A dataset consisting of 239 observations on wind direction in radians (original measurements were in 10s of degrees), measured at Saturna Island, British Columbia, Canada during October 1-10, 2016 (obtained from Environment Canada website). There was a severe storm during October 4-7, which caused significant fluctuations among the wind directions. As a result the angular data show a clear multimodality.
data(wind)A data frame with 239 rows and 2 columns; the column "angle" provides the angular direction (in radian) and the column day provides the days on which the data points were collected (ranges between 1-10, corresponding to October 1-10, 2016).