Project

General

Profile

« Previous | Next » 

Revision 92c36e33

Added by Benoit Parmentier about 12 years ago

  • ID 92c36e334b16f2d8e77dce99fab4aeae1d442881

made minor changes to PRISM variables

View differences:

climate/research/oregon/interpolation/Linear_reg.R
7 7 

  		




  8
  8
  
    
###Loading r library and packages


  		




  9
  9
  
    
library(raster)                                                                        # loading the raster package


  		




  10
  
  
    
library(gtools)                                                                       l# loading ...


  		




  
  10
  
    
library(gtools)                                                                        # loading ...


  		




  11
  11
  
    
library(sp)


  		




  12
  12
  
    
library(mgcv)


  		




  13
  13
  
    

  		




  ......




  53
  53
  
    

  		




  54
  54
  
    
###Regression part 1: linear models


  		




  55
  55
  
    

  		




  56
  
  
    
lm_ANUSPLIN1=lm(tmax~lat+lon+ELEV_SRTM, data=ghcn1507_s)


  		




  57
  
  
    
lm_PRISM1=lm(tmax~lat+lon+ELEV_SRTM+ASPECT+DISTOC, data=ghcn1507_s) #Note that a variable on inversion is missing


  		




  
  56
  
    
lm_ANUSPLIN1<-lm(tmax~lat+lon+ELEV_SRTM, data=ghcn1507_s)


  		




  
  57
  
    
lm_PRISM1<-lm(tmax~lat+lon+ELEV_SRTM+ASPECT+DISTOC, data=ghcn1507_s) #Note that a variable on inversion is missing


  		




  58
  58
  
    
summary(lm_ANUSPLIN1)


  		




  59
  59
  
    
summary(lm_PRISM1)


  		




  60
  60
  
    

  		




  61
  61
  
    
###Regression part 2: GAM models


  		




  62
  
  
    
GAM_PRISM1<-gam(tmax~ s(lat) + s (lon) + s (ELEV_SRTM), data=ghcn1507_s)


  		




  63
  62
  
    
GAM_ANUSPLIN1<-gam(tmax~ s(lat) + s (lon) + s (ELEV_SRTM), data=ghcn1507_s)


  		




  
  63
  
    
GAM_PRISM1<-gam(tmax~ s(lat) + s (lon) + s (ELEV_SRTM) + s (ASPECT)+ s(DISTOC), data=ghcn1507_s)


  		




  64
  64
  
    
#use the s() for smoothing function


  		




  65
  65
  
    

  		




  66
  66
  
    
###Compare the models


  		




  ......




  105
  105
  
    
AIC_all<-AIC(lm_ANUSPLIN1,GAM_ANUSPLIN1,lm_PRISM1,GAM_PRISM1)


  		




  106
  106
  
    
results<-data.frame(model=mod_name,RMSE=RMSE_all,df=AIC_all$df,AIC=AIC_all$AIC)


  		




  107
  107
  
    

  		




  108
  
  
    

  		




  109
  108
  
    
#dump("results", file= paste(path,"/","results_reg1507.txt",sep=""))


  		




  110
  109
  
    
write.csv(results, file= paste(path,"/","results_reg1507.txt",sep=""))


  		




  111
  110
  
    

  		












Also available in:  Unified diff