What is a rose diagram and how do you make one by hand for striations and cescentric marks?
I know you draw a circle with the degress on it and mark the measurements on there, but how do you know how long the lines should be and what do you do when you have the same measurement a couple of times and what does clustering mean.Help please
Tags: cescentric, circle, couple, degress, diagram, hand, marks, mean, measurement, measurements, Rose, striations
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September 18th, 2010 at 1:06 pm
http://www.rockware.com/product/featuresLobby.php?id=206&category=510
http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=97
http://www.pazera-software.com/products/rozeta/
September 18th, 2010 at 2:03 pm
a rose diagram is basically a histogram drawn in a circle. In a histogram, the size of the line (or rectangle) for a range is proportional to the number of occurrences in that range. You make the line as long as the number of occurrences you have for the given range.
In a rose diagram, you do the same thing, except your range is in angles, and your base is the center of the circle rather than a line, so instead of rectangles, you make pie pieces. You make the pie piece one unit longer for each occurrence on a given range. Usually the diagram shows a bunch of concentric circles to mark the number of occurrences a given distance represents.
Clustering means that a lot of data falls in the same general range, in this particular situation.
Sometimes, the rose diagram is in percent of occurrences rather than total number of occurrences, but that is a simple conversion.