Convert raw air quality data published by http://datos.madrid.es/ to a clean data frame.

The original format is hard to interpret:

2807900214060201042844.55V52.04V48.30V48.37V23.60V27.89V28.42V13.75V19.11V38.89V26.32V27.05V41.60V46.91V58.52V77.15V74.55V60.91V52.33V46.20V23.47V9.500V12.24V18.92V

madrid.air allows you to convert it to a more readable form:

     Station Year Month Day Hour Magnitude Value
1	28079002 2001     4  28    1        O3 44.55
2	28079002 2001     4  28    2        O3 52.04
3	28079002 2001     4  28    3        O3 48.30
...

To install madrid.air from GitHub start the R CMD interface and run the following commands:

install.packages("devtools")
library(devtools)
install_github("nramon/madrid.air")

Both daily and hourly data can be freely downloaded from http://datos.madrid.es/.

See the package documentation for usage instructions and examples:

library(madrid.air)
?madrid.air
?madrid.air.parse
?madrid.air.magnitudes
?madrid.air.stations

To provide feedback please use the issue tracker.

See CONTRIBUTING.md.

Copyright (C) 2016 Ramon Novoa [email protected]

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.