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determine_weights_of_evidence_ranges [2011/08/02 01:54] hermann created |
determine_weights_of_evidence_ranges [2015/10/13 01:40] (current) admin |
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| ^ Name ^ Type ^ Description ^ | ^ Name ^ Type ^ Description ^ | ||
| - | | Initial Landscape | [[Categorical Map Type|Categorical Map]] | Initial map of land use and cover classes. | | + | | Initial Landscape | [[Categorical Map Type]] | Initial map of land use and cover classes. | |
| - | | Final Landscape | [[Categorical Map Type|Categorical Map]] | Final map of land use and cover classes. | | + | | Final Landscape | [[Categorical Map Type]] | Final map of land use and cover classes. | |
| - | | Skeleton | [[Weights Of Evidence Skeleton Type|Weights Of Evidence Skeleton]] | Spatial variables selected and their types - Category or continuous gray-tone -, and the parameters specified for range definitions, such as increment, maximum and minimum deltas, and tolerance angle. | | + | | Skeleton | [[Weights Of Evidence Skeleton Type]] | Spatial variables selected and their types - Category or continuous gray-tone -, and the parameters specified for range definitions, such as increment, maximum and minimum deltas, and tolerance angle. | |
| ===== Optional Inputs ===== | ===== Optional Inputs ===== | ||
| + | |||
| + | ^ Name ^ Type ^ Description ^ Default Value ^ | ||
| + | | Fix Abnormal Weights | [[Boolean Value Type]] | If true, recalculate abnormal weights. Otherwise, assume abnormal values are zero. | False | | ||
| ===== Outputs ===== | ===== Outputs ===== | ||
| ^ Name ^ Type ^ Description ^ | ^ Name ^ Type ^ Description ^ | ||
| - | | Ranges | [[Weights Type| Weights]] | Intervals defined for continuous gray-tone variable. | | + | | Ranges | [[Weights Type]] | Intervals defined for continuous gray-tone variable. | |
| ===== Group ===== | ===== Group ===== | ||
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| <m>W^+ = ln({y_{n=k}-y_{n=k-1}}/{A_{n=k}-A_{n=k-1}})</m> (10) | <m>W^+ = ln({y_{n=k}-y_{n=k-1}}/{A_{n=k}-A_{n=k-1}})</m> (10) | ||
| - | where <m>Y_n=An*exp(W^+)</m> and //k// represents the breakpoints defined for the n increments of //Dx//. | + | where <m>y_n=An*exp(W^+)</m> and //k// represents the breakpoints defined for the n increments of //Dx//. |
| [{{ :weightsofevidenceranges004.gif?nolink& |(a) Plot of //An// against for the variable "distance to all roads". The best-fitting curve can be approximated by a series of straight-line segments by using a line-generalizing algorithm as explained in the text. This approach is used to define the breaking points for this curve and subsequently category intervals for a continuous variable (b).}}] | [{{ :weightsofevidenceranges004.gif?nolink& |(a) Plot of //An// against for the variable "distance to all roads". The best-fitting curve can be approximated by a series of straight-line segments by using a line-generalizing algorithm as explained in the text. This approach is used to define the breaking points for this curve and subsequently category intervals for a continuous variable (b).}}] | ||