# rose

## Purpose

Angle histogram.

## Synopsis

    rose(theta)
    rose(theta,n)
    rose(theta,x)
    [t,r] = rose(...)

## Description

`rose(theta)` plots an angle histogram for the angles in `theta`, which must be in radians. The angle histogram is a plot in polar coordinates of the number of theta points or samples within each of 20 angle bins.

`rose(theta,n)` where `n` is a scalar, uses `n` equally spaced bins in the range`[0, 2*pi]`.

`rose(theta,x)` where `x` is a vector, uses the bins specified in `x`. The values in `x` specify the center angle of each bin.

`[t,r] = rose(...)` returns the vectors `t` and `r` such that `polar(t,r)` is the histogram for the data. No plot is drawn.

## Examples

Create a rose plot for one year of simulated wind direction measurements:

    wind = 360*rand(365,1)
    rose(wind*pi/180,24)  %histogram every 15 degrees

## ``See Also

     compass, feather, hist, polar

(c) Copyright 1994 by The MathWorks, Inc.