NCEP.NegFlowSpeed(RNCEP)
NCEP.NegFlowSpeed()所属R语言包:RNCEP
Calculate flow-assistance according to equation 'NegFlowSpeed'
计算流量的援助根据式NegFlowSpeed“
译者:生物统计家园网 机器人LoveR
描述----------Description----------
This function calculates flow-assistance according to equation NegFlowSpeed and determines the speed of forward and sideways movement if an animal behaves according to the rules of equation NegFlowSpeed.
此函数计算流量的援助根据等式NegFlowSpeed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NegFlowSpeed规则。
用法----------Usage----------
NCEP.NegFlowSpeed(u, v, direction, 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. For this function, direction is required but does not change the calculation of flow-assistance or the direction of movement. The argument is included for use with NCEP.flight.
一个数字值,该值指示首选的运动方向从北以度。对于这个函数,direction是必需的,但不改变流量计算援助或运动的方向。参数,包括使用NCEP.flight。
参数:airspeed
The animal's speed relative to the flow in meters per second. This value does not affect the calculation of flow-assistance, but does affect the forward and sideways movement of the animal.
动物的相对速度的流量单位为米每秒。此值不影响流援助的计算,但不影响的动物的前向和侧向运动。
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 NegFlowSpeed. Equation NegFlowSpeed considers one minus the speed of the flow (e.g. wind speed) as flow-assistance, therefore it can never produce positive flow-assistance values. It assumes that the animal applies its own airspeed in the opposite direction of the flow (e.g. wind direction).
这个函数计算流量援助和正向和侧向运动根据方程NegFlowSpeed。公式NegFlowSpeed认为一减流援助的流量(如风速)的速度,因此,它永远不可能产生积极的援助流动值。它假定该动物适用的流动相反的方向(例如风力方向)中的它自己的空速。
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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