Package 'openair'

windRose 143key.headerkey.footerkey.positionkeyDetailsdig.labstatisticpollutantannotateborderAdds additional text/labels above and/or below the scale key, respectively. Forexample, passing windRose(mydata, key.header = "ws") adds the additiontext as a scale header. Note: This argument is passed to drawOpenKey viaquickText, applying the auto.text argument, to handle formatting.see key.footer.Location where the scale key is to plotted. Allowed arguments currently include“top”, “right”, “bottom” and “left”.Fine control of the scale key via drawOpenKey. See drawOpenKey for furtherdetails.The number of signficant figures at which scientific number formatting is usedin break point and key labelling. Default 5.The statistic to be applied to each data bin in the plot. Options currentlyinclude “prop.count”, “prop.mean” and “abs.count”. The default “prop.count”sizes bins according to the proportion of the frequency of measurements. Similarly,“prop.mean” sizes bins according to their relative contribution to the mean.“abs.count” provides the absolute count of measurements in each bin.Alternative data series to be sampled instead of wind speed. The windRosedefault NULL is equivalent to pollutant = "ws".If TRUE then the percentage calm and mean values are printed in each panel.Border colour for shaded areas. Default is no border.... For pollutionRose other parameters that are passed on to windRose. ForwindRose other parameters that are passed on to drawOpenKey, lattice:xyplotand cutData. Axis and title labelling options (xlab, ylab, main) are passed toxyplot via quickText to handle routine formatting.For windRose data are summarised by direction, typically by 45 or 30 (or 10) degrees and by differentwind speed categories. Typically, wind speeds are represented by different width "paddles".The plots show the proportion (here represented as a percentage) of time that the wind is from acertain angle and wind speed range.By default windRose will plot a windRose in using "paddle" style segments and placing the scalekey below the plot.The argument pollutant uses the same plotting structure but substitutes another data series, definedby pollutant, for wind speed.The option statistic = "prop.mean" provides a measure of the relative contribution of each binto the panel mean, and is intended for use with pollutionRose.pollutionRose is a windRose wrapper which brings pollutant forward in the argument list, andattempts to sensibly rescale break points based on the pollutant data range by by-passing ws.int.By default, pollutionRose will plot a pollution rose of nox using "wedge" style segments andplacing the scale key to the right of the plot.It is possible to compare two wind speed-direction data sets using pollutionRose. There are manyreasons for doing so e.g. to see how one site compares with another or for meteorological modelevaluation. In this case, ws and wd are considered to the the reference data sets with which a second