R: Create a Windrose Object

as.windrose {oce} | R Documentation

## Create a Windrose Object

### Description

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

### Usage

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

### Arguments

`x` | The x component of wind speed (or stress) or an object of class `met` (see met), 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.

### Value

A windrose object, with `data` slot containing

Item | Meaning
`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)

### Author(s)

Dan Kelley, with considerable help from Alex Deckmyn.

### See Also

Other things related to windrose data: `[[,windrose-method`, `[[<-,windrose-method`, `plot,windrose-method`, `summary,windrose-method`, `windrose-class`

### Examples

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

[Package oce version 1.2-0 Index]