Is there a way to fix the colour scale so it remains the same, for instance when producing multiple plots? I know once can use polarPlot(..., type = "year")
but I don't want a grid of graphs as I'm trying to create an animation (I have cross-listed this question under the Github repo issues).
library(openair)
library(dplyr)
library(lubridate)
polarPlot(filter(mydata, year(date) == 1999),
pollutant = "nox")
polarPlot(filter(mydata, year(date) == 2004),
pollutant = "nox")