How to Import data from excel and use them to Plot windrose instead?
Example, {{Strength, Angle(degrees)}..}
data = {{11.84,24.70}, {13.64,0}, {14.11,24.70}, {11.92,16.20}, {7.95,337.10},
{8.34,326.60}, {7.85,335.40}, {8.90,6.30}, {10.43,338.40}, {10.36,325.60},
{10.93,332.00}, {14.78,318.20}, {14.30,345.30}};
$0$ is North
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