Hi, Two weeks ago I have asked a question regarding the use of R for plotting lightning density maps. Thanks to you answers I was able to go one step further. Attached is the .R script and a sample of the data. The script is counting the number of lightning strikes in hexagons, and then is plotting the hexagons over Europe. To obtain the lightning density I need the area of the hexagons. Could you please help me on how to calculate the area of the hexagons? Also, how can I obtain the number of days with lightning in each hexagons?
Thank you very much. Cheers, Bogdan
lightning.r
Description: lightning.r
sample_data.csv
Description: sample_data.csv
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