Changes between Version 19 and Version 20 of River width models


Ignore:
Timestamp:
Nov 26, 2010 9:38:59 AM (14 years ago)
Author:
celine
Comment:

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  • River width models

    v19 v20  
    1818'''Non linear regression''' with library(nlme) 
    1919 * Model 1: width~alpha*up_area^beta 
    20  * Model 2 : width~gamma*shreve^lambda  (à tester : width~gamma*shreve^lambda 
     20 * Model 2 : width~gamma*shreve^lambda  (à tester : width~gamma*strahler^lambda 
    2121 
    2222    
    … …  
    3232 * QQ-plot or histogrqam of the residuals for normality 
    3333 * Residuals versus each explanatory variable to check independence 
     34 
     35 
     36||[[Image(source:data/Docs/trac/RiverWidth/up_area_shreve.jpeg,300px)]] ||[[Image(source:data/Docs/trac/RiverWidth/up_area_strahler.jpeg,300px)]] 
     37||Up catchment area ~ shreve|| Up catchment area ~ strahler|| 
     38