finpines(spatstat)
finpines()所属R语言包：spatstat
Pine saplings in Finland.
芬兰的松树苗。
译者：生物统计家园网 机器人LoveR
描述----------Description----------
The data record the locations of 126 pine saplings in a Finnish forest, their heights and their diameters.
数据记录126松树苗在芬兰的森林，它们的高度和其直径的位置。
The dataset finpines is a marked point pattern containing the locations of the saplings marked by their heights and their diameters.
的数据集finpines是一个显着的点模式包含标记的树苗的高度，其直径的位置。
Sapling locations are given in metres (to six significant digits); heights are in metres (rounded to the nearest 0.1 metre, except in one case to the nearest 0.05 metres); diameters are in centimetres (rounded to the nearest centimetre).
米（六个有效数字）树苗的位置，高度，以米为单位（四舍五入至最接近的0.1米，除了一种情况到最近的0.05米），直径为厘米（四舍五入到最接近的厘米）。
The data were recorded by Professor Seppo Kellomaki, Faculty of Forestry, University of Joensuu, Finland, and subsequently massaged by Professor Antti Penttinen, Department of Statistics, University of Jyv\"askyl\"a, Finland.
由的塞波·Kellomaki教授，学院林业大学约恩苏，芬兰的数据记录，随后的统计，JYV \“askyl \”，芬兰的大学的安蒂Penttinen教授，按摩。
Originally the point locations were observed in polar coordinates with rather poor angular precision. Hence the coordinates are imprecise for large radius because of rounding errors: indeed the alignments can be observed by eye.
本来点的位置，观察在极坐标角精度比较差的。因此，坐标是不准确的，因为舍入误差大半径的路线确实可以用肉眼观察。
The data were manipulated by Prof Penttinen by making small angular perturbations at random. After this transformation, the original data (in a circular plot) were clipped to a square window, for convenience.
这些数据被操纵教授Penttinen小角度随机扰动。这一转变后，原始数据（在一个圆形的图）被剪切的正方形窗口，为方便起见。
Professor Penttinen emphasises that the data were intended only for initial experimentation. They have some strange features. For example, if the height is less than 1.3 metres then the diameter can be uncertain. Also there are some very close pairs of points. Some pairs of trees (namely (58,59), (78,79), (96,97) and (102,103)) violate the requirement that the interpoint distance should be greater than half the sum of their diameters.
Penttinen教授强调的数据仅用于初步试验。他们有一些奇怪的功能。例如，如果高度小于1.3米，则其直径可以是不确定的。也有一些非常接近双点。树（即（58,59），（78,79），（96,97）和（102,103））某些对违反要求INTERPOINT距离应大于它们的直径的一半的总和。
These data have subsequently been analysed by Van Lieshout (2004).
随后进行了分析，这些数据已经由范·利斯豪特（2004）。
用法----------Usage----------
data(finpines)
格式----------Format----------
Object of class "ppp" representing the point pattern of sapling locations marked by their heights and diameters. See ppp.object for details of the format.
类的对象"ppp"点模式的树苗标记的位置，它们的高度和直径。见ppp.object的格式的详细信息。
源----------Source----------
Prof Antti Penttinen
安蒂Penttinen教授
参考文献----------References----------
A J-function for marked point patterns. Research Report PNA-R0404, June 2004. Centrum voor Wiskunde en Informatica (CWI), Amsterdam, 2004.
实例----------Examples----------
data(finpines)
plot(unmark(finpines), main="Finnish pines: locations")
plot(finpines, which.marks="height", main="heights")
plot(finpines, which.marks="diameter", main="diameters")
plot(finpines, which.marks="diameter",
main="diameters to scale", markscale=1/200)
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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发表于 2012-9-30 13:29:23
