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首页NetLogo 4.0 beta7 用户手册:探索与编程指南
NetLogo 4.0 beta7 用户手册:探索与编程指南
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更新于2024-08-01
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"NetLogo-手冊"
NetLogo是一款开源的多agent系统建模语言和环境,主要用于社会科学、经济学、生物学以及计算机科学等领域的复杂系统研究。它的设计目标是易用性和可扩展性,使得研究人员和教育工作者能够创建复杂的模型,模拟群体行为和社会动态。
NetLogo的主要特点包括:
1. **图形界面**:NetLogo提供了一个直观的图形用户界面,用户可以通过拖拽和设置参数来构建模型。
2. **编程语言**:NetLogo有自己的编程语言,语法简洁,适合初学者学习,同时也支持高级功能,满足专业建模需求。
3. **多agent模拟**:NetLogo的核心是agent-based modeling(基于代理的建模),每个agent都有独立的行为和状态,它们之间的交互形成复杂的系统动态。
4. **可视化**:强大的绘图功能使用户可以实时观察模型运行过程,理解模型的行为和结果。
5. **实验和数据收集**:NetLogo支持设定实验参数并进行多次运行,自动收集数据,便于分析和比较。
6. **网络和分布式计算**:NetLogo可以用于构建分布式系统,例如计算机HubNet,允许用户通过网络控制和交互模型中的个体agent。
该手册详细列出了NetLogo各个版本的新特性,例如:
- **版本4.0 beta 7**:即将发布的新版本,可能包含性能提升、新功能和错误修复。
- **版本3.1.4**(2007年2月):可能包含了之前的错误修复和小改进。
- **版本3.0**(2005年9月):可能是引入了重大更新或新功能的版本。
- **版本2.0**(2003年12月):这个版本可能标志着NetLogo的一个重要转折点,可能增加了对3D模型的支持。
手册还提到了NetLogo依赖的一些第三方库,如:
1. **Mersenne Twister Fast**:一种高效的随机数生成器。
2. **Colt**:数学和统计库,用于数值计算。
3. **Quaqua**:提供了与操作系统更一致的GUI外观。
4. **JHotDraw**:一个用于绘制和编辑图形的框架。
5. **MovieEncoder**和**JpegImagesToMovie**:可能用于将模拟过程记录为视频或序列图片。
6. **JOGL**:Java绑定的OpenGL库,用于3D图形渲染。
7. **Matrix3D**:3D矩阵运算库。
8. **ASM**:字节码操作和分析库。
9. **Log4j**:日志记录框架,用于调试和记录程序信息。
此外,手册还列出了系统需求,涵盖了不同平台(如Windows、MacOS X、其他平台)的应用要求,以及保存的applets和3D视图的特定需求。同时,手册提供了已知问题和bug的列表,帮助用户识别和解决问题。
最后,手册鼓励用户通过官方网站和反馈渠道与开发者联系,提出问题和建议,促进NetLogo的持续改进和发展。
Table of Contents
NetLogo Dictionary
last................................................................................................................................273
layout−circle..................................................................................................................273
__layout−magspring......................................................................................................274
layout−radial..................................................................................................................275
layout−spring.................................................................................................................275
layout−tutte...................................................................................................................276
left lt..............................................................................................................................277
length............................................................................................................................277
let..................................................................................................................................277
link.................................................................................................................................277
link−heading..................................................................................................................278
link−length.....................................................................................................................278
link−set..........................................................................................................................278
links...............................................................................................................................278
links−own <link−breeds>−own......................................................................................279
list..................................................................................................................................279
ln...................................................................................................................................279
log.................................................................................................................................279
loop...............................................................................................................................280
lput................................................................................................................................280
M.........................................................................................................................................280
map...............................................................................................................................280
max...............................................................................................................................281
max−one−of..................................................................................................................281
max−pxcor max−pycor..................................................................................................281
mean.............................................................................................................................282
median..........................................................................................................................282
member?.......................................................................................................................282
min................................................................................................................................283
min−one−of...................................................................................................................283
min−pxcor min−pycor....................................................................................................283
mod...............................................................................................................................283
modes...........................................................................................................................284
mouse−down?...............................................................................................................284
mouse−inside?..............................................................................................................284
mouse−patch................................................................................................................284
mouse−xcor mouse−ycor..............................................................................................285
move−to........................................................................................................................285
movie−cancel................................................................................................................285
movie−close..................................................................................................................285
movie−grab−view movie−grab−interface......................................................................286
movie−set−frame−rate..................................................................................................286
movie−start...................................................................................................................286
movie−status.................................................................................................................286
my−<breeds> my−links.................................................................................................287
my−in−<breeds> my−in−links.......................................................................................287
my−out−<breeds> my−out−links...................................................................................287
NetLogo 4.0beta7 User Manual
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Table of Contents
NetLogo Dictionary
myself............................................................................................................................288
N.........................................................................................................................................288
n−of...............................................................................................................................288
n−values........................................................................................................................289
neighbors neighbors4....................................................................................................289
<breed>−neighbors link−neighbors...............................................................................289
<breed>−neighbor? link−neighbor?..............................................................................290
netlogo−applet?............................................................................................................290
netlogo−version.............................................................................................................290
new−seed......................................................................................................................290
no−display.....................................................................................................................291
nobody..........................................................................................................................291
no−links.........................................................................................................................291
no−patches...................................................................................................................292
not.................................................................................................................................292
no−turtles......................................................................................................................292
O.........................................................................................................................................292
of...................................................................................................................................292
one−of...........................................................................................................................293
or...................................................................................................................................293
other..............................................................................................................................293
other−end......................................................................................................................293
out−<breed>−neighbor? out−link−neighbor?................................................................294
out−<breed>−neighbors out−link−neighbors................................................................294
out−<breed>−to out−link−to..........................................................................................295
output−print output−show output−type output−write.....................................................295
P..........................................................................................................................................295
patch.............................................................................................................................295
patch−ahead.................................................................................................................296
patch−at........................................................................................................................296
patch−at−heading−and−distance..................................................................................296
patch−here....................................................................................................................297
patch−left−and−ahead patch−right−and−ahead...........................................................297
patch−set......................................................................................................................297
patches.........................................................................................................................298
patches−own.................................................................................................................298
pcolor............................................................................................................................298
pen−down pd pen−erase pe pen−up pu.......................................................................298
pen−mode.....................................................................................................................299
pen−size........................................................................................................................299
plabel............................................................................................................................299
plabel−color...................................................................................................................299
plot................................................................................................................................300
plot−name.....................................................................................................................300
plot−pen−exists?...........................................................................................................300
plot−pen−down plot−pen−up........................................................................................300
plot−pen−reset..............................................................................................................300
NetLogo 4.0beta7 User Manual
xv
Table of Contents
NetLogo Dictionary
plotxy.............................................................................................................................301
plot−x−min plot−x−max plot−y−min plot−y−max...........................................................301
position..........................................................................................................................301
precision........................................................................................................................301
print...............................................................................................................................302
pxcor pycor....................................................................................................................302
R.........................................................................................................................................302
random..........................................................................................................................302
random−float.................................................................................................................303
random−exponential random−gamma random−normal random−poisson....................303
random−pxcor random−pycor.......................................................................................304
random−seed................................................................................................................304
random−xcor random−ycor...........................................................................................305
read−from−string...........................................................................................................305
reduce...........................................................................................................................305
remainder......................................................................................................................306
remove..........................................................................................................................307
remove−duplicates........................................................................................................307
remove−item.................................................................................................................307
repeat............................................................................................................................307
replace−item.................................................................................................................308
report.............................................................................................................................308
reset−perspective rp.....................................................................................................308
reset−ticks.....................................................................................................................308
reset−timer....................................................................................................................309
reverse..........................................................................................................................309
rgb.................................................................................................................................309
ride................................................................................................................................309
ride−me.........................................................................................................................309
right rt............................................................................................................................310
round.............................................................................................................................310
run.................................................................................................................................310
runresult........................................................................................................................311
S..........................................................................................................................................311
scale−color....................................................................................................................311
self................................................................................................................................311
; (semicolon)..................................................................................................................312
sentence se...................................................................................................................312
set.................................................................................................................................312
set−current−directory....................................................................................................313
set−current−plot............................................................................................................313
set−current−plot−pen....................................................................................................313
set−default−shape........................................................................................................313
set−histogram−num−bars.............................................................................................314
__set−line−thickness.....................................................................................................314
set−plot−pen−color.......................................................................................................315
set−plot−pen−interval....................................................................................................315
NetLogo 4.0beta7 User Manual
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Table of Contents
NetLogo Dictionary
set−plot−pen−mode......................................................................................................315
set−plot−x−range set−plot−y−range.............................................................................315
setxy..............................................................................................................................315
shade−of?.....................................................................................................................316
shape............................................................................................................................316
shapes..........................................................................................................................316
show..............................................................................................................................317
show−turtle st................................................................................................................317
shuffle...........................................................................................................................317
sin.................................................................................................................................317
size................................................................................................................................318
sort................................................................................................................................318
sort−by..........................................................................................................................318
sprout sprout−<breeds>................................................................................................319
sqrt................................................................................................................................319
stamp............................................................................................................................319
stamp−erase.................................................................................................................320
standard−deviation........................................................................................................320
startup...........................................................................................................................320
stop...............................................................................................................................320
subject...........................................................................................................................321
sublist substring............................................................................................................321
subtract−headings.........................................................................................................321
sum...............................................................................................................................322
T..........................................................................................................................................322
tan.................................................................................................................................322
thickness.......................................................................................................................322
tick.................................................................................................................................322
tick−advance.................................................................................................................322
ticks...............................................................................................................................323
tie..................................................................................................................................323
tie−mode.......................................................................................................................323
timer..............................................................................................................................324
to...................................................................................................................................324
to−report........................................................................................................................324
towards..........................................................................................................................325
towardsxy......................................................................................................................325
turtle..............................................................................................................................325
turtle−set.......................................................................................................................325
turtles............................................................................................................................326
turtles−at <breeds>−at..................................................................................................326
turtles−here <breed>−here...........................................................................................326
turtles−on <breeds>−on................................................................................................327
turtles−own <breeds>−own...........................................................................................327
type...............................................................................................................................328
U.........................................................................................................................................328
undirected−link−breed...................................................................................................328
NetLogo 4.0beta7 User Manual
xvii
Table of Contents
NetLogo Dictionary
untie..............................................................................................................................329
uphill uphill4..................................................................................................................329
user−directory...............................................................................................................329
user−file........................................................................................................................330
user−new−file................................................................................................................330
user−input.....................................................................................................................330
user−message..............................................................................................................330
user−one−of..................................................................................................................331
user−yes−or−no?..........................................................................................................331
V..........................................................................................................................................331
variance.........................................................................................................................331
W.........................................................................................................................................331
wait................................................................................................................................331
watch.............................................................................................................................332
watch−me......................................................................................................................332
while..............................................................................................................................332
who...............................................................................................................................332
with................................................................................................................................333
<breed>−with link−with.................................................................................................333
with−max.......................................................................................................................333
with−min........................................................................................................................334
with−local−randomness................................................................................................334
without−interruption.......................................................................................................334
word..............................................................................................................................335
world−width world−height..............................................................................................335
wrap−color....................................................................................................................335
write...............................................................................................................................336
X..........................................................................................................................................336
xcor...............................................................................................................................336
xor.................................................................................................................................336
Y..........................................................................................................................................336
ycor...............................................................................................................................337
?..........................................................................................................................................337
?, ?1, ?2, ?3, ................................................................................................................337
NetLogo 4.0beta7 User Manual
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