Graphics

Histograms in Polar Coordinates

A rose plot is a histogram created in a polar coordinate system. For example, consider samples of the wind direction taken over a 12-hour period.

• wdir = [45 90 90 45 360 335 360 270 335 270 335 335];
  

To display this data using the rose function, convert the data to radians, then use the data as an argument to the rose function. Increase the LineWidth property of the line to improve the visibility of the plot (findobj).

• wdir = wdir * pi/180;
  rose(wdir)
  hline = findobj(gca,'Type','line');
  set(hline,'LineWidth',1.5)
  

The plot shows that the wind direction was primarily 335° during the 12-hour period.

Histograms

Specifying Number of Bins

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