NCEP.PartialSpeed(RNCEP)
NCEP.PartialSpeed()所属R语言包:RNCEP
Calculate flow-assistance according to equation 'PartialSpeed'
计算流量的援助根据式PartialSpeed“
译者:生物统计家园网 机器人LoveR
描述----------Description----------
This function calculates flow-assistance according to equation PartialSpeed and determines the speed of forward and sideways movement if an animal behaves according to the rules of equation PartialSpeed.
此函数计算流量的援助根据等式PartialSpeed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PartialSpeed规则。
用法----------Usage----------
NCEP.PartialSpeed(u, v, direction, airspeed, f=0.5,...)
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:airspeed
The animal's speed relative to the flow in meters per second.
动物的相对速度的流量单位为米每秒。
参数:f
A numeric value between zero and one describing the proportion of the lateral component of the flow for which the animal will compensate.
零和一个描述的横向分量的流动物将补偿的比例之间的数值。
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 PartialSpeed. Equation PartialSpeed stipulates that the animal compensates for a proportion (specified by f) of the flow lateral to the preferred direction by altering its heading and speed relative to the fixed Earth (i.e. groundspeed). If, with its given airspeed, the animal is incapable of compensating for the specified proportion of the lateral component of the flow, the equation produces no real solution.
这个函数计算流量援助和正向和侧向运动根据方程PartialSpeed。公式PartialSpeed规定该动物补偿的比例(指定由f)的流动横向优选direction通过改变它的航向和速度相对于固定的地球(即地面速度)。如果给定airspeed,动物是不能指定的比例的横向分量的流量的补偿,方程产生没有真正的解决方案。
Setting f to zero specifies no compensation (cf. link{NCEP.Tailwind}), while setting f to one specifies complete compensation (cf. link{NCEP.Airspeed}.
设置指定f零补偿(参见link{NCEP.Tailwind}),而f一个指定完整的补偿(参见link{NCEP.Airspeed}。
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。
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