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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:
: F( H. A9 N; z# ]" jto do-business
! L) k& n$ V& W& z; E  g/ q5 u+ s' t* }4 n rt random 360
! Q6 R( Q' Y: N& X' h1 g fd 1; ]& A) D; Y" Z. y  |  R* n9 x! e
ifelse(other turtles-here != nobody)[
6 @3 l9 R9 u4 T, X# v   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.
6 j$ G# ^9 V7 P& P( _" `   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
# c# W% r2 T# }; v1 k   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
9 C4 T8 K& o) m! x* _( _# _. O   set [trade-record-one-len] of self length [trade-record-one] of self
9 G& r) ^1 ^" Y3 \3 L$ a   set trade-record-current( list (timer) (random money-upper-limit))* A2 t0 V( s7 h* m2 `
8 c/ L* C  [" g5 R! H
问题的提示如下:
4 }' e4 V% ~! ~# p, [$ |9 p! t' Q* E$ ~% @1 ^$ t) t4 r
error while turtle 50 running OF in procedure DO-BUSINESS/ v: C& T: t6 g3 f8 o
  called by procedure GO
; |; ~, h0 U3 p5 NOF expected input to be a turtle agentset or turtle but got NOBODY instead.
8 N1 q# p) V& @7 e6 h" i! \
(halted running of go)' J& a+ d/ u# [

6 Y2 H  Q" {" w5 z- [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~~, a% z5 O9 l6 ^7 {$ t# r. D
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" s3 L% f3 p" ~
globals[
5 ^4 d. e) m: _1 rxmax
% r2 C; t) n( R8 ^$ O/ {ymax
# W" i: t' q. G4 P! d- Sglobal-reputation-list
. \/ V) R0 w. y! t& g8 p( N% V: \8 _' G7 t$ I/ l
;;
每一个turtle的全局声誉都存在此LIST6 K2 F7 _4 ?  _6 f" m1 U
credibility-list2 W  B( p* g, H" S, ^
;;
每一个turtle的评价可信度7 @" |2 o2 c  G% z; [9 {
honest-service4 n3 t: ^* ^) g
unhonest-service* P$ s- I- [, e, x3 Z* T
oscillation* b" s" ~$ X" R; f( ~' }. `* x( F1 n
rand-dynamic9 M! R6 ^& o  q/ i; K7 r
]! D2 s" l  K% i" _# J& i8 F8 Z

, N5 \. ~3 h6 }/ ]: W! h9 Lturtles-own[8 b& o3 @8 [+ \
trade-record-all! z! d. E; D* T3 b8 g. v$ [: o
;;a list of lists,
trade-record-one组成
2 _3 Y" @& H( i+ [- a: [2 M7 ktrade-record-one( ~! Y& r, q8 r! B7 O+ 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
. \& c4 `' H) _2 c& N$ N2 \9 C3 b0 Q- `" |1 u
;;[
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' n( N1 s& Z( p6 T6 E
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]4 H0 Z8 k* A% T( i2 A9 R
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list2 H% A( R4 E+ O# s  |/ k- B
neighbor-total
. T6 \6 h9 |: P: X;;
记录该turtle的邻居节点的数目( ^# q7 Z5 T; o( ], {# q
trade-time! W+ q  h; |. J
;;
当前发生交易的turtle的交易时间
' j0 L% [" x  w& M, I, w/ e( P. ]7 Aappraise-give
" J; J1 D. S; Q2 J4 k;;
当前发生交易时给出的评价, }! f1 M7 b6 W1 G! e
appraise-receive
4 Z  N% J# ^/ i1 V3 c* I" E;;
当前发生交易时收到的评价
) r) c* P& V2 ~, v. \appraise-time9 s# X' V% b1 D; d6 J/ J
;;
当前发生交易时的评价时间/ m3 W& f% |4 {3 p5 W3 ~) a
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
; R# A+ Z3 F7 s, Y: Wtrade-times-total
- u8 E& O% Q, ?+ W8 Q' F& \;;
与当前turtle的交易总次数2 T! G; T8 `7 |* `# Z% h3 w
trade-money-total% Z1 L' w! ~  J9 ?$ R
;;
与当前turtle的交易总金额! l4 b( h1 s5 n( C; \3 d8 `) V  d4 C
local-reputation
: E6 x' _& g5 B* @/ N7 O- ]global-reputation
$ {6 l) w7 m, Ucredibility% H+ _  j4 C5 b; Q, `3 c4 N
;;
评价可信度,每次交易后都需要更新
$ M/ m: q! e' z( g( tcredibility-all
- h4 H' d# a: q1 l) O;;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4 a* O7 Z4 A& ~5 Z% i3 @" Y* f5 W

" w+ l4 \9 l8 c3 A. c;;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
0 Z0 o* T: L# H, E) u: vcredibility-one/ e5 g) j% ^" U2 K" ^# e
;;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
0 d$ O, ?8 r2 Y4 I6 x- f, uglobal-proportion
, r  ~- P% f: D+ z+ k/ G3 h( A" p2 ?customer  v- B: [6 q2 p" y4 U
customer-no, l) ^( K, ]. F/ N! [0 M# d) m
trust-ok
- D3 w; J) [4 e$ I9 x- ntrade-record-one-len;;trade-record-one的长度" T" ^9 H8 \* R6 @9 o- s
]2 L7 W8 x% q/ C$ e; D. e; T$ V
* y; U2 x9 @9 i
;;setup procedure
6 B1 W4 O. i' X
. R- {/ x' l% a$ j4 Q' K+ L  r/ Lto setup4 g/ R* K  l1 y. M/ U

6 n7 w. E4 F! M- ~+ C: z# Q5 cca

, W0 k7 L0 T* s2 ]7 A* v, @
$ H8 F; \; J" o5 F$ k! Xinitialize-settings

" @4 E  \% |) d% p6 F# g4 I+ T- \" h; l
crt people [setup-turtles]

+ a; O: V- {" Y3 D% e0 d0 U0 a. f/ ^& A
reset-timer
9 G# O. Z! {2 ^. h0 y
+ |6 a  i, o6 _' g* y
poll-class

4 f7 V9 ]& D" _. @  m0 [/ l7 C' R" F& Z7 ^# s
setup-plots
3 z+ X, `. L5 D9 Q* M& E$ R

( l' C0 P' C2 s( @8 _do-plots
# e$ A" w. k6 v# l- |' d& ]
end
7 p- }" H$ a  m. `- w
& @9 b! ^5 r' S" j2 ]2 ^to initialize-settings
$ |' Y0 D; L/ C! h# R1 n$ H  y
6 V% b, b! a. n* Zset global-reputation-list []
6 d3 F* ~5 l: R1 Y! i

6 h1 v" A' Z2 iset credibility-list n-values people [0.5]
5 L8 y3 t9 n- i2 K4 m0 i, p+ V. o
+ k6 t- Y$ q6 ?6 u; I; i; k; X) o
set honest-service 0
, J, T) r' G6 h9 w1 |9 H

$ S$ e5 x& O; q2 ~  \! V7 u  eset unhonest-service 0

( ]9 `$ x( T" x, H9 o6 b* m7 r9 C
/ y& j& d$ b8 jset oscillation 0
9 g0 Q4 W$ `, a8 v2 `; Y) A

# A! D9 y7 E# h: gset rand-dynamic 0

! n) F% F4 T+ P  qend
5 x0 U* ?0 c+ L% \( X+ m# U( \
" C6 N$ J- [- ]# S% L; Rto setup-turtles - i& V. C0 f" L1 z
set shape "person"
% V! @" |$ f0 ?. k  V' B( i" Wsetxy random-xcor random-ycor) @( h. j/ c( ~! U
set trade-record-one []! {* o! f: N: S2 v1 K
# R, R  F& q6 R4 ]
set trade-record-all n-values people [(list (? + 1) 0 0)] $ T. i# X7 f9 A+ e. k
4 [5 z/ B( @4 z- ]- T
set trade-record-current []8 _; z$ B# D9 q7 ^
set credibility-receive []' g7 |$ D2 m, Y* A1 p* p
set local-reputation 0.5
; W. t3 m8 O  h) q8 Bset neighbor-total 0
0 C& T8 y7 W' y, [7 A: Tset trade-times-total 0' g7 b  w4 h3 ?0 M4 H* V2 l3 f: \
set trade-money-total 0
0 [4 m% a8 {/ b7 h" K+ vset customer nobody
4 x. O) W) Q  ^3 r! hset credibility-all n-values people [creat-credibility]
" k% V) ?* B' e2 [& G; W$ A2 mset credibility n-values people [-1]* S5 S  H* Q% D- b* q2 X; z( G
get-color
$ T0 {. h& O$ P- w

& k; I, t( b9 H8 n$ G- u  u& Nend, i% m! s2 j& m7 g% T! ?$ E
/ p+ k/ G  E+ f  [! T/ @7 Q
to-report creat-credibility
- o, r4 l$ G9 ]" y9 P: e, _report n-values people [0.5]' }/ A3 n& F4 L/ ?! I8 |
end
/ b0 u, R5 {9 i5 P4 \) B& G; N2 h0 Y6 {8 |# D% x# R; o% o
to setup-plots7 G7 [$ d" _+ M7 _9 Q; z; v

* O, B$ V8 J1 Z- i5 |% e% Uset xmax 30
  R7 ]6 `7 g3 Y; r- I

7 L, I2 J2 j  \' zset ymax 1.0
7 v) V8 A" ]: P; f! u( }# r

% v9 A: k4 h+ @/ R  {! S/ z% ?clear-all-plots

' }( f: e& z* s  o  Y' z. G* w1 s8 K4 T5 K* n3 g- {
setup-plot1
0 v, |6 K+ l8 S/ [. y

3 B1 x- \4 N. l; `, b$ W: @setup-plot2
8 X0 ], S* ^9 q6 M$ ]  S$ @5 e! U% W
2 e. n- x9 j/ y# ^+ H6 v) u
setup-plot3
% M; [) s0 o; W/ \7 x8 O
end
! Q  N+ l7 o& @* Y4 }% V/ E
+ O( r! E! j/ M5 Z$ _;;run time procedures+ U% y4 |( g( ^" ?1 a$ x% ^- _
* N% N% W' ?& t5 V5 \
to go& L- d9 h) F  Y4 @
+ V9 E+ h+ Q" p# x! T7 L
ask turtles [do-business]

, G2 W( |/ I$ }6 k9 _$ nend9 a5 L* e  Y& c# ^2 `' S  o

& M0 C, o( A: R( W: G2 g) Eto do-business & J! Q/ f8 x* i7 d# w; ^2 B  J

. ^4 q3 p. j0 X7 J! z4 ]/ O5 N* V. \! L2 T& Z4 K
rt random 360

0 s8 P; q# E1 _$ T
" Q9 l  p) x  Z$ n6 c8 h1 [fd 1
* A: g! S& x. `9 n
4 _/ S  }: Y, r3 B( @
ifelse(other turtles-here != nobody)[

$ {8 D) F& Y/ ]3 u- J7 F) k- W1 ?7 Y" H
set customer one-of other turtles-here
$ F: f2 d0 y7 g0 U/ M
' U+ m, J2 s# e" ?5 u
;; set [customer] of customer myself
4 {& p6 k5 V2 M; J: ^8 G
( a) [4 Z3 {0 z* q. u: D; o
set [trade-record-one] of self item (([who] of customer) - 1)
6 V. h! n2 a1 u/ p. Q[trade-record-all]of self
8 Y/ N  G/ a1 s;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

  h; b0 E* O, ^$ l
5 g- a  R4 V  A! o( jset [trade-record-one] of customer item (([who] of self) - 1)
: B' w0 O8 z8 A# B$ G0 p/ v[trade-record-all]of customer
) O$ G6 h# m9 w  V5 m
, B, t& l7 U* t3 C& {( t' B
set [trade-record-one-len] of self length [trade-record-one] of self

/ D) Z2 k0 c  ?$ `! ^' ~- G, |# k9 x, q5 X
set trade-record-current( list (timer) (random money-upper-limit))

+ T* l4 _1 y4 A4 B2 [, l5 z4 p
/ @* y  y) r# x( h4 D: I% _/ Rask self [do-trust]
) v% B& {$ ^' k* Y, `;;
先求ij的信任度
2 @- v$ u8 J1 q' k0 |
' N6 q; a0 J. nif ([trust-ok] of self). F) F- N1 _5 E
;;
根据ij的信任度来决定是否与j进行交易[
+ l  P% C4 ^" U: {# n1 g5 \ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself& p4 U. M0 W$ U6 G5 `; `

  l  H- j& h: d- R9 A7 G[
% E: u2 `, U$ M. Z" j' ~

% Y, Q0 u0 p& I* e, Q4 sdo-trade

9 N: y. B$ A3 u6 }5 s% @% D+ ~* Y" v3 G# ~$ R2 [9 ^
update-credibility-ijl
* u. q5 A: K; N% O$ k

9 J7 x7 ]2 d& A7 K! o6 {" mupdate-credibility-list
1 Y+ J8 e! |, w/ l9 x0 m
1 I1 K, D6 m( ]6 T) k

4 Q& V" n# J; f+ `3 U4 qupdate-global-reputation-list
+ c7 [, b$ B4 d( g/ V" O8 S

( w% L' s8 w1 u- d7 I* N& S6 ^( zpoll-class
  j! N5 ~. v% f) G
9 y. ~! A9 \, V5 n8 X0 ~
get-color
! D- ~% O4 R! |$ W+ b
0 s# Q2 g( z8 h; R( p
]]9 z) \, K. r* Y3 b$ d
# t  z0 E; V  l7 c# L$ Y6 f4 V5 V
;;
如果所得的信任度满足条件,则进行交易
' u+ G9 _& a! E/ J! V* P) Y$ h2 k8 O) d( {
[
8 O* n+ N* \2 `) J2 v) t- f) q

2 C9 S. o2 K- t% H! T/ I( G# R/ Wrt random 360

; n" \! e; [5 f% q7 L& U& w8 p5 T1 g1 g
fd 1
0 V. t# b/ U# h
; n; H2 |8 O8 n. \
]
8 C. d( p& w. l6 ~* u1 U  G
: H+ f! O- D) X
end
6 g2 V$ V% Z' e$ |

/ a, Y4 O; b4 h! Zto do-trust . t8 d& A4 W- G: P2 t6 {
set trust-ok False0 p" n; p5 P. P( `0 p

7 P1 ~5 d! K% b7 X  K0 s2 Y
* I6 y1 w) g8 `5 B
let max-trade-times 0
# Q& c  B. H: d9 kforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 d% a. k# J  {. }3 z
let max-trade-money 0
3 \% X1 f- d; B% ^foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]3 _. P3 _3 J9 ^; a- z
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
/ [" ^3 L' w6 b. `
; Q1 `4 J. a' P- @9 m1 I$ P" D# t! Y
0 s; R. Q6 D. s7 T8 F
get-global-proportion
8 B- A2 f* S5 i: J5 n) Wlet trust-value' S1 L. I6 }" P; V/ a9 e; R
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)

- O& w0 S5 [! ?0 aif(trust-value > trade-trust-value)1 @! K2 D( v6 Y6 S' ~9 n6 Y8 g
[set trust-ok true]3 C2 E6 v0 l/ J( W+ c5 ?, A
end  e/ K5 o: _2 C2 j; f  P

5 X- U& q% ~3 v1 z/ d. Q) rto get-global-proportion0 \$ W0 t0 M) @0 N- E! r2 q& E- n
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)0 {, {& u" ~. t+ B; t$ d8 c: z
[set global-proportion 0]
" k1 K1 t* N- u& n+ G! M' s9 ?6 W) S[let i 0
# \: X# B# c# n. m4 n: X9 tlet sum-money 0
4 u, Q" F9 H1 i: qwhile[ i < people]
, ?9 u; `, N% J; i* v[8 S  ~$ c+ k$ y) ^) Q8 e4 `6 A
if( length (item i
, t2 F- C' A. q5 f" \[trade-record-all] of customer) > 3 )
0 o; M5 z( H6 K2 W/ ~3 k
[
3 ?- d+ q. g! u6 cset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
! I' Z. ?, v; I2 F' ?/ W]
3 E! ~+ ]8 R' ]8 l/ |, l]# m  Q* a4 A& t
let j 0
1 y- ~- h$ K9 a7 Y* E8 Z, elet note 01 @' }" q; [2 ~+ k4 E* k7 |% i% a
while[ j < people]
2 Y3 i) S0 j9 q8 ?0 w& c[
4 K- j& a. P# p0 yif( length (item i+ C! m: _  t! n: ]9 ]8 m
[trade-record-all] of customer) > 3 )
( y, x8 B1 y% d0 ]/ L7 o5 p! B
[
9 `- h# w% S) w$ K9 G9 z3 _2 Eifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 u+ x. B, u5 o$ S3 b3 G1 w[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]" F! |( o, e2 C- J1 s! J
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' ?' L8 Z6 r* w* ]% Q]
* k5 a- s* Z  T1 Z! D& A5 o]
: z7 f: w& O  s6 [( }  Mset global-proportion note" E* I' s2 `3 S9 R, I* J8 s9 @3 X
]3 n* |% l4 E( a6 j+ t7 j' x/ }
end
$ T4 z; x5 m# }! b8 F4 C
5 \: ], `: ?8 S) r3 D$ Lto do-trade$ K$ O6 P9 |: I5 ]) a5 i0 [( u. g) z; f8 W
;;
这个过程实际上是给双方作出评价的过程
0 _1 n  i1 \: G8 V' W: C3 C6 vset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
6 [" V+ Q1 _6 l# c/ ~+ J, ]' c4 Hset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
" z$ S/ t. ~# [6 w% U& w! Nset trade-record-current lput(timer) trade-record-current. L3 _* o/ r  Y
;;
评价时间
" O. U$ C) t3 o, A9 |- G3 uask myself [7 a% k1 \! H& `
update-local-reputation
! [6 j, A! ?: x$ a5 R  Kset trade-record-current lput([local-reputation] of myself) trade-record-current& u% E8 v3 Q8 W( x& h, L5 H' \
]
7 _: t0 K( h/ T" Cset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
( b- H! m" L9 u3 ~) v;;
将此次交易的记录加入到trade-record-one/ \! c# e1 m- Y& F8 ~! f
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
% ?3 E" |9 `/ H9 b; |- [9 w+ }+ Ulet note (item 2 trade-record-current )! \: y' G, N& c# e. q# X" o
set trade-record-current7 ~9 g. a& v/ P0 F* Z
(replace-item 2 trade-record-current (item 3 trade-record-current))
( C- @6 ^0 K4 h# }0 P; a
set trade-record-current: m. ^( @& S0 a/ y7 u% C. H
(replace-item 3 trade-record-current note)9 P5 b# P" L0 Z( E' T/ K
6 [) q/ k& ]( {- [) G

- J3 x$ u6 W/ b9 I' Y! ]ask customer [
6 h6 {; g9 @7 g2 s: U( y' ^) @3 Gupdate-local-reputation
) f! C4 B" P: }% j8 r. }* z/ f0 Mset trade-record-current: m; H4 h) o% N" g" p9 d9 j% F
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

. g& j+ K! b% K( E4 q* b]' U4 m/ {! l3 o% [0 u$ I
8 S/ t8 S' J, e% P6 B/ i7 k8 |
; I* a6 l  D/ O1 A
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
' b) K! [6 ?0 w1 x! H, b

+ J# D  }8 b: `% ~# n* X7 y4 G) Z3 Y0 Oset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 P+ q, {; ~  @3 S* Y( C;;
将此次交易的记录加入到customertrade-record-all
& U$ f" [, L2 b& F- Gend
7 F7 u5 c; ^3 ?# }6 T- B
! I2 \8 ?9 i8 V1 N9 k6 V! b8 Jto update-local-reputation
+ J+ r' B' ?5 d$ R+ s, mset [trade-record-one-len] of myself length [trade-record-one] of myself
$ h7 q5 z! B# b' j! z: u' c
! E% X8 }# [. G/ m. c  Y9 D0 R: _  o$ x; q8 |" f: b5 q( x" M' v5 L
;;if [trade-record-one-len] of myself > 3
  m, p. b0 u9 {  r/ S" w
update-neighbor-total% H! h8 _- r9 z; a( M
;;
更新邻居节点的数目,在此进行
: d/ O( n- }* y& V) {let i 3
. z8 s* H  T. E+ j1 Clet sum-time 0
+ X  w6 E# F3 b4 {* [4 Nwhile[i < [trade-record-one-len] of myself]+ R$ G$ @$ _: u
[
* @$ H- ]  @/ kset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
3 b. A$ c" Q$ r( t: r1 zset i/ v) ]/ n, S. o& w" V" Y) @7 ^
( i + 1)
- v' W0 I$ M2 H: {: O0 o
]1 {- G  F& E: U! [2 A- p" [2 d
let j 33 ~% W' s- k$ a
let sum-money 0" E- J5 |* h7 X' C6 Q1 j% L1 N! v  r( v
while[j < [trade-record-one-len] of myself], [0 [- ^+ H  C
[6 U9 M9 N2 s% l# N8 {# Q8 d" h
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)
9 i% ]+ O+ ^: M+ Eset j
: k" _, q, a5 T, R( j + 1)
- J; D* }7 ^$ m$ [( Z
]
8 b5 p" e  U  jlet k 3' I" F2 `3 O% u& U' g
let power 01 d* k1 _4 x7 F- ^: e6 s; q) h- [
let local 0
) W! a! c7 ~* Twhile [k <[trade-record-one-len] of myself]
5 ]3 Y% p7 n, T  ?7 J2 k: N$ {7 R[: _5 T: X; ?6 ^0 ?6 H' w0 i
set local (local + (item 0 (item k [trade-record-one] of myself)) * (item 1 (item k [trade-record-one] of myself)) * (item 2 (item k [trade-record-one] of myself)) / sum-time / sum-money) $ T7 t; _2 c; o1 ]5 e& \
set k (k + 1)" M& Y7 O, n: z; A2 P
]1 D3 y9 \  T( o3 F9 d
set [local-reputation] of myself (local)7 J# r+ Z: |' H* |( |
end
" T1 u: U, T) g2 K0 X+ i5 V! h" n. N* Y& F9 ?+ `& ^% V; Q2 L+ L4 N
to update-neighbor-total0 b; @5 [0 _$ V2 G" S# G2 u

- y7 p+ j8 P' q/ m/ ?) f3 d- cif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
- R" h, G% k3 `- z; x6 |0 `0 T
; {5 w9 [6 d9 w' n6 J6 d  ]

' P9 x7 t! F  w# N, nend3 i$ h8 A% U  g1 Z# w/ y

/ n. {5 N/ u5 ?# @- ]: d- T4 Vto update-credibility-ijl * Z% C. Z0 |0 p5 Y; t/ H

5 B" T+ X1 \# ]8 n# Y  |) Y. K2 U# z* D;;
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。/ n& ]0 m6 c) |2 Y8 |, E- u
let l 0' ?- ?7 H1 u2 s: D
while[ l < people ]3 W$ H: R( W' w; N' a4 l
;;
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
) s4 X  |5 C% ]0 f- n% f[- w& ^! o) c1 u% s
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 N3 |' k& F/ ?if (trade-record-one-j-l-len > 3)/ H( o) X% j5 a" K
[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: J6 T& o) c' _
let i 3
3 o: a7 L* M2 z( ~$ o" L# n9 d  Q) {* Ulet sum-time 0
4 `1 S6 `) H+ g2 r& lwhile[i < trade-record-one-len]
) n2 H5 |6 \/ ?" k1 G( N[
  J. e  f* r1 e$ b. x# O& tset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )2 _/ U. J2 e0 b# b( g7 c4 T
set i3 P7 q6 `% X" L; y& ~+ i
( i + 1)

! Z% l+ ~" d- f8 V( O# X3 y1 \0 ?* G! q3 m]8 F0 m; V/ a/ h* H9 O" c
let credibility-i-j-l 0  \) L- t# `  z5 r9 X2 w0 d' e4 w
;;i
评价(jjl的评价)
) h: t7 E* T" X( X1 u% `let j 3, D# n$ u$ ?7 |# y/ v) s' h
let k 4: d/ _, x# D$ V/ y6 b
while[j < trade-record-one-len]& {  U( k9 \: L& D5 A
[
" G* E7 ^. @! L* F: Qwhile [((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# w8 K% z5 s5 {
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)4 B' j. ]9 {8 |0 _
set j! D2 R7 i7 W, l; C! _+ T
( j + 1)
. L, z  t8 c8 {5 e, R5 H* c+ z4 v& B
]
5 [, h8 [2 {0 x+ jset [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 )): L8 j% H7 Y8 G

; i: a" F# N$ }+ I$ V
' w" M' N0 p' h: P# ?0 S
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
9 o  J- u: Q+ K" C6 N4 c;;
及时更新il的评价质量的评价! K0 j2 f2 q# C, U/ h3 w5 l4 ]- d
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
) {* `3 r. D5 A7 J% d2 K; k8 cset l (l + 1)" ~: \1 q5 C. ]+ A) r, j  t
]
  {3 `+ Y; x5 o. F5 }end+ i  x# V& w( `
/ M0 D# P3 l1 K" X. Q$ [
to update-credibility-list/ l& ^  ]5 a% h1 W+ X( y6 T
let i 04 j+ q' Z5 _% H/ P, `" L/ F: h
while[i < people]
3 R$ A9 i& ~; a( G7 s[8 S: I/ r! U. T+ r! i0 t
let j 02 O" }' F8 w! p' p: H. g- _
let note 0$ o% S/ a2 z! H: @9 Y
let k 0
3 g$ h% b$ O% s' {3 k;;
计作出过评价的邻居节点的数目
1 s7 d+ N4 W. x/ Pwhile[j < people]
$ ~3 Z4 t1 C- L+ M3 m, `: n. j[
& ]/ s  {$ j% t2 g& a7 F. P$ jif (item j( [credibility] of turtle (i + 1)) != -1)
/ g. ^! a/ {7 Y8 c;;
判断是否给本turtle的评价质量做出过评价的节点
" p6 O1 K* q  j# {, D) S[set note (note + item j ([credibility]of turtle (i + 1)))5 O; i* B% a) l: d! A) o9 n) n9 h6 a
;;*(exp (-(people - 2)))/(people - 2))]

+ J$ R& s4 k, T4 d) e$ {" w& @set k (k + 1)
) a4 A" w" {  H& N5 K+ I]' [/ q! m3 X/ ]$ c# U- v- {, |
set j (j + 1)
8 x$ P' B* g7 V# X' L& h]
2 I  T- O9 {3 h0 Rset note (note *(exp (- (1 / k)))/ k)
( c+ h) G4 a$ B' e4 }set credibility-list (replace-item i credibility-list note)
' ~: f& l) f* }/ o8 Aset i (i + 1); o/ E2 u- k5 `; a2 Z
]* P) d8 k6 ^! z9 f8 E, l# @
end! c/ G4 s- k5 o9 ]

  T" H* E: F; E2 E0 y4 A8 ^to update-global-reputation-list
% e- I# e) p4 |! v# C" E$ K. blet j 0( l9 H2 D, ~6 }- s0 Z& P7 s
while[j < people]
6 _  D9 {/ ], a[% G  \0 @$ N8 U& E
let new 0. _) A$ {; [. _# q
;;
暂存新的一个全局声誉& \4 }' D$ d/ g- X9 b% X( C
let i 0% S8 C" c! M1 A8 ]8 R, w
let sum-money 0
7 A0 K% ~- k5 V; b% c5 @- B( L  ?let credibility-money 0$ {; l$ w2 ?) Q% i$ i- i( `
while [i < people]
* p& Z% F0 F& B2 I1 h[
, |1 d, l% J( e" Wset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))1 @" x" ]" M3 L
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
8 ?) [% o" w% h- }% rset i (i + 1)) ^5 _2 W6 z% O5 Q& t
]
3 L# z1 g6 N& k0 K1 U8 @let k 0
! g) V( n" D% Elet new1 0% V% P' L* r$ T, [% \, x
while [k < people]" m9 N+ Y0 f/ H: X' @0 d' I( U4 |
[
; {. l9 T1 D1 d6 P8 hset 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); M# J( I2 G" s
set k (k + 1)8 o2 S4 l7 ?( @
]  d! N; t$ Z  S% l1 o! |% e
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
+ [9 @  D  f7 x( K% H. Rset global-reputation-list (replace-item j global-reputation-list new)
% k) f: O. h/ [+ U  W6 Y: yset j (j + 1). z  b/ R! _* e1 l" T$ ~2 v
]
% _% k" P, [- P8 @% u9 c1 U9 D, e0 Iend
! c, Q6 ^4 E2 Q- s+ p) [) Z( s( A" u- f( C( U+ M( t$ t/ H

; _$ f7 O9 I( s. V/ F3 W
: s. K8 Z* D! y6 N: @+ Zto get-color& H+ s6 B1 u1 s% v
: G% o7 s  V4 r% P/ W
set color blue
" g* r4 Z, E' J4 K
end
5 w5 K" v. y# n' r4 g" Q* q+ Z
2 {& C$ [% X& F3 [7 Kto poll-class- t( a: s% V3 L% f# p0 F' R
end" A) H. Z/ Q/ }  }) f  }5 v. [

  |) g5 Z$ H; d! f/ ]0 Z' uto setup-plot1
, K0 d, ]  H' ]; c5 e" c5 n0 d. ^& }' T' o  D
set-current-plot "Trends-of-Local-reputation"
  K" }1 }7 X. o

6 e3 V. g7 W1 A# C" m$ i; A4 t8 {set-plot-x-range 0 xmax

- {7 N+ o3 n( B" O3 O: |3 ]0 p( N, x; p7 k. N/ W% e
set-plot-y-range 0.0 ymax
! B) t% C8 }+ `9 P4 b
end
! j# V' g* E1 u* C/ ]
3 z: t6 l, C. ]: l& S3 Vto setup-plot24 \4 u- y+ j2 ^2 k7 ~' k* p* \

( c/ r% E0 p( J2 Z% n& tset-current-plot "Trends-of-global-reputation"

6 e$ P% p: f5 F! k6 F6 v+ A0 [& N# w
set-plot-x-range 0 xmax
1 k: C' f- j6 N) V# O
/ T% k0 P; |4 L+ v- n6 B0 O4 K/ i
set-plot-y-range 0.0 ymax

; y6 h0 P6 R8 G$ a- s4 Vend
, K# a, `% O: D1 X$ g/ _8 M$ M8 M6 _2 E" r  J; G
to setup-plot3
5 f& f; R2 i) Y1 T
, e% d2 R- O  ^. ^8 v7 oset-current-plot "Trends-of-credibility"
. S* T, X; d3 u) _1 B, i

' [- [1 L7 x+ R0 i) ^# J7 gset-plot-x-range 0 xmax

7 G% K6 e4 B/ b5 p, K! r5 O5 D" ?5 \. |, ?' M3 e
set-plot-y-range 0.0 ymax

, ^1 F# N  Y1 K7 `1 s/ l* K  L5 A8 jend
& H4 ]" K  I# x3 u$ Y' e
/ @! n/ O7 n2 V* M' i& h" Ato do-plots
, }! d5 `' v4 a6 ?) H! ^6 O, ?set-current-plot "Trends-of-Local-reputation"
" O& w3 c; G5 P3 F2 v, Cset-current-plot-pen "Honest service"
7 q& e. d% W( m5 Z/ Vend' p, o0 y9 ?' _2 w9 m) d9 [

2 c3 K3 ~! v$ V1 P4 \[ 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.. w5 E6 V. |+ L! m* V  P

. A- r# r# o* L2 @" g. ?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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