not recommended! alculate resultant mean wind speed and resultant mean wind direction. especially used in tapply(). this calc is sometimes confusing. better to calc step by step. in: a character vector with wind speed and direction separated with semi colon ';'. out: a chracter vector with resultant mean wind speed and resultant mean direction separated with semi colon ';'.

mf_windmean2(wswd, na.rm = TRUE)

mean

Examples