r.confusionmatrix - GRASS GIS manual

Note: This document is for an older version of GRASS GIS that has been discontinued. You should upgrade, and read the current manual page.

NAME

r.confusionmatrix - Calculates a confusion matrix and accuracies for a given classification using r.kappa.

KEYWORDS

raster, statistics, accuracy, classification

SYNOPSIS

r.confusionmatrix

r.confusionmatrix --help

r.confusionmatrix [-dm] [classification=name] [raster_reference=name] [vector_reference=name] [column=name] [label_column=name] [csvfile=name] [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

-d: Description of the accuracies
-m: Print output as a matrix
--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:

classification=name: Name of raster map containing classification result
raster_reference=name: Name of raster map containing reference classes
vector_reference=name: Name of input vector map; Name of vector map containing reference classes
column=name: Name of column in the vector map containing reference classes
label_column=name: Name of column used as raster category labels
csvfile=name: Name for output csv file containing confusion matrix and accuracies; If not given write to standard output

DESCRIPTION
NOTES
EXAMPLE
SEE ALSO
AUTHOR

DESCRIPTION

r.confusionmatrix calculates the confusion matrix, overall, user and producer accuracies, the omission and commission errors and the Kappa coefficient of classification result using r.kappa.

NOTES

The reference can be a raster map raster_reference or a vector map vector_reference with a column containing the class labels as integer numbers.

In case of vector reference, this map is rasterized according to the extent and resolution of the classification raster map.

EXAMPLE

Compute the confusion matrix as CSV file including description of the accuracies:

r.confusionmatrix classification=classified raster_reference=trainingmap csvfile=test.csv -d

AUTHOR

Anika Bettge, mundialis GmbH & Co. KG

SOURCE CODE

Available at: r.confusionmatrix source code (history)

Latest change: Monday Jun 28 07:54:09 2021 in commit: 1cfc0af029a35a5d6c7dae5ca7204d0eb85dbc55