R: Create a Windrose Object

as.windrose {oce}

R Documentation

Create a Windrose Object

Create a wind-rose object, typically for plotting with plot,windrose-method.

as.windrose(x, y, dtheta = 15, debug = getOption("oceDebug"))

`x`	The x component of wind speed (or stress) or an object of class `met` (see `met-class`), in which case the `u` and `v` components of that object are used for the components of wind speed, and `y` here is ignored.
`y`	The y component of wind speed (or stress).
`dtheta`	The angle increment (in degrees) within which to classify the data.
`debug`	A flag that turns on debugging. Set to 1 to get a moderate amount of debugging information, or to 2 to get more.

An object of windrose-class that contains the standard oce slots named data, metadata and proxessingLog. The data slot contains

n: the number of x values
x.mean: the mean of the x values
y.mean: the mean of the y values
theta: the central angle (in degrees) for the class
count: the number of observations in this class
mean: the mean of the observations in this class
fivenum: the fivenum vector for observations in this class (the min, the lower hinge, the median, the upper hinge, and the max)

Dan Kelley, with considerable help from Alex Deckmyn.

library(oce)
xcomp <- rnorm(360) + 1
ycomp <- rnorm(360)
wr <- as.windrose(xcomp, ycomp)
summary(wr)
plot(wr)

[Package oce version 1.0-1 Index]