ClassVal: Validate a Tree Prediction with TreeCrown Segments

In SchoenbergA/IKARUS: Classification Tool

Description

calculates the amount of cells for a class which overlap with responding Polygons.

Usage

ClassVal(pred, rsp, rsp_class = NULL, reclass = NULL)

Arguments

pred	RasterLayer - Prediction to be validated
rsp	PolygonLayer - Response Polygons for a class
rsp_class	numeric - The class representing the response area
reclass	optional - numeric value of class to merge into response class, for multiple classes to merge use reclass=c(x,y)

Value

returns the validation score

• return and plot the "tree 1 and no tree 2" layer, will be reclassified if 'reclass' is used.

• result table

• nclass - amount of cells for selected class (may differ if 'reclass' is used)

• nseg - total amount of cells for response area

• nover - amount of cells for classification outside response area

• nunder - amount of cells inside response area without correct class

• nhit - amount of cells inside response area with correct class

• hitrate - response area with correct class in % (sum of missrate and hitrate is 100%)

• missrate - response area without correct class in % (sum of missrate and hitrate is 100%)

• overrate - amount of cells for responding class outside responding area in % of total amount of cell of the class

Author(s)

Andreas Schönberg

SchoenbergA/IKARUS documentation built on Sept. 8, 2021, 11:11 a.m.