rMaternII(spatstat)
rMaternII()所属R语言包:spatstat
Simulate Matern Model II
模拟Matern II型
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Generate a random point pattern, a simulated realisation of the Mat\'ern Model II inhibition process.
生成一个随机点模式,模拟垫\ERN II型抑制过程的实现。
用法----------Usage----------
rMaternII(kappa, r, win = owin(c(0,1),c(0,1)), stationary=TRUE)
参数----------Arguments----------
参数:kappa
Intensity of the Poisson process of proposal points. A single positive number.
建议点的泊松过程的强度。一个单正数。
参数:r
Inhibition distance.
抑制的距离。
参数:win
Window in which to simulate the pattern. An object of class "owin" or something acceptable to as.owin.
在模拟模式的窗口。类的一个对象"owin"或接受的as.owin的东西。
参数:stationary
Logical. Whether to start with a stationary process of proposal points (stationary=TRUE) or to generate the proposal points only inside the window (stationary=FALSE).
逻辑。是否启动一个平稳过程的建议点(stationary=TRUE)或产生的建议指出,只有在窗口内(stationary=FALSE“)。
Details
详细信息----------Details----------
This algorithm generates a realisation of Mat\'ern's Model II inhibition process inside the window win.
该算法生成一个窗口内的win垫\ERN的II型抑制过程的实现。
The process is constructed by first generating a uniform Poisson point process of “proposal” points with intensity kappa. If stationary = TRUE (the default), the proposal points are generated in a window larger than win that effectively means the proposals are stationary. If stationary=FALSE then the proposal points are only generated inside the window win.
构建的过程先产生一个统一的泊松点过程中的“建议”指出,强度kappa。如果stationary = TRUE(默认值),建议点是在一个窗口中产生大于win这实际上意味着是固定的建议。如果stationary=FALSE的建议只产生在窗口内win。
Then each proposal point is marked by an “arrival time”, a number uniformly distributed in [0,1] independently of other variables.
然后,每个建议点的标志是“到达时间”,一些均匀地分布在[0,1]独立于其他变量。
A proposal point is deleted if it lies within r units' distance of another proposal point that has an earlier arrival time. Otherwise it is retained. The retained points constitute Mat\'ern's Model II.
如果它位于内r单位的距离的另一项建议,有一个提前到来的时间点被删除的建议。否则,它被保留。保留点构成垫\ERN的II型。
The difference between Mat\'ern's Model I and II is the italicised statement above. Model II has a higher intensity for the same parameter values.
之间的差异垫\ERN的I型和II是斜体字的声明。模型II的具有更高的强度,相同的参数值。
值----------Value----------
The simulated point pattern (an object of class "ppp").
的模拟点模式(类的一个对象"ppp"“)。
(作者)----------Author(s)----------
Adrian Baddeley
<a href="mailto:Adrian.Baddeley@csiro.au">Adrian.Baddeley@csiro.au</a>
<a href="http://www.maths.uwa.edu.au/~adrian/">http://www.maths.uwa.edu.au/~adrian/</a>,
Ute Hahn,
and Rolf Turner
<a href="mailto:r.turner@auckland.ac.nz">r.turner@auckland.ac.nz</a>
参见----------See Also----------
rpoispp, rMatClust, rMaternI
rpoispp,rMatClust,rMaternI
实例----------Examples----------
X <- rMaternII(20, 0.05)
Y <- rMaternII(20, 0.05, stationary=FALSE)
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
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