[R] Problem with

Dries David dries-david at hotmail.com
Wed Dec 3 12:40:25 CET 2014

In my data set i have two variables: month (march or april) and wind direction (N,NE,E,SE,S,SW,W,NW). I have to know if there is a difference in wind direction between these months. What kind of test statistic should i use?
Kind regards
Dries David
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