g3 e8 f; t
- J+ o  A7 K/ k" Jto setup-turtles 3 Z# u" b. G! j) }& q
set shape "person") Y, z6 u; {3 P% ?" R# H2 ~
setxy random-xcor random-ycor
/ S+ ?+ T" o2 ^set trade-record-one []
: a' S, y; |8 |' L3 R

) l2 l% t, j, Z! g2 _set trade-record-all n-values people [(list (? + 1) 0 0)] 0 S2 f* t$ ]4 ]* ?- j! H- z
, n: b( r# |" u4 K9 S- K. F
set trade-record-current []
2 `5 f2 |) s0 `' r1 qset credibility-receive []6 o# P6 R$ ?5 u. v$ ?0 \' y
set local-reputation 0.5
2 G! B. k. `/ J, lset neighbor-total 0
! u7 P& B0 ^: S! b. ~( Z* B1 Y6 }1 }; ~set trade-times-total 0# [3 L4 {, L0 ~4 X& v* l$ `! I7 E
set trade-money-total 0
6 N$ L* S9 J; {/ e2 xset customer nobody1 v# u6 N! d9 P7 ^& S) I
set credibility-all n-values people [creat-credibility]
) D. _( R9 `0 y# Y' g/ q, x( B$ cset credibility n-values people [-1]3 k2 d, p" S. W/ Z" W& ]
get-color
* o4 d' _" s9 }2 t5 H  i  C5 W; I

* A5 E5 V8 j5 U; E0 Hend( R/ P2 [/ {  Q

* Q, W7 S, A% X8 V6 bto-report creat-credibility
6 F2 O4 v& `4 W/ \, ^report n-values people [0.5]
3 _: t; s1 U) X  U1 G* cend
! k( b: t3 @  l5 t
' ~1 F" X4 q; M* w5 G4 bto setup-plots
# @" }7 O" G6 E, R2 |0 x& N2 y8 _
9 Z6 u/ ]3 i3 X% L) }set xmax 30

; r1 a2 B9 {4 w* J$ s2 ^- j6 ~% F, i6 y: R$ a* i" k
set ymax 1.0
  b/ H  g; K4 G  v4 @: o" e

' j" B3 S  s. X$ n, x! }- nclear-all-plots
# z, Y4 P, V% ?6 d1 X4 b% K/ s
' u. m/ ~/ I- j9 _
setup-plot1

/ t! O' ?2 z$ }& Q: R" |! q9 g8 x# ]+ W/ X4 k$ P
setup-plot2

9 i- i4 x& l9 v! u% x; b
: D+ b8 S! ]2 k9 ~; P: |setup-plot3

* u5 o; C6 c: E; [5 k. Wend
- p, h2 r% X$ B3 n3 F) E2 _# o3 F; m0 J% D1 n1 }
;;run time procedures. w) ~0 F: B: _8 e3 |

- |5 G/ C* z" c- J8 `to go
' P1 e; ^1 U6 d
" z9 t5 C/ C5 g. Y% cask turtles [do-business]

; J$ ]4 v0 Y$ b2 e  h) I8 l1 K% Iend/ w5 _) a. e- @. Q$ ^
, w1 U  M; \# n6 a- c4 J) P! T! `
to do-business
1 P6 x; z" s, @& ]
$ _4 G* G0 R- X
0 ?# p. _; t( ?( U1 k
rt random 360
/ r! T1 f# y  l# F% k8 h

* o+ B+ O  K0 p, ~8 }3 afd 1
' n2 ^4 `) ~# q+ m* X0 [

# h6 d/ t/ R/ F! Xifelse(other turtles-here != nobody)[
+ h% @& Q! _1 f- I
; {1 J' `8 [: h# n# i' `! [
set customer one-of other turtles-here
: [( ]' m# l5 T/ N& N3 h& j3 N5 q/ J

$ I7 ]# v" g# L% \3 P$ U( c0 s;; set [customer] of customer myself
8 Y6 F/ G& R6 t9 x
2 r6 E# S% e0 H- s
set [trade-record-one] of self item (([who] of customer) - 1)
& _6 h5 z: k% M% H& M, W[trade-record-all]of self2 v8 P/ k8 w: ~# @, h. g* a- D
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

( P' M& `/ N4 T; e6 I1 F7 h- z, g1 ?; e- O
set [trade-record-one] of customer item (([who] of self) - 1)0 x: l) l, @% u
[trade-record-all]of customer
6 x- j& Q0 ~9 X0 C; U

  u. |& g3 @  V' J0 U3 R% p; q; ^set [trade-record-one-len] of self length [trade-record-one] of self

% t4 s2 l+ x6 m% o. j+ ^. n, I3 @+ ]0 G) g- B
set trade-record-current( list (timer) (random money-upper-limit))

8 Z! K1 m! Z0 @: E/ x8 {1 f0 r# [4 l4 s7 l
ask self [do-trust]
( X+ {. k3 e' s# ];;
先求ij的信任度
, V* f1 x+ W# f. f7 U) e: p: l4 [9 W# Q$ D- [
if ([trust-ok] of self)
  a  g) V* P6 R;;
根据ij的信任度来决定是否与j进行交易[8 W, q" E  }5 t+ f' R7 o
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
! v0 G, L+ H) d  m8 L' c( q5 L& e
3 x6 r$ Y- }; \6 U& a- V7 P[

2 ^( A+ \1 ~# V- v. H- X- J2 O* v/ A) Z4 h
do-trade

' @. h, O. S2 T) X+ k3 _2 @* }
5 k/ k' g( I( V* \' q) ]# w& Bupdate-credibility-ijl

1 K9 h9 Q$ R4 I$ C
( S+ n6 o" ?8 n% w" v! y2 O* G5 kupdate-credibility-list
( B* h+ u5 ~' I5 g
& M4 m7 s( f! T$ L; M
, F0 W$ h" J/ ?: E
update-global-reputation-list

5 p5 Z7 l2 k, p) i, h$ g3 c
# x' r, u: n2 W/ [/ m% hpoll-class

/ e' c/ c4 R! o' o" i) W; k9 B3 o9 e0 V
get-color
3 \9 U- J! S# `
0 q* H2 F( a  W) K
]]
' O/ F9 N2 g( @1 f5 t+ b" T0 u) {- @7 @5 f. t2 x8 \( H
;;
如果所得的信任度满足条件,则进行交易
7 u4 h# i. s' N2 C- ~# O* R* N
& Z1 f6 a& n1 C# ?[

( P. h& n; \: P" g1 [5 Z( H1 M$ Y5 w. R* e( G" Y) s% J
rt random 360

% X& d7 q/ m, g  z
/ J5 g. Y! C* W  Tfd 1

6 [9 R' f6 p, {( |
2 j7 x; s) U0 }( B5 v8 i, M; B) \]

0 ]' E" i- L9 o1 U2 V, j! W4 F. r, @
end

" \2 L7 P$ P) l* p$ Y* d7 n4 N. m* i: _; t
to do-trust 2 h/ l7 X: o9 Z( |2 _
set trust-ok False5 e1 o4 m/ S0 b/ J+ w

$ X+ O( z, N6 O7 R9 B  u1 \, h
0 `5 w+ ~% w0 o+ v0 P. |. y" L
let max-trade-times 0, q: h$ C0 @1 J  C2 I8 `4 {
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
4 \# K+ D$ N6 Y/ _4 alet max-trade-money 0; [- _4 i" F: \
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* v7 Z/ j/ [. \& f* v
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))# v( X* R+ b2 n! B; L9 [
( B$ z7 y" `6 J! ~3 i# D

; a% k- Z' Z3 k8 S& f6 Bget-global-proportion1 ]  f3 g! ?1 s- y) R
let trust-value# Z# S8 t- s5 y) A8 J) e. 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)

5 E0 [5 n1 |, b/ Q1 K/ E+ B6 Jif(trust-value > trade-trust-value)
  u( @6 x" k! S! I[set trust-ok true]* K6 b& x" e3 L+ r
end
; G/ B# _4 E, [& m5 a  G: y# W( H5 q  F1 q+ w
to get-global-proportion5 F& y5 I1 O# [3 ]8 P' [
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 C5 a* k/ j+ h+ t[set global-proportion 0]
. ?, h% `3 `/ H, ~4 r, b: D[let i 0) Q( p. H2 F  F
let sum-money 0  c. ]% O! L5 a
while[ i < people]
% @0 _( _& L' y[% N* w# h( o# e6 n* C/ s0 B5 F
if( length (item i
% }# @# ]8 k9 i6 m7 ?1 L9 O2 c  I[trade-record-all] of customer) > 3 )

1 a7 J7 V( _( `8 c  R[, f' o1 b3 E7 t' e
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. |% g: t% e4 ~$ L2 l7 P* Z]
5 _+ F& Z0 `/ n8 q# P]
. h1 b4 W2 G" g! O# Jlet j 0
, i1 [% Q1 E# x6 Olet note 09 R% e  d! N3 x3 `, j+ b
while[ j < people]8 r1 I! h/ l0 i
[6 q- M2 E$ P6 S% R% K4 X1 q: x
if( length (item i
$ }: L" K# W. k6 i[trade-record-all] of customer) > 3 )
6 O1 x# Q2 V& M& _4 R, t# H
[
# ~/ V5 L8 @/ rifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)4 d, ]% m* b( E' F4 }
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
0 U' g2 g0 n  a& h[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
, F( K/ T3 {7 }; Y& d; E1 g]
- P) `6 V7 S4 \6 w! z]
9 g+ {- j4 C' D. J3 q/ G5 e  vset global-proportion note
1 ~8 e! L5 J* I  X, @: ]+ |]
5 [$ K( R2 W1 e# E: C2 Vend! d6 a& i$ s0 z+ ?: W

9 k' c, O/ f+ X& l; ]to do-trade
7 T1 b& w8 Z/ B& B7 s;;
这个过程实际上是给双方作出评价的过程. V' L3 g9 y4 K2 r+ G1 J
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
7 l  B6 D! W5 |0 xset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
- S/ s' M& d; a7 \+ d# W4 K& g, zset trade-record-current lput(timer) trade-record-current3 y* I0 D% M) N
;;
评价时间) G; Q: W; T! {! U( I8 u
ask myself [
2 [. O& B7 E5 X- `update-local-reputation
* u3 c7 X* k0 C/ l( o( i; Qset trade-record-current lput([local-reputation] of myself) trade-record-current% |' {. |) a/ K' t( l3 e% Q
]
" U/ i  l9 o! @2 h5 ^set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself- I$ N* ^: a  e, ~- v! c
;;
将此次交易的记录加入到trade-record-one
+ R6 H( V( }. f" V8 ~: x! x& G- aset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
) Q. z4 |' r* i3 H8 ]' T3 V8 plet note (item 2 trade-record-current )
3 K' r. T' ]! q- l) c4 Nset trade-record-current
0 e( B. M6 r+ l! p7 Z(replace-item 2 trade-record-current (item 3 trade-record-current))

$ K) M% T) [3 Oset trade-record-current9 @4 E5 k( s( k; a0 J8 N
(replace-item 3 trade-record-current note)3 @( i5 m' _* ~# F1 a' H

0 Y+ Y3 X2 z( o% f, v' |
, u( C5 S3 t& l& [  j' u
ask customer [
9 o5 H3 f  D2 Y! R: supdate-local-reputation
9 I; T8 b$ I' H, G" e9 Vset trade-record-current5 C7 s, u  ?! I" T7 d5 ?* l% j
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

3 {, _9 l5 _$ [/ u) Y]& ~, |. R9 ^1 Q2 U, j( L
3 z. x$ p! m. ^- W

6 g* y* s/ o3 L( l& A' ^set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer6 B4 A& ]  q5 k1 a# G: h
' z! ]  b1 _/ W4 `
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 ~$ N0 p) f2 X: b  U4 e
;;
将此次交易的记录加入到customertrade-record-all8 [- x. b7 t; O. k% p9 U* I1 P3 e
end; i2 M& N& K$ q3 |9 h) |) a7 z' A
) D& q7 z- |2 V: f
to update-local-reputation: b" t1 A0 D2 o
set [trade-record-one-len] of myself length [trade-record-one] of myself
+ Q: K; W+ U& ]% Z( |9 a
0 M$ b% s! P; [! G4 M+ y" K5 E
9 z9 t1 ^* |% U; F1 U- A;;if [trade-record-one-len] of myself > 3
' ^5 a; a% ~6 D+ X# y. {
update-neighbor-total' M* y' R+ I" l! P
;;
更新邻居节点的数目,在此进行
+ S* w% i( r( q6 T$ K/ t8 ~let i 3
4 d2 u* a  s+ `' w4 O" G! c$ clet sum-time 05 j' W' W. V% g* S7 G3 ]
while[i < [trade-record-one-len] of myself]
& a; ?( p* f. _" i7 [) `0 z[
% ^) \7 V& ?$ P: V' g$ a  Eset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' M- i7 ]. {1 a" |7 [% s5 E' Q
set i
/ L0 q% L( J: {( i + 1)
; Y0 O: C0 f5 V( z7 Z: H, J
]9 b( |# E! R7 |+ C) |6 l
let j 30 }: R5 v' K# c$ [) Z8 Q
let sum-money 05 \2 ]( ~! e( M, |3 _7 \5 c
while[j < [trade-record-one-len] of myself]; k0 ~8 V! g' {; @( I
[
1 ]7 d6 [. P, J# k6 r+ L6 B1 kset 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 M: U' v) Z( o" g6 |set j/ o, P. x5 y+ O7 t* J9 i2 p
( j + 1)

/ C8 K/ x5 `& Z' L1 h7 s- X. q]1 q+ N8 _" Q7 \0 U- K' l" M" J& o
let k 3
$ g: U' J; \1 w( Q0 \( Xlet power 0
; G7 Y) u* [5 ~3 Q  j- flet local 0
9 r. @" y% G# [while [k <[trade-record-one-len] of myself]8 _: Y/ l" @/ i' e$ N
[/ v( g. t/ [+ r" R' c& d. i: N
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) 9 Y  |, v+ K. @0 e
set k (k + 1)8 Z/ T$ Q: m# @8 o  Z8 I3 N
]. r3 G" t  g+ [! k& x
set [local-reputation] of myself (local)% @! U) ?  n- l6 c5 k- H
end, T  ^* l; S* S# U7 F6 [

; C  `- G" e3 n, p5 f! H7 sto update-neighbor-total
. B  }2 f" I* U6 k9 f
) M3 x# T/ }6 yif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" e8 G9 t8 n4 ?$ ^& Q( p

1 `5 }8 |# X# y
* ?* J4 V* `: a2 |6 N, `
end- R% Y# |) v9 Q, {2 t, V
( x* r$ Z% Q- I( S+ m
to update-credibility-ijl
! V0 l" G; }0 M7 C0 Q: O+ z! p( ~
1 g' L4 ?: c( [/ S7 f- k;;
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 V6 u/ p/ S! L; q6 `
let l 0
' o* A0 G3 k; K& t0 z5 z! `while[ l < people ]
0 v9 s3 o0 H( J8 [; {;;
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
' Y6 H) U' b  t1 o[" \2 C& y: ^& L; u, Q
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 s7 H# \3 e4 x- R' wif (trade-record-one-j-l-len > 3)( h7 Z/ \/ l$ \  m" V
[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
8 S$ z/ `! [3 B/ j9 L0 R0 {7 B$ o9 O  qlet i 3
% X% A$ S( I. C$ q$ alet sum-time 0- T' L% r6 R, E- n- M
while[i < trade-record-one-len]
* G: ?3 n! d, K9 M[  l, m! O: N4 W0 F4 k/ {
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
% U; g0 H3 n! R6 lset i
; P4 ?) X( W; ?" U( i + 1)
+ X: a! \" s# x" b1 d4 q! l
]# N3 ?! b( p. w) Y0 T
let credibility-i-j-l 0
$ N' U# w/ D2 d! ?;;i
评价(jjl的评价)) ~0 U) }. d5 l; p6 D9 n# K
let j 3
) x5 C0 |: i2 V3 n) {let k 4
$ _. A. d/ A; G9 T4 p! Twhile[j < trade-record-one-len]
) D5 W! |' b6 U+ G2 V[
- I2 y7 u& Y$ h: d& twhile [((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
+ \4 Z6 s% C9 r" rset 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)
$ g# `4 o9 z; S, K% |3 _+ L" I' Wset j2 E6 E9 I! r1 x% p" g# T
( j + 1)

$ a' y: W2 d* U]
) P- T7 Q3 [2 x. P0 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 ))! E1 X$ f8 G$ b/ b

2 _' O, C* b6 b, c
* Y- Q0 z+ O9 \# f  n* V
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); e/ C; b( b5 K) @7 ]% w
;;
及时更新il的评价质量的评价- P( ~; {, S3 [& f2 y
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! ]$ O; b% g) R- ]; I
set l (l + 1)6 h* u2 @& g- a" g' `1 o) g
]# X" Q. b0 g9 Y3 A) [4 v# f
end
3 P% ~5 j5 _0 _! B+ S# Z, u: V  m3 v
to update-credibility-list: p4 C- T' t, j) @
let i 02 v' D% o& |$ d( m# c- P
while[i < people]% [3 w4 @, c8 p. _6 `0 @; {
[+ W: L7 }  U. |
let j 0+ i4 i  N. o( C' C
let note 0
" Z+ _2 L  ]2 y$ X; N! G2 G5 slet k 08 t0 x4 R5 D4 x) @0 ]( {% S
;;
计作出过评价的邻居节点的数目3 x  c; I3 {! ]3 u
while[j < people]
. m; \. G. v& m- K6 B% ~1 o/ c[9 ^# F) Y5 \: W" p/ i
if (item j( [credibility] of turtle (i + 1)) != -1)9 V7 X$ l' A; q* s  |0 c
;;
判断是否给本turtle的评价质量做出过评价的节点
, e0 m" \; b* _8 M5 h+ r& V[set note (note + item j ([credibility]of turtle (i + 1))). s" {" x' I* P% z. \* r5 m6 T; ~
;;*(exp (-(people - 2)))/(people - 2))]
( s; D; e7 M+ s2 J, G# ^3 z: w
set k (k + 1), ~* p& V' I; O& D$ ~4 n
]
/ E# j! Z  G0 s6 b5 Nset j (j + 1)
8 D  h5 a0 R8 {' x: []
# m9 x" H4 X; _. d0 u4 Tset note (note *(exp (- (1 / k)))/ k)
  a  S0 G) A5 _7 C; `set credibility-list (replace-item i credibility-list note)* V/ k, F6 t0 F& c$ L4 W( O: N
set i (i + 1)+ s9 U0 U' r; {0 ^- I0 ~) K
]0 ~% H' k/ Y3 x9 u% V
end
! P6 _7 p/ |: {6 a6 l2 j. o6 Z
) B  l  O* V" R. y* vto update-global-reputation-list1 A/ S' ?% v: l) m/ E% ]' o7 V+ i% a" Z
let j 0
: s* p7 E& p( ?while[j < people]
2 B( h& N; V- B" ?[
2 F+ I/ s* _; N) Elet new 00 i) _# v9 H; Y9 Z: W/ i: n
;;
暂存新的一个全局声誉
3 u9 K. m) `0 blet i 0
  z; S, E! I+ ^let sum-money 0
" [0 N' u, e9 q& P$ T0 F- mlet credibility-money 0. M6 Y# H; i: R7 ]  X0 e
while [i < people]+ Q6 N+ h8 k& {: M. h* ^& t! s
[3 a9 Z! }) y+ q. R
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
. a4 Y  A" W7 [- [1 v1 `/ E( B5 |set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! e  ?2 M. K4 t% U
set i (i + 1)5 F/ i4 c; z/ [$ w/ i
]
4 x, [8 o3 L$ y: xlet k 0
9 U4 p2 `$ `" Z0 J- y! W# C3 mlet new1 0/ d+ E" Q3 ]: S7 E9 Z
while [k < people]& a, E6 A( a  s
[* W; R# |6 P5 z! r
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)5 h- P5 W! ~& o. v1 O( w/ [' U
set k (k + 1)9 J* {0 U9 x7 l  {; L
]
  l( X$ w% ?& Tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
# P7 l4 x0 c3 V: R& Y* [# j- Yset global-reputation-list (replace-item j global-reputation-list new)
# p4 D4 x2 j! ^, G8 d* s0 rset j (j + 1)
' Z( j. U7 Q8 N: Z3 z  ]; S' L]; s1 j3 }$ J* V/ |1 z
end
/ X1 l$ G1 H) t9 M  c) x: b' B0 j
9 M* O2 M; C7 R2 H4 c+ x0 n  e: U1 D0 ]: @3 l/ d6 Y5 ]

) }3 K, Y  N6 m. Pto get-color
: j8 ~% M/ t' [& o- U: s) E3 q7 ~  G4 b1 d5 Q4 r& ^8 H
set color blue
9 O1 s' r6 L/ E  Z, l0 A4 Z" U
end% ~/ g; q$ [7 v) V- I! {
* n5 y3 b  d- V" }1 o! b0 o$ m
to poll-class5 g! f# @+ y  A& [  j7 \
end
& O2 F& L) d1 |! a
8 I! w5 x. u8 Y* N5 T! \to setup-plot1( C. V9 y0 D7 z* {& d
5 k7 t, X! W, L  g
set-current-plot "Trends-of-Local-reputation"

$ w0 s! }& e. Y- q9 {( j; O# E6 M+ P  v+ C! Z) g
set-plot-x-range 0 xmax

- A. [* q9 `) \- k% ?3 ~( i
6 D; H0 i& F9 C) Kset-plot-y-range 0.0 ymax
3 C' Y; `! K- F! l& p7 U
end' t7 I8 e9 [0 w. }

2 u) K8 d9 e" f! b. d9 @7 b! Kto setup-plot2
+ q+ N  {9 l3 c/ k9 J# U* M6 H* t6 [& ^0 K
set-current-plot "Trends-of-global-reputation"
" ?, n0 z, e1 F4 S1 f* n# `
: p4 h/ Q6 L$ E: S8 s" A" g
set-plot-x-range 0 xmax
# {; c# l- s% L

+ @$ F+ Y# j+ {4 Qset-plot-y-range 0.0 ymax
8 r0 b0 r; N2 O0 y- J6 x
end- _  {# y" W7 v$ q0 y

; ]0 Y. A/ z9 `( ]to setup-plot3
* H5 ?8 s1 ?: r2 @
. ^, O! `  T& u1 U. Q" T* Xset-current-plot "Trends-of-credibility"

. @3 S2 _2 Z, P  N
5 d- s1 s, Q6 z$ H2 U7 Vset-plot-x-range 0 xmax

1 s- i7 F' g& }- r; C5 l+ O2 v7 n9 n: J" ^2 W# t; ~8 D
set-plot-y-range 0.0 ymax
; C) W! @* w8 i6 q  _+ L; K- Y
end- Z+ n7 J$ c6 ]6 e

+ u: x# N: v' G4 M) Lto do-plots0 I' c% t+ ~' N# d
set-current-plot "Trends-of-Local-reputation"
" v/ _7 I1 i9 W- W! ]4 f. p% Wset-current-plot-pen "Honest service"4 Q: a6 f0 ~. ~$ P6 v8 w# c
end
0 z8 }0 n7 V# L7 F5 p: G2 [
  u! `8 j* a, g$ k# o  t[ 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.! m7 f4 |$ Q7 N
& s$ g2 r0 m; ]% j5 c
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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