All functions 


Taylor Diagram for model evaluation with conditioning 

Tests for trends using TheilSen estimates 

Calculate summary statistics for air pollution data by year 

Bin data, calculate mean and bootstrap 95% confidence interval in the mean 

Bootsrap confidence intervals in the mean 

Estimate NO2/NOX emission ratios from monitoring data 

Calculate percentile values from a time series 

Plot time series values in convential calendar format 

Conditional quantile estimates with additional variables for model evaluation 

Conditional quantile estimates for model evaluation 

corrgram plot with conditioning 

Function to split data in different ways for conditioning 

Scale key handling for openair 

Generic data import for openair 

CERC Atmospheric Dispersion Modelling System (ADMS) data import function(s) for openair 


Air Quality England Network data import for openair 
AURN csv file data import for openair 

Import air quality data from European database 

Import data from King's College London networks 

Import monitoring site meta data for the UK and European networks 

Import precalculated HYSPLIT 96hour back trajectories 

Kernel density plot for daily mean exceedance statistics 

Linear relations between pollutants 

Calculate common model evaluation statistics 

Example data for openair 

openair colours 

Tools for the analysis of air pollution data 

Function to plot percentiles by wind direction 

Bivariate polarAnnulus plot 

Kmeans clustering of bivariate polar plots 

Polar plots considering changes in concentrations between two time periods 

Function to plot wind speed/direction frequencies and other statistics 

Function for plotting bivariate polar plots with smoothing. 

Automatic text formatting for openair 

Calculate rollingMean values 

Flexible scatter plots 

Subset a data frame based on date 

Function to extract run lengths greater than a threshold 

Calculate nonparametric smooth trends 

Divide up a data frame by time 

Function to rapidly provide an overview of air quality data 

Function to calculate time averages for data frames 

Plot time series 

Time series plot with categories shown as a stacked bar chart 

Diurnal, day of the week and monthly variation 

Calculate clusters for back tracectories 

Trajectory level plots with conditioning 

Trajectory line plots with conditioning 

trendLevel 

Traditional wind rose plot and pollution rose variation 