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davidcarslaw
Tools for air quality data analysis
Hi; After I updated openair to version 2.6-5, when I try to use importTraj for my local data, I am geting an error like below. Before this version I was...
I installed the most recent version of openair (2.6-4 I believe) and was having an issue that the TheilSen trend calculation was failing when deseason=TRUE when there were not missing...
How to weight the PSCF result on the basis of average no of endpoint in trajLevel function. I wish to apply following weight 1.00 = n∆θ ≥3 ñ∆θ 0.80 =...
Hallo. I found a problem using aqStats-Openair2.6-1, when "pollutant" includes carbon oxide (CO) among others. Example: if x is a dataframe with hourly data 1)stat
I am trying to understand the meaning of "prop.mean". In the user guide it is defined as: "By supplying the option statistic = "prop.mean" (proportion contribution to the mean), a...
Hi! I'm trying to download metadata from the KCL network with the following command: kcl_meta
I created dummy data to test out the windRose function but I am being greeted with an error `library(openair) Winddirection
Calendar plot is amazing but I usually plot a mean of 15 years and not 1 specifc year. Does anybody knows how to supress or not display the year besides...
Dear All, I have backward trajectory calculations by HYSPLIT which include 4 different locations at five different elevations. Is there a way to analyze this data as a whole in...
Dear David, I am trying to plot trajCluster with year and season as follows. trajCluster(traj,method="Euclid",n.cluster=4,col="jet",grid.col="grey",grid.alpha=0.2,lwd=6,map.fill=FALSE,map.cols = "transparent",map.alpha = 0.2,type=c("year","season"))  one season is missing and result also not fruitful. guide...
