anemones(spatstat)
anemones()所属R语言包:spatstat
Beadlet Anemones Data
小珠海葵数据
译者:生物统计家园网 机器人LoveR
描述----------Description----------
These data give the spatial locations and diameters of sea anemones (beadlet anemone Actinia equina) in a sample plot on the north face of a boulder, well above low tide level, at Quiberon (Bretagne, France) in May 1976.
这些数据的海葵(小珠海葵海葵马尾)的空间位置和直径的一块巨石上的The North Face在样地,低潮位以上,在基伯龙(Bretagne,法国)1976年5月。
The data were originally described and discussed by Kooijman (1979a). Kooijman (1979b) shows a hand-drawn plot of the original data. The data are discussed by Upton and Fingleton (1985) as Example 1.8 on pages 64–67.
最初的数据描述和讨论Kooijman(1979年)。 Kooijman(1979年b)显示了一个手绘的原始数据图。讨论的数据由厄普顿和芬格尔顿(1985)作为实施例1.8的网页上64-67。
The anemones dataset is taken directly from Table 1.11 of Upton and Fingleton (1985). The coordinates and diameters are integer multiples of an idiosyncratic unit of length. The boundary is a rectangle 280 by 180 units.
直接anemones数据集从表1.11厄普顿和芬格尔顿(1985)。的坐标和直径是一种特别的单元的长度的整数倍。边界是一个矩形280 180个单位。
用法----------Usage----------
data(anemones)
格式----------Format----------
anemones is an object of class "ppp" representing the point pattern of anemone locations. It is a marked point pattern with numeric marks representing anemone diameter. See ppp.object for details of the format.
anemones是类的一个对象"ppp"点模式的海葵位置。这是一个显着的点模式,用数字标记的海葵直径。见ppp.object的格式的详细信息。
单位----------Units----------
There is some confusion about the correct physical scale for these data. According to Upton and Fingleton (1985), one unit in the dataset is approximately 0.475 cm. According to Kooijman (1979a, 1979b) and also quoted by Upton and Fingleton (1985), the physical size of the sample plot was 14.5 by 9.75 cm. However if the data are plotted at this scale, they are too small for a rectangle of this size, and the appearance of the plot does not match the original hand-drawn plot in Kooijman (1979b). To avoid confusion, we have not assigned a unit scale to this dataset.
对这些数据的正确的物理规模有一些混乱。根据厄普顿和芬格尔顿(1985年),在数据集中的一个单位是约0.475厘米。根据Kooijman(,1979年,1979年b)和厄普顿和芬格尔顿(1985),还引述样地的物理尺寸为14.59.75厘米。然而,如果数据被绘制在这个规模,他们是太小了,这个尺寸的矩形,外观的图不符合原来的手工绘制的图Kooijman(1979年b)。为了避免混淆,我们还没有分配的单位规模,这个数据集。
源----------Source----------
Table 1.11 on pages 62–63 of Upton and Fingleton (1985), who acknowledge Kooijman (1979a) as the source.
第62-63页厄普顿和芬格尔顿(1985年),谁承认Kooijman(1979年)的源表1.11。
参考文献----------References----------
The description of point patterns. In Spatial and temporal analysis in ecology (ed. R.M. Cormack and J.K. Ord), International Cooperative Publishing House, Fairland, Maryland, USA. Pages 305–332.
Inference about dispersal patterns. Acta Biotheoretica 28, 149–189.
Spatial data analysis by example. Volume 1: Point pattern and quantitative data. John Wiley and Sons, Chichester.
实例----------Examples----------
data(anemones)
# plot diameters on same scale as x, y[图相同规模的直径为x,y]
plot(anemones, markscale=0.5)
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
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