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openair (version 1.7-3)

Tools for the Analysis of Air Pollution Data

Description

Tools to analyse, interpret and understand air pollution data. Data are typically hourly time series and both monitoring data and dispersion model output can be analysed. Many functions can also be applied to other data, including meteorological and traffic data.

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Install

install.packages('openair')

Monthly Downloads

4,751

Version

1.7-3

License

GPL (>= 2)

Issues

Pull Requests

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Repository

https://github.com/davidcarslaw/openair

Homepage

http://www.openair-project.org/

Maintainer

David Carslaw

Last Published

March 1st, 2016

Functions in openair (1.7-3)

Function to simplify and combine airbase data imports

Taylor Diagram for model evaluation with conditioning

Import hourly data from the European Environment Agency airbase database

Trajectory level plots with conditioning

Import pre-calculated HYSPLIT 96-hour back trajectories

Tests for trends using Theil-Sen estimates

K-means clustering of bivariate polar plots

Calculate percentile values from a time series

Generic data import for openair

Kernel density plot for daily mean exceedance statistics

conditionalQuantile

Conditional quantile estimates for model evaluation

Bivariate polar plot with smoothing

Function to plot percentiles by wind direction

Function to calculate time averages for data frames

Diurnal, day of the week and monthly variation

Calculate common model evaluation statistics

Bivariate polarAnnulus plot

Import data from King's College London networks

Traditional wind rose plot and pollution rose variation

Function to plot wind speed/direction frequencies and other statistics

Import pre-calculated airbase statistics

Calculate summary statistics for air pollution data by year

Function to split data in different ways for conditioning

Get information about airbase sites and instruments

Example data for openair

Import monitoring site meta data for the AURN, KCL and SAQN networks

AURN csv file data import for openair

Calculate rollingMean values

Subset a data frame based on date

corrgram plot with conditioning

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

Plot time series values in convential calendar format

Scottish Air Quality Network data import for openair

openair colours

Time series plot with categories shown as a stacked bar chart

Scale key handling for openair

Flexible scatter plots

Tools for the analysis of air pollution data

conditionalEval

Conditional quantile estimates with additional variables for model evaluation

Linear relations between pollutants

Divide up a data frame by time

Estimate NO2/NOX emission ratios from monitoring data

airbaseFindCode

Helper function to find EEA airbase site codes

Function to extract run lengths greater than a threshold

Function to rapidly provide an overview of air quality data

Calculate nonparametric smooth trends

Trajectory line plots with conditioning

Automatic text formatting for openair

Import data from the UK Automatic Urban and Rural Network (AURN)

Plot time series

Calculate clusters for back tracectories