dilated.areas(spatstat)
dilated.areas()所属R语言包:spatstat
Areas of Morphological Dilations
区形态膨胀
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Computes the areas of successive morphological dilations.
计算领域的连续形态膨胀。
用法----------Usage----------
dilated.areas(X, r, W=as.owin(X), ..., constrained=TRUE, exact = FALSE)
参数----------Arguments----------
参数:X
Object to be dilated. A point pattern (object of class "ppp"), a line segment pattern (object of class "psp"), or a window (object of class "owin").
对象进行扩张。点模式(类的对象"ppp"),线段模式(类的对象"psp"),或一个窗口(类的对象"owin")。
参数:r
Numeric vector of radii for the dilations.
数字矢量半径的扩张。
参数:W
Window (object of class "owin") inside which the areas will be computed, if constrained=TRUE.
窗口(类"owin")内的区域将被计算对象,如果constrained=TRUE。
参数:...
Ignored.
忽略。
参数:constrained
Logical flag indicating whether areas should be restricted to the window W.
逻辑标志指示的区域是否应仅限于窗口W。
参数:exact
Logical flag indicating whether areas should be computed using analytic geometry (which is slower but more accurate). Currently available only when X is a point pattern.
逻辑标志指示的区域是否应使用解析几何计算(这是速度较慢,但更准确)。目前仅X是一个点的模式。
Details
详细信息----------Details----------
This function computes the areas of the dilations of X by each of the radii r[i]. Areas may also be computed inside a specified window W.
该函数计算的区域的伸缩X每个半径r[i]。区还可以计算指定的窗口内W。
The morphological dilation of a set X by a distance r > 0 is the subset consisting of all points x such that the distance from x to X is less than or equal to r.
X的距离r > 0是所有的点的子集组成的x等的距离xX是小于一组的形态扩张或等于r。
When X is a point pattern, the dilation by a distance r is the union of discs of radius r centred at the points of X.
当X是一个点的模式,扩张的距离r是工会的光盘的半径r集中点的X。
The argument r should be a vector of nonnegative numbers.
参数r应该是一个矢量的非负数。
If exact=TRUE and if X is a point pattern, then the areas are computed using analytic geometry, which is slower but much more accurate. Otherwise the computation is performed using distmap.
如果exact=TRUE和X是一个点的模式,然后等领域的使用解析几何,这是速度较慢,但更准确的计算。否则,计算是使用distmap的。
To compute the dilated object itself, use dilation.
要计算扩张的对象本身,使用dilation。
(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>
and Rolf Turner
<a href="mailto:r.turner@auckland.ac.nz">r.turner@auckland.ac.nz</a>
参见----------See Also----------
owin, as.owin, dilation, eroded.areas
owin,as.owin,dilation,eroded.areas
实例----------Examples----------
X <- runifpoint(10)
a <- dilated.areas(X, c(0.1,0.2), W=square(1), exact=TRUE)
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
注1:为了方便大家学习,本文档为生物统计家园网机器人LoveR翻译而成,仅供个人R语言学习参考使用,生物统计家园保留版权。
注2:由于是机器人自动翻译,难免有不准确之处,使用时仔细对照中、英文内容进行反复理解,可以帮助R语言的学习。
注3:如遇到不准确之处,请在本贴的后面进行回帖,我们会逐渐进行修订。
|