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R语言 spatstat包 fitted.ppm()函数中文帮助文档(中英文对照)

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发表于 2012-9-30 13:29:43 | 显示全部楼层 |阅读模式
fitted.ppm(spatstat)
fitted.ppm()所属R语言包:spatstat

                                         Fitted Conditional Intensity for Point Process Model
                                         合身的条件强度点过程模型

                                         译者:生物统计家园网 机器人LoveR

描述----------Description----------

Given a point process model fitted to a point pattern, compute the fitted conditional intensity of the model at the points of the pattern, or at the points of the quadrature scheme used to fit the model.
模式装到一个点一个点过程模型,模型的拟合条件强度的计算点的模式,或在该点的正交方案,以适应模型。


用法----------Usage----------


  ## S3 method for class 'ppm'
fitted(object, ..., type="lambda", dataonly=FALSE,
  drop=FALSE, check=TRUE, repair=TRUE)



参数----------Arguments----------

参数:object
The fitted point process model (an object of class "ppm")  
拟合点过程模型(一个类的对象"ppm")


参数:...
Ignored.  
忽略。


参数:type
String (partially matched) indicating whether the fitted value is the conditional intensity ("lambda") or the trend ("trend").  
字符串(部分匹配)的拟合值是否是有条件的强度("lambda")或趋势("trend")的。


参数:dataonly
Logical. If TRUE, then values will only be computed at the points of the data point pattern. If FALSE, then values will be computed at all the points of the quadrature scheme used to fit the model, including the points of the data point pattern.  
逻辑。如果TRUE,然后值才会被计算在该点的数据点模式。如果FALSE,那么值将被计算在所有点的正交方案,以适应模型,包括数据点图案的点。


参数:drop
Logical value determining whether to delete quadrature points that were not used to fit the model.  
逻辑值,确定是否删除不使用的正交点,拟合模型。


参数:check
Logical value indicating whether to check the internal format of object. If there is any possibility that this object has been restored from a dump file, or has otherwise lost track of the environment where it was originally computed, set check=TRUE.   
逻辑值,该值指示是否要检查的内部格式object。如果有任何可能,这个对象已经从dump文件中恢复,或以其他方式失去它最初被计算的环境中,设置check=TRUE。


参数:repair
Logical value indicating whether to repair the internal format of object, if it is found to be damaged.   
逻辑值,该值指示是否要修复的内部格式object,如果它被发现损坏。


Details

详细信息----------Details----------

The argument object must be a fitted point process model (object of class "ppm"). Such objects are produced by the  model-fitting algorithm ppm).
参数object必须是一个安装点过程模型(对象类"ppm"“)。这样的对象模型的拟合算法ppm)。

This function evaluates the conditional intensity lambdahat(u,x) or spatial trend bhat(u) of the fitted point process model for certain locations u, where x is the original point pattern dataset to which the model was fitted.
此功能有条件的强度lambdahat(u,x)或空间趋势bhat(u)点过程模型的拟合某些地方u,其中x是原来的点模式数据的模型进行评估适合了。

The locations u at which the fitted conditional intensity/trend is evaluated, are the points of the quadrature scheme used to fit the model in ppm. They include the data points (the points of the original point pattern dataset x) and other “dummy” points  in the window of observation.
的位置u的拟合有条件的强度/趋势进行评估,是分的积分方案,以适应模型在ppm。他们包括数据点(原点模式的数据集x)和其他“虚拟”的窗口中观察点的点。

The argument drop is explained in quad.ppm.
在drop的参数quad.ppm解释。

Use predict.ppm to compute the fitted conditional intensity at other locations or with other values of the explanatory variables.
使用predict.ppm的来计算拟合在其它位置,或与其他的解释变量的值的有条件强度。


值----------Value----------

A vector containing the values of the fitted conditional intensity or (if type="trend") the fitted spatial trend.
一个向量,包含的值的拟合有条件的强度或(如果type="trend")的拟合空间趋势。

Entries in this vector correspond to the quadrature points (data or dummy points) used to fit the model. The quadrature points can be extracted from object by union.quad(quad.ppm(object)).
此向量中的条目相对应的正交点(数据或虚拟点)用于以适应模型。正交分,可以提取objectunion.quad(quad.ppm(object))。


(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>




参考文献----------References----------

Residual analysis for spatial point processes (with discussion). Journal of the Royal Statistical Society, Series B 67, 617&ndash;666.

参见----------See Also----------

ppm.object, ppm, predict.ppm
ppm.object,ppm,predict.ppm


实例----------Examples----------


    data(cells)
    str <- ppm(cells, ~x, Strauss(r=0.15))
    lambda <- fitted(str)

    # extract quadrature points in corresponding order[提取正交点相应的命令]
    quadpoints <- union.quad(quad.ppm(str))

    # plot conditional intensity values[图有条件的强度值]
    # as circles centred on the quadrature points [作为圆心上的正交点]
    quadmarked <- setmarks(quadpoints, lambda)
    plot(quadmarked)

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。
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