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Note: This addon document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade your GRASS GIS installation, and read the current addon manual page.

NAME

r.out.maxent_swd - Exports map data as input to MaxEnt in SWD format

KEYWORDS

raster, export, maxent, ecology, niche

SYNOPSIS

r.out.maxent_swd
r.out.maxent_swd --help
r.out.maxent_swd [-z] [alias_input=name] [env_maps=name[,name,...]] [alias_names=string] [bgr_output=name] [alias_output=name] [bgr_mask=name] [species_masks=name[,name,...]] [species_output=name] [species_names=string] [null_value=integer] [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

-z
Zoom computational region to species data (may speed up processing)
--overwrite
Allow output files to overwrite existing files
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog

Parameters:

alias_input=name
File containg map and alias name(s) for environmental parameter(s)
env_maps=name[,name,...]
Environmental parameter map(s)
alias_names=string
Alias names for environmental parameter map(s)
bgr_output=name
Output SWD file for the environmental data of the background landscape
alias_output=name
CSV-like output file with alias names in first column and map names in second column, separated by comma
bgr_mask=name
Map to be used as mask for the background landscape
species_masks=name[,name,...]
Raster map(s) of specie occurence
species_output=name
Output SWD file for the specie(s) related environmental data
species_names=string
Alias-name(s) for species to be used in MaxEnt SWD file instead of map names, separated by comma (default: map names).
null_value=integer
Integer representing NO DATA cell value (default: -9999)
Default: -9999

Table of contents

DESCRIPTION

The script is intended to produce a set of SWD files as input to MaxEnt >= 3.3.3e using r.stats.

The SWD file format is a simple CSV-like file file format as described in Elith et al. 2011. Generally it looks like:
specie_name,X,Y,parameter_1,parameter_2,...
your_specie,1.1,1.1,2,4.7,...
The first column always contains the name of the species, followed by two columns for the X- and Y-coordinates. Then each column represents one environmental parameter. In contrast to r.stats only integer values are accepted to represent NO DATA.

A background SWD file is always produced while species output can be omitted.

Multiple species can be processed, but each has to be in an individual raster map. Map names of the maps containing the environmental parameters can be replaced by short names, which should be used in MaxEnt >= 3.3.3.e.

Results from MaxEnt can either be imported using r.in.xyz or calculated from MaxEnt lambdas file using the r.maxent.lambdas.

SEE ALSO

r.stats, r.what, r.in.xyz,, r.maxent.lambdas

AUTHOR

Stefan Blumentrath, Norwegian Institute for Nature Research (NINA), http://www.nina.no

SOURCE CODE

Available at: r.out.maxent_swd source code (history)

Latest change: Thu Jan 20 09:37:25 2022 in commit: 922a69915b480043ddc5875bcb9579e5cdb411b7


Note: This addon document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade your GRASS GIS installation, and read the current addon manual page.

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