Questions tagged [openair]

The openair project aims to provide a collection of open-source tools for the analysis of air pollution data.

The openair project is a Natural Environment Research Council (NERC) knowledge exchange project that aims to provide a collection of open-source tools for the analysis of air pollution data.

From the openair website, the project is described thus:

An enormous amount of air pollution data is collected worldwide and the amount of data collected continues to increase.

...

Improved information concerning the sources and nature of air pollution will help lead to the development of better policies for controlling air pollution.

The analysis of air pollution data can however be difficult. Often there is a lack of knowledge concerning what types of technique are available (there are many), the tools required to carry out analyses can be spread across many different types of software, or are expensive. In general, a consistent set of tools for air quality data analysis does not exist.

The openair project aims to address these issues by:

  • Providing a free, open-source set of tools available to everyone
  • Making available a range of existing techniques and developing new ones for the analysis of air pollution data
  • Using the statistical/data analysis software R as a platform – a powerful, open-source programming language ideal for insightful data analysis
  • Making it easy to carry out sophisticated analyses quickly, in an interactive and reproducible way
  • Encourage the air quality community to use and help further develop these tools

Links

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user data as variable in shiny

I am building an app to analyze wind data using the packages “shiny” and “openair”. I am trying to read the input data given by the user and use it as variables, but I keep getting: Error in updateSelectInput(session, "pollutant", choices =…
eliavs
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GoogleMapsPlot from openair not available?

I would like to know why the GoogleMapsPlot function from the openair package is not available or at least I don't know why it doesn't appear in window. Thanks in advance!!
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How to remove the legend from a plot in R?

I'd appreciate help on how to remove a legend from a plot. Say we have this: I want to remove the "PM2.5" and the corresponding red line at the bottom of the plot. I wish it to be blank, the reason for this is because I'm using the print and split…
Eyrand
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How to calculate the annual average from time series data

I have one issue on calculating the annual average of my data. Here is my data (dt.select): head(dt.select) DATE SITE_ID TSO4 TNO3 TNH4 NSO4 61372 2000-01-07 ALH157 1.9873 3.3794 1.5214 0.2743 61369 2000-01-14 ALH157…
Lee Yee
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windRose in openair package: how to control PM10 concentration?

In openair package, windRose function linked wind direction between PM10 concentration. For example: windRose(mydata, type = "pm10", layout = c(4, 1)) Wind rose for four different levels of PM10 concentration. The levels are defined as the four…
Lee Yee
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Remove Rows By Specific Hours Across Multiple Dates (POSIXt format) in R

I have a dataframe and need to get rid of rows with hours 0:00, 1:00, 2:00, 3:00, 4:00, 5:00, 6:00 for all dates, leaving only 17 numbers for each day instead of 24. Then I need to calculate the maximum value for each day from those 17 values but…
rlericks
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