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calc_w._of_e._probability_map [2011/07/26 20:13]
hermann created
calc_w._of_e._probability_map [2015/10/13 17:27]
admin
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 ===== Inputs ===== ===== Inputs =====
  
-^ Name            ^ Type                                            ^ Description ​                                                               +^ Name  ^ Type  ^ Description ​ 
-| Landscape ​      ​| [[Categorical Map Type|Categorical Map  ​]]      | Map of land use and cover classes ​                                         +| Landscape ​ | [[Categorical Map Type]] ​ | Map of land use and cover classes.  ​
-| Weights ​        ​| [[Categorical Map Type|Categorical Map  ​]]      | Weights of Evidence coefficients ​                                          ​+| Weights ​ | [[Categorical Map Type]] ​ | Weights of Evidence coefficients.  ​
-| Transitions ​    ​| [[Transition Set Type |Transition Set  ​]]       | List of transitions for which spatial probability maps will be calculated. | +| Transitions ​ | [[Transition Set Type]] ​ | List of transitions for which spatial probability maps will be calculated. |
-| Transitions ​    | [[Transition Set Type |Transition Set  ]]       | List of transitions for which spatial probability maps will be calculated. |+
  
 ===== Optional Inputs ===== ===== Optional Inputs =====
  
-^ Name              ^ Type                                ^ Description ​     ^ Default Value          +^ Name  ^ Type  ^ Description ​ ^ Default Value  
-| Cell Type         ​| [[Cell Type Type|Cell Type  ​]]      | Data cell type.  | Unsigned 8 Bit Integer | +| Cell Type  | [[Cell Type Type]] ​ | Data cell type.  | Unsigned 8 Bit Integer ​ 
-| Null Value        | [[Int Type|Int  ​]]                  | Null value       ​0                      ​| +| Null Value  | [[Null Value Type]] ​ | Null value.  ​Default  ​|
  
 ===== Output ===== ===== Output =====
  
-^ Name          ^ Type                ^ Description ​          ​+^ Name  ^ Type  ^ Description ​ 
-| Probabilities | [[Map Type|Map  ​]]  | Map of probabilities. |+| Probabilities ​ | [[Map Type]] ​ | Map of probabilities. ​ |
  
 ===== Group ===== ===== Group =====
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 ===== Notes ===== ===== Notes =====
  
-The spatial transition probability maps depict the probability of a cell at position //(x,y)// to change from state <​i>​i<​/ito state //j//. The spatial transition probabilities are calculated for each cell on the landscape raster map and for each specified transition. Dinamica employs the Weights of Evidence method, which uses a general polytomous logistic equation (see equation) to select the most favorable areas for each type of transition. The calculations are made using spatial variables stored in the GIS.+The spatial transition probability maps depict the probability of a cell at position //(x,y)// to change from state //i// to state //j//. The spatial transition probabilities are calculated for each cell on the landscape raster map and for each specified transition. Dinamica employs the Weights of Evidence method, which uses a general polytomous logistic equation (see equation) to select the most favorable areas for each type of transition. The calculations are made using spatial variables stored in the GIS.
  
 <m>P delim{lbrace}{i doubleright j delim{|}{A inter B inter C inter D cdots inter N}{|}}{rbrace}={e^sum{}{}{W^+}}/​{1+e^sum{}{}{W^+}}</​m>​ <m>P delim{lbrace}{i doubleright j delim{|}{A inter B inter C inter D cdots inter N}{|}}{rbrace}={e^sum{}{}{W^+}}/​{1+e^sum{}{}{W^+}}</​m>​