NCEP.Groundspeed(RNCEP)
NCEP.Groundspeed()所属R语言包:RNCEP
Calculate flow-assistance according to equation 'Groundspeed'
计算流动援助式“地速”
译者:生物统计家园网 机器人LoveR
描述----------Description----------
This function calculates flow-assistance according to equation Groundspeed and determines the speed of forward and sideways movement if an animal behaves according to the rules of equation Groundspeed.
此函数计算流援助根据方程地面速度,并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地速。
用法----------Usage----------
NCEP.Groundspeed(u, v, direction, groundspeed,...)
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:groundspeed
The desired groundspeed (i.e. speed relative to the fixed Earth) of the animal in meters per second.
所需的地面速度(即速度相对于地球固定的)的动物的单位为米每秒。
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 Groundspeed. Equation Groundspeed stipulates that an animal maintains the specified groundspeed in the given direction by altering its airspeed and heading. Note that, as a result of these assumptions, flow-assistance degrades from optimum as the tailwind component increases beyond the specified groundspeed and forward movement remains constant at the speed specified by groundspeed.
这个函数计算流量援助和正向和侧向运动方程地面速度。地面速度方程规定,动物保持指定的groundspeed在给定的direction通过改变它的飞行速度和航向。需要注意的是,作为一个结果,这些假设,从作为顺风分量增大超过最佳流协助降低指定的groundspeed和,向前运动恒定保持在指定的速度由groundspeed。
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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