NCEP.M.Groundspeed(RNCEP)
NCEP.M.Groundspeed()所属R语言包:RNCEP
Calculate flow-assistance according to equation 'M.Groundspeed'
计算流量的援助根据式M.Groundspeed“
译者:生物统计家园网 机器人LoveR
描述----------Description----------
This function calculates flow-assistance according to equation M.Groundspeed and determines the speed of forward and sideways movement if an animal behaves according to the rules of equation M.Groundspeed.
此函数计算流量的援助根据方程M.Groundspeed和确定正向和侧向运动的速度,如果一种动物的行为根据方程规则M.Groundspeed。
用法----------Usage----------
NCEP.M.Groundspeed(u, v, direction, p.airspeed,...)
参数----------Arguments----------
参数:u
A numeric value indicating the U (i.e. zonal or east/west) flow component in meters per second, toward east being positive. Values must describe the direction into which the flow is moving.
的数值U(即纬向或东/西)流组件米每秒,向东为正的。值必须说明的流动方向移动。
参数:v
A numeric value indicating the V (i.e. meridional or north/south) flow component in meters per second, toward north being positive. Values must describe the direction into which the flow is moving.
一个数字值,V(即经向或北/南)流组件米每秒,向北为正的。值必须说明的流动方向移动。
参数:direction
A numeric value indicating the preferred direction of movement in degrees from North.
一个数字值,该值指示首选的运动方向从北以度。
参数:p.airspeed
A numeric value indicating the animal's preferred speed relative to the flow (i.e. airspeed) in meters per second. See Details.
一个数字值,该值指示动物的优选的速度相对于流(即空速)为米每秒。查看详细信息。
参数:...
Any extra arguments passed to the flow-assistance equation.
任何额外的参数传递的流动援助方程。
Details
详细信息----------Details----------
This function calculates flow-assistance and forward and sideways movement according to equation M.Groundspeed. Equation M.Groundspeed stipulates that an animal maintains a speed relative to the fixed Earth (i.e. groundspeed) in the specified direction equal to its preferred airspeed (i.e. p.airspeed) plus the component of the flow parallel to the preferred direction by altering its actual airspeed and heading. Note that, the actual airspeed that a animal must exhibit, following these assumptions, can be very different from its preferred airspeed.
这个函数计算流量援助和正向和侧向运动根据方程M.Groundspeed。公式M.Groundspeed规定的动物保持在指定direction等于其优选的空速(即p.airspeed)附加组件平行流的速度相对于地球固定的(即地面速度)首选direction通过改变它的实际空速和标题。请注意,这些假设,实际空速,动物必须具有可从其首选的空速很大的不同。
值----------Value----------
A data.frame containing flow-assistance ("fa"), the animal's forward speed ("forward.move" which includes the animal's own airspeed), the animal's sideways speed ("side.move" which includes the animal's own airspeed), the component of the flow parallel to preferred direction of movement("tailwind"), the component of the flow perpendicular to the preferred direction of movement ("sidewind"), the animal's speed relative to the flow ("airspeed"), and the animal's speed relative to the fixed Earth ("groundspeed") each in meters per second, presuming u, v, and airspeed were given in meters per second.
Adata.frame含有流援助(发),动物的前进速度(forward.move其中包括动物的自身空速),动物的侧身速度(的side.move其中包括动物自身的空速)成分,优选(顺风)的运动方向垂直的流动,该组件的优选的运动方向(sidewind),动物的速度相对于流(平行流空速),以及动物的速度相对于固定的地球(地面速度),每个单位为米每秒,假定u,v,和airspeed,以米为单位每秒。
(作者)----------Author(s)----------
Michael U. Kemp <a href="mailto:M.U.Kemp@UvA.nl">M.U.Kemp@UvA.nl</a>
参考文献----------References----------
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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