Reading M3 Files


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Documentation for package ‘M3’ version 0.4

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M3-package Functions to read in and manipulate air quality model output from files in Models3 format
combine.date.and.time Combine date and time to obtain date-time in POSIX format
decipher.M3.date Decipher Models3 date format (YYYYDDD) into R's Date class.
decipher.M3.time Decipher Models3 time format (HHMMSS) into hours, minutes, and seconds.
get.canusamex.bds Obtain map boundaries for Canada, USA, and Mexico
get.coord.for.dimension Get the grid coordinates for the grid rows or columns.
get.datetime.seq Read in a sequence of date-time steps from a Models3-formatted file.
get.grid.info.M3 Get information about the grid used by the air quality model
get.M3.var Read in variable values from Models3-formatted files
get.map.lines.M3.proj Get map lines in the model projection units
get.matrix.all.grid.cell.ctrs Obtain a matrix giving the locations of the grid cell centers
get.proj.info.M3 Obtain information about the projection used in the Models3 file
M3 Functions to read in and manipulate air quality model output from files in Models3 format
project.lonlat.to.M3 Project coordinates from longitude/latitude to model units.
project.M3.1.to.M3.2 Project coordinates based on projection in the first file to the projection given in the second
project.M3.to.lonlat Project coordinates from model units to longitude/latitude
var.subset Subset the array resulting from a call to 'get.M3.var'.