ypos: Interpolation selecting the nearest neighbor

In raytracing: Rossby Wave Ray Tracing

Interpolation selecting the nearest neighbor

Description

This function get the position in a vector of a given latitute y.

Usage

ypos(y, lat, yk, mercator = FALSE)

Arguments

y	numeric value of one latitude
lat	numeric vector of latitudes from minor to major
yk	numeric vector to be approximated
mercator	Logical. Is it require to transform the final data in mercator coordinates? Default is FALSE.

Value

The position where the latitude y has the minor difference with lat

See Also

Other Interpolation: trin()

Examples

{
input <- system.file("extdata",
                     "uwnd.mon.mean_200hPa_2014JFM.nc",
                      package = "raytracing")
b <- betaks(u = input)
ykk <- rev(colMeans(b$betam))
ypos(y = -30, lat = seq(90, -90, -2.5), yk = ykk)

}

raytracing documentation built on June 7, 2022, 1:09 a.m.