Package: M3 0.4

M3: Reading M3 Files

Provides functions to read in and manipulate air quality model output from Models3-formatted files. This format is used by the Community Multiscale Air Quality (CMAQ) model.

Authors:Jenise Swall <[email protected]>

M3_0.4.tar.gz
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M3.pdf |M3.html✨
M3/json (API)
NEWS

# Install 'M3' in R:

install.packages('M3', repos = c('https://jlswall.r-universe.dev', 'https://cloud.r-project.org'))

On CRAN:

This package does not link to any Github/Gitlab/R-forge repository. No issue tracker or development information is available.

15 exports 3.86 score 16 dependencies 30 mentions 44 scripts 233 downloads

Last updated 3 months agofrom:879f5d4e12. Checks:OK: 7. Indexed: yes.

Target	Result	Date
Doc / Vignettes	OK	Sep 18 2024
R-4.5-win	OK	Sep 18 2024
R-4.5-linux	OK	Sep 18 2024
R-4.4-win	OK	Sep 18 2024
R-4.4-mac	OK	Sep 18 2024
R-4.3-win	OK	Sep 18 2024
R-4.3-mac	OK	Sep 18 2024

Exports:combine.date.and.time decipher.M3.date decipher.M3.time get.canusamex.bds get.coord.for.dimension get.datetime.seq get.grid.info.M3 get.M3.var get.map.lines.M3.proj get.matrix.all.grid.cell.ctrs get.proj.info.M3 project.lonlat.to.M3 project.M3.1.to.M3.2 project.M3.to.lonlat var.subset

Dependencies:class classInt DBI e1071 KernSmooth magrittr mapdata maps MASS ncdf4 proxy Rcpp s2 sf units wk

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Readme and manuals

Help Manual

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

Package: M3 0.4

M3: Reading M3 Files

Citation

Readme and manuals

Help Manual

Usage by other packages (reverse dependencies)