helpCalcKappa: Calculate various kappa coefficients

In environmentalinformatics-marburg/gpm: Geospatial predictive modeling using parameterized and unparameterized models.

Description

Calculate various kappa coefficients for accuracy assessment of classifications.

Usage

helpCalcKappa(ctable)

Arguments

ctable

contingency table (see function calcConTab)

Details

The forumlas have been take from Kuhnert et al. (2005) and Pontius and Millones (2011). Currently, the following coefficients are implemented:

• standard kappa index

• kappa of location

• kappa of histogram

• chance agreement

• quantity agreement

• allocation agreement

• allocation disagreement

• quantity disagreement

Value

Matrix containing different kappa coefficients

References

Kuhnert M, Voinov A, Seppelt R (2005) Comparing raster map comparison algorithms for spatial modeling and analysis. Photogrammetric Engineering and Remote Sensing 71/8, doi: 10.14358/PERS.71.8.975 available online at http://dx.doi.org/10.14358/PERS.71.8.975

Pontius RG, Millones M (2011) Death to Kappa: birth of quantity disagreement and allocation disagreement for accuracy assessment. International Journal of Remote Sensing 32/15, doi: 10.1080/01431161.2011.552923, available online at http://dx.doi.org/10.1080/01431161.2011.552923

See Also

compContingencyTable for compiling a contingency table.

Examples

# Not run
helpCalcKappa(contab)

environmentalinformatics-marburg/gpm documentation built on July 11, 2020, 11:12 a.m.