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--- en:manuel_reference:methode_micro:verif_habby [2021/12/01 16:10] – ylecoarer
+++ en:manuel_reference:methode_micro:verif_habby [2021/12/02 10:38] – ylecoarer
@@ Line 15: / Line 15: @@
 (1a) \[HSI_i=SI_H(H_i)\times SI_V(V_i)\times SI_S(S_i)\]
 (1b) \[HSI_i=(SI_H(H_i)\times SI_V(V_i)\times SI_S(S_i))^\frac{1}{3}\]
-(1c) \[HSI_i=\frac{SI_H(H_i)\times SI_V(V_i)\times SI_S(S_i)}{3}\]
+(1c) \[HSI_i=\frac{SI_H(H_i)+ SI_V(V_i)+ SI_S(S_i)}{3}\]
+In case the user decides to use only two variables for example (H,V), these equations are adapted in HABBY and become :
+(1_a2) \[HSI_i=SI_H(H_i)\times SI_V(V_i)\]
+(1_b2) \[HSI_i=(SI_H(H_i)\times SI_V(V_i))^\frac{1}{2}\]
+(1_c2) \[HSI_i=\frac{SI_H(H_i)+ SI_V(V_i)}{2}\]
+The logics (a) product, (b) geometric mean and (c) mean are respected.
+In the case where the biological model is bivariate (H,V) equation (1) is written :
+(1_biv) \[HSI_i=SI_{H,V}(H_i,V_i)\]
 (2) \[WUA=\sum_{i=1}^M A_i\times HSI_i\]
 (3) \[OSI=\frac{WUA}{\sum_{i=1}^M A_i}\]