Accuracy Assessor for ArcGIS

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Author	Jacob Mundt
File Name	Accuracy_Assessor.zip
Language	VBScript
Last Modified	Jan 17 2006
Status of work	Public Domain
Software	ArcGIS - ArcView
File Size	14.84 kb
Downloads	1104
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Summary
Accuracy Assessor is a simple visual basic script that is intended to automate accuracy assessments of classifications from remotely sensed imagery in ArcGIS. The script was written in ArcGIS 9.1, and its compatibility to other versions of software is untested. Accuracy Assessor requires three feature layers to operate correctly, and was designed to work with only polygon features. The expected features are: 1. Classification Output 2. Validation Positives 3. Validation Negatives Accuracy Assessor will calculate Producer's, User's, and overall accuracies for presence and absence of a single classified target. These accuracies are calculated in the standard manner, as described by Congalton (1991). Additionally, a value of Kappa (Moran's Kappa) and z-statistic (McNemar's test) are calculated according to methods described by Foody (2004). This script is relatively untested outside of the developer's box. Please report any bugs to the author.

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