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################## Validation and analyses of results #######################################
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############################ Covariate production for a given tile/region ##########################################
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#This script examines inputs and outputs from the interpolation step.
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#Part 1: Script produces plots for every selected date
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#Part 2: Examine
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#AUTHOR: Benoit Parmentier
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#DATE: 03/18/2013
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#PROJECT: NCEAS INPLANT: Environment and Organisms --TASK#???--
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##Comments and TODO:
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#Separate inteprolation results analyses from covariates analyses
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##################################################################################################
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###Loading R library and packages
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library(RPostgreSQL)
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library(sp) # Spatial pacakge with class definition by Bivand et al.
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library(spdep) # Spatial pacakge with methods and spatial stat. by Bivand et al.
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library(rgdal) # GDAL wrapper for R, spatial utilities
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library(raster)
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library(gtools)
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library(rasterVis)
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library(graphics)
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library(grid)
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library(lattice)
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### Parameters and arguments
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##Paths to inputs and output
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#Select relevant dates and load R objects created during the interpolation step
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##Paths to inputs and output
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script_path<-"/home/parmentier/Data/IPLANT_project/Venezuela_interpolation/Venezuela_01142013/"
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in_path <- "/home/parmentier/Data/IPLANT_project/Venezuela_interpolation/Venezuela_01142013/input_data/"
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out_path<- "/home/parmentier/Data/IPLANT_project/Venezuela_interpolation/Venezuela_01142013/output_data/"
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infile_covar<-"covariates__venezuela_region__VE_01292013.tif" #this is an output from covariate script
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date_selected<-c("20000101") ##This is for year 2000!!!
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raster_prediction_obj<-"raster_prediction_obj__365d_GAM_fus5_all_lstd_03132013.RData"
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#out_prefix<-"_365d_GAM_fus5_all_lstd_03132013"
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#out_prefix<-"_365d_GAM_fus5_all_lstd_03142013" #User defined output prefix
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out_prefix<-"_365d_GAM_fus5_all_lstd_03132013" #User defined output prefix
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var<-"TMAX"
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#gam_fus_mod<-load_obj("gam_fus_mod_365d_GAM_fus5_all_lstd_02202013.RData")
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#validation_obj<-load_obj("gam_fus_validation_mod_365d_GAM_fus5_all_lstd_02202013.RData")
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#clim_obj<-load_obj("gamclim_fus_mod_365d_GAM_fus5_all_lstd_02202013.RData")
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rnames<-c("x","y","lon","lat","N","E","N_w","E_w","elev","slope","aspect","CANHEIGHT","DISTOC")
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lc_names<-c("LC1","LC2","LC3","LC4","LC5","LC6","LC7","LC8","LC9","LC10","LC11","LC12")
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lst_names<-c("mm_01","mm_02","mm_03","mm_04","mm_05","mm_06","mm_07","mm_08","mm_09","mm_10","mm_11","mm_12",
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"nobs_01","nobs_02","nobs_03","nobs_04","nobs_05","nobs_06","nobs_07","nobs_08",
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"nobs_09","nobs_10","nobs_11","nobs_12")
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covar_names<-c(rnames,lc_names,lst_names)
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list_param<-list(in_path,out_path,script_path,raster_prediction_obj,infile_covar,covar_names,date_selected,var,out_prefix)
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names(list_param)<-c("in_path","out_path","script_path","raster_prediction_obj",
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"infile_covar","covar_names","date_selected","var","out_prefix")
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setwd(in_path)
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## make this a script that calls several function:
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#1) covariate script
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#2) plots by dates
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#3) number of data points monthly and daily
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### Functions used in the script
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load_obj <- function(f)
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{
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env <- new.env()
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nm <- load(f, env)[1]
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env[[nm]]
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}
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extract_number_obs<-function(list_param){
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method_mod_obj<-list_param$method_mod_obj
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#Change to results_mod_obj[[i]]$data_s to make it less specific
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lapply(1:length(method_obj),function(k) nrow(method_mod_obj[[k]]$data_s))
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lapply(1:length(method_obj),function(k) nrow(method_mod_obj[[k]]$data_v))
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lapply(1:length(clim_obj),function(k) nrow(method_mod_obj[[k]]$data_v))
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return()
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}
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### PLOTTING RESULTS FROM VENEZUELA INTERPOLATION FOR ANALYSIS
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#source(file.path(script_path,"results_interpolation_date_output_analyses_03182013.R"))
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#j=1
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#plots_assessment_by_date(1,list_param)
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plots_assessment_by_date<-function(j,list_param){
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date_selected<-list_param$date_selected
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var<-list_param$var
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#gam_fus_mod<-load_obj("gam_fus_mod_365d_GAM_fus5_all_lstd_02202013.RData")
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#validation_obj<-load_obj("gam_fus_validation_mod_365d_GAM_fus5_all_lstd_02202013.RData")
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#clim_obj<-load_obj("gamclim_fus_mod_365d_GAM_fus5_all_lstd_02202013.RData")
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raster_prediction_obj<-load_obj(list_param$raster_prediction_obj)
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#method_mod_obj<-raster_prediction_obj$method_mod_obj
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method_mod_obj<-raster_prediction_obj$gam_fus_mod #change later for any model type
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#validation_obj<-raster_prediction_obj$validation_obj
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validation_obj<-raster_prediction_obj$gam_fus_validation_mod #change later for any model type
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#clim_obj<-raster_prediction_obj$clim_obj
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clim_obj<-raster_prediction_obj$gamclim_fus_mod #change later for any model type
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if (var=="TMAX"){
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y_var_name<-"dailyTmax"
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}
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if (var=="TMIN"){
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y_var_name<-"dailyTmin"
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}
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## Read covariate stack...
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covar_names<-list_param$covar_names
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s_raster<-brick(infile_covar) #read in the data stack
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names(s_raster)<-covar_names #Assigning names to the raster layers: making sure it is included in the extraction
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## Figure 0: study area based on LC12 (water) mask
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LC_mask<-subset(s_raster,"LC12")
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LC_mask[LC_mask==100]<-NA
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LC_mask <- LC_mask < 100
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LC_mask_rec<-LC_mask
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LC_mask_rec[is.na(LC_mask_rec)]<-0
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#Add proportion covered by study area+ total of image pixels
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tmp_tb<-freq(LC_mask_rec)
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tmp_tb[2,2]/sum(tmp_tb[,2])*100
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png(paste("Study_area_",
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out_prefix,".png", sep=""))
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plot(LC_mask_rec,legend=FALSE,col=c("black","red"))
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legend("topright",legend=c("Outside","Inside"),title="Study area",
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pt.cex=0.9,fill=c("black","red"),bty="n")
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title("Study area")
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dev.off()
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#determine index position matching date selected
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for (j in 1:length(date_selected)){
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for (i in 1:length(method_mod_obj)){
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if(method_mod_obj[[i]]$sampling_dat$date==date_selected[j]){
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i_dates[[j]]<-i
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}
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}
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}
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#Examine the first select date add loop or function later
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#j=1
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date<-strptime(date_selected[j], "%Y%m%d") # interpolation date being processed
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month<-strftime(date, "%m") # current month of the date being processed
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#Get raster stack of interpolated surfaces
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index<-i_dates[[j]]
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pred_temp<-as.character(method_mod_obj[[index]]$dailyTmax) #list of files
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rast_pred_temp<-stack(pred_temp) #stack of temperature predictions from models
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#Get validation metrics, daily spdf training and testing stations, monthly spdf station input
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sampling_dat<-method_mod_obj[[index]]$sampling_dat
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metrics_v<-validation_obj[[index]]$metrics_v
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metrics_s<-validation_obj[[index]]$metrics_s
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data_v<-validation_obj[[index]]$data_v
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data_s<-validation_obj[[index]]$data_s
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data_month<-clim_obj[[index]]$data_month
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formulas<-clim_obj[[index]]$formulas
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#Adding layer LST to the raster stack of covariates
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#The names of covariates can be changed...
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LST_month<-paste("mm_",month,sep="") # name of LST month to be matched
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pos<-match("LST",layerNames(s_raster)) #Find the position of the layer with name "LST", if not present pos=NA
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s_raster<-dropLayer(s_raster,pos) # If it exists drop layer
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pos<-match(LST_month,layerNames(s_raster)) #Find column with the current month for instance mm12
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r1<-raster(s_raster,layer=pos) #Select layer from stack
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layerNames(r1)<-"LST"
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#Get mask image!!
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date_proc<-strptime(sampling_dat$date, "%Y%m%d") # interpolation date being processed
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mo<-as.integer(strftime(date_proc, "%m")) # current month of the date being processed
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day<-as.integer(strftime(date_proc, "%d"))
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year<-as.integer(strftime(date_proc, "%Y"))
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datelabel=format(ISOdate(year,mo,day),"%b %d, %Y")
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## Figure 1: LST_TMax_scatterplot
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rmse<-metrics_v$rmse[nrow(metrics_v)]
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rmse_f<-metrics_s$rmse[nrow(metrics_s)]
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png(paste("LST_TMax_scatterplot_",sampling_dat$date,"_",sampling_dat$prop,"_",sampling_dat$run_samp,
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out_prefix,".png", sep=""))
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plot(data_month$TMax,data_month$LST,xlab="Station mo Tmax",ylab="LST mo Tmax")
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title(paste("LST vs TMax for",datelabel,sep=" "))
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abline(0,1)
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nb_point<-paste("n=",length(data_month$TMax),sep="")
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mean_bias<-paste("Mean LST bias= ",format(mean(data_month$LSTD_bias,na.rm=TRUE),digits=3),sep="")
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#Add the number of data points on the plot
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legend("topleft",legend=c(mean_bias,nb_point),bty="n")
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dev.off()
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## Figure 2: Daily_tmax_monthly_TMax_scatterplot, modify for TMin!!
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png(paste("Daily_tmax_monthly_TMax_scatterplot_",sampling_dat$date,"_",sampling_dat$prop,"_",sampling_dat$run_samp,
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out_prefix,".png", sep=""))
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plot(dailyTmax~TMax,data=data_s,xlab="Mo Tmax",ylab=paste("Daily for",datelabel),main="across stations in VE")
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nb_point<-paste("ns=",length(data_s$TMax),sep="")
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nb_point2<-paste("ns_obs=",length(data_s$TMax)-sum(is.na(data_s[[y_var_name]])),sep="")
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nb_point3<-paste("n_month=",length(data_month$TMax),sep="")
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#Add the number of data points on the plot
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legend("topleft",legend=c(nb_point,nb_point2,nb_point3),bty="n",cex=0.8)
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dev.off()
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## Figure 3: Predicted_tmax_versus_observed_scatterplot
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#This is for mod_kr!! add other models later...
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png(paste("Predicted_tmax_versus_observed_scatterplot_",sampling_dat$date,"_",sampling_dat$prop,"_",sampling_dat$run_samp,
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out_prefix,".png", sep=""))
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#plot(data_s$mod_kr~data_s[[y_var_name]],xlab=paste("Actual daily for",datelabel),ylab="Pred daily")
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y_range<-range(c(data_s$mod_kr,data_v$mod_kr),na.rm=T)
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x_range<-range(c(data_s[[y_var_name]],data_v[[y_var_name]]),na.rm=T)
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col_t<- c("black","red")
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pch_t<- c(1,2)
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plot(data_s$mod_kr,data_s[[y_var_name]],
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xlab=paste("Actual daily for",datelabel),ylab="Pred daily",
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ylim=y_range,xlim=x_range,col=col_t[1],pch=pch_t[1])
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points(data_v$mod_kr,data_v[[y_var_name]],col=col_t[2],pch=pch_t[2])
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grid(lwd=0.5, col="black")
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#plot(data_v$mod_kr~data_v[[y_var_name]],xlab=paste("Actual daily for",datelabel),ylab="Pred daily")
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abline(0,1)
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legend("topleft",legend=c("training","testing"),pch=pch_t,col=col_t,bty="n",cex=0.8)
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title(paste("Predicted_tmax_versus_observed_scatterplot for",datelabel,sep=" "))
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nb_point1<-paste("ns_obs=",length(data_s$TMax)-sum(is.na(data_s[[y_var_name]])),sep="")
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rmse_str1<-paste("RMSE= ",format(rmse,digits=3),sep="")
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rmse_str2<-paste("RMSE_f= ",format(rmse_f,digits=3),sep="")
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#Add the number of data points on the plot
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legend("bottomright",legend=c(nb_point1,rmse_str1,rmse_str2),bty="n",cex=0.8)
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dev.off()
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## Figure 5: prediction raster images
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png(paste("Raster_prediction_",sampling_dat$date,"_",sampling_dat$prop,"_",sampling_dat$run_samp,
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out_prefix,".png", sep=""))
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#paste(metrics_v$pred_mod,format(metrics_v$rmse,digits=3),sep=":")
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names(rast_pred_temp)<-paste(metrics_v$pred_mod,format(metrics_v$rmse,digits=3),sep=":")
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#plot(rast_pred_temp)
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levelplot(rast_pred_temp)
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dev.off()
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## Figure 5b: prediction raster images
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png(paste("Raster_prediction_plot",sampling_dat$date,"_",sampling_dat$prop,"_",sampling_dat$run_samp,
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out_prefix,".png", sep=""))
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#paste(metrics_v$pred_mod,format(metrics_v$rmse,digits=3),sep=":")
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names(rast_pred_temp)<-paste(metrics_v$pred_mod,format(metrics_v$rmse,digits=3),sep=":")
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#plot(rast_pred_temp)
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plot(rast_pred_temp)
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dev.off()
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## Figure 6: training and testing stations used
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png(paste("Training_testing_stations_map_",sampling_dat$date,"_",sampling_dat$prop,"_",sampling_dat$run_samp,
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out_prefix,".png", sep=""))
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plot(raster(rast_pred_temp,layer=5))
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plot(data_s,col="black",cex=1.2,pch=2,add=TRUE)
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plot(data_v,col="red",cex=1.2,pch=1,add=TRUE)
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legend("topleft",legend=c("training stations", "testing stations"),
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cex=1, col=c("black","red"),
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pch=c(2,1),bty="n")
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dev.off()
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## Figure 7: monthly stations used
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png(paste("Monthly_data_study_area",
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out_prefix,".png", sep=""))
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plot(raster(rast_pred_temp,layer=5))
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plot(data_month,col="black",cex=1.2,pch=4,add=TRUE)
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title("Monthly ghcn station in Venezuela for January")
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dev.off()
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## Figure 8: delta surface and bias
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png(paste("Bias_delta_surface_",sampling_dat$date[i],"_",sampling_dat$prop[i],
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"_",sampling_dat$run_samp[i],out_prefix,".png", sep=""))
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bias_rast<-stack(clim_obj[[index]]$bias)
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delta_rast<-raster(method_mod_obj[[index]]$delta) #only one delta image!!!
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names(delta_rast)<-"delta"
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rast_temp_date<-stack(bias_rast,delta_rast)
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rast_temp_date<-mask(rast_temp_date,LC_mask,file="test.tif",overwrite=TRUE)
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#bias_d_rast<-raster("fusion_bias_LST_20100103_30_1_10d_GAM_fus5_all_lstd_02082013.rst")
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plot(rast_temp_date)
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dev.off()
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#Figure 9: histogram for all images...
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#histogram(rast_pred_temp)
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list_output_analyses<-list(metrics_s,metrics_v)
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return(list_output_analyses)
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}
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## Summarize information for the day: write out textfile...
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#Number of station per month
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#Number of station per day (training, testing,NA)
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#metrics_v,metrics_s
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#
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# ################
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# #PART 2: Region Covariate analyses ###
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# ################
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#
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# # This should be in a separate script to analyze covariates from region.
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#
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# #MAP1:Study area with LC mask and tiles/polygon outline
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#
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#
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# #MAP 2: plotting land cover in the study region:
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#
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# l1<-"LC1,Evergreen/deciduous needleleaf trees"
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# l2<-"LC2,Evergreen broadleaf trees"
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# l3<-"LC3,Deciduous broadleaf trees"
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# l4<-"LC4,Mixed/other trees"
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# l5<-"LC5,Shrubs"
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# l6<-"LC6,Herbaceous vegetation"
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# l7<-"LC7,Cultivated and managed vegetation"
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# l8<-"LC8,Regularly flooded shrub/herbaceous vegetation"
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# l9<-"LC9,Urban/built-up"
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# l10<-"LC10,Snow/ice"
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# l11<-"LC11,Barren lands/sparse vegetation"
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# l12<-"LC12,Open water"
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# lc_names_str<-c(l1,l2,l3,l4,l5,l6,l7,l8,l9,l10,l11,l12)
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331
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#
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332
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# names(lc_reg_s)<-lc_names_str
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333
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#
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334
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# png(paste("LST_TMax_scatterplot_",sampling_dat$date[i],"_",sampling_dat$prop[i],"_",sampling_dat$run_samp[i], out_prefix,".png", sep=""))
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335
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# plot(modst$TMax,sta_tmax_from_lst,xlab="Station mo Tmax",ylab="LST mo Tmax",main=paste("LST vs TMax for",datelabel,sep=" "))
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336
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# abline(0,1)
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337
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# nb_point<-paste("n=",length(modst$TMax),sep="")
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338
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# mean_bias<-paste("LST bigrasas= ",format(mean(modst$LSTD_bias,na.rm=TRUE),digits=3),sep="")
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339
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# #Add the number of data points on the plot
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340
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# legend("topleft",legend=c(mean_bias,nb_point),bty="n")
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341
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# dev.off()
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342
|
#
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343
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# #Map 3: Elevation and LST in January
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344
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# tmp_s<-stack(LST,elev_1)
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345
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# png(paste("LST_elev_",sampling_dat$date[i],"_",sampling_dat$prop[i],"_",sampling_dat$run_samp[i], out_prefix,".png", sep=""))
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346
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# plot(tmp_s)
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347
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#
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348
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# #Map 4: LST climatology per month
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349
|
#
|
350
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# names_tmp<-c("mm_01","mm_02","mm_03","mm_04","mm_05","mm_06","mm_07","mm_08","mm_09","mm_10","mm_11","mm_12")
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351
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# LST_s<-subset(s_raster,names_tmp)
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352
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# names_tmp<-c("nobs_01","nobs_02","nobs_03","nobs_04","nobs_05","nobs_06","nobs_07","nobs_08",
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353
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# "nobs_09","nobs_10","nobs_11","nobs_12")
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354
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# LST_nobs<-subset(s_raster,names_tmp)
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355
|
#
|
356
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# LST_nobs<-mask(LST_nobs,LC_mask,filename="test2.tif")
|
357
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# LST_s<-mask(LST_s,LC_mask,filename="test3.tif")
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358
|
# c("Jan","Feb")
|
359
|
# plot(LST_s)
|
360
|
# plot(LST_nobs)
|
361
|
#
|
362
|
# #Map 5: LST and TMax
|
363
|
#
|
364
|
# #note differnces in patternin agricultural areas and
|
365
|
# min_values<-cellStats(LST_s,"min")
|
366
|
# max_values<-cellStats(LST_s,"max")
|
367
|
# mean_values<-cellStats(LST_s,"mean")
|
368
|
# sd_values<-cellStats(LST_s,"sd")
|
369
|
# #median_values<-cellStats(molst,"median") Does not extist
|
370
|
# statistics_LST_s<-cbind(min_values,max_values,mean_values,sd_values) #This shows that some values are extremes...especially in October
|
371
|
# LST_stat_data<-as.data.frame(statistics_LST_s)
|
372
|
# names(LST_stat_data)<-c("min","max","mean","sd")
|
373
|
# # Statistics for number of valid observation stack
|
374
|
# min_values<-cellStats(nobslst,"min")
|
375
|
# max_values<-cellStats(nobslst,"max")
|
376
|
# mean_values<-cellStats(nobslst,"mean")
|
377
|
# sd_values<-cellStats(nobslst,"sd")
|
378
|
# statistics_LSTnobs_s<-cbind(min_values,max_values,mean_values,sd_values) #This shows that some values are extremes...especially in October
|
379
|
# LSTnobs_stat_data<-as.data.frame(statistics_LSTnobs_s)
|
380
|
#
|
381
|
# X11(width=12,height=12)
|
382
|
# #Plot statiscs (mean,min,max) for monthly LST images
|
383
|
# plot(1:12,LST_stat_data$mean,type="b",ylim=c(-15,60),col="black",xlab="month",ylab="tmax (degree C)")
|
384
|
# lines(1:12,LST_stat_data$min,type="b",col="blue")
|
385
|
# lines(1:12,LST_stat_data$max,type="b",col="red")
|
386
|
# text(1:12,LST_stat_data$mean,rownames(LST_stat_data),cex=1,pos=2)
|
387
|
#
|
388
|
# legend("topleft",legend=c("min","mean","max"), cex=1.5, col=c("blue","black","red"),
|
389
|
# lty=1)
|
390
|
# title(paste("LST statistics for Oregon", "2010",sep=" "))
|
391
|
# savePlot("lst_statistics_OR.png",type="png")
|
392
|
#
|
393
|
# #Plot number of valid observations for LST
|
394
|
# plot(1:12,LSTnobs_stat_data$mean,type="b",ylim=c(0,280),col="black",xlab="month",ylab="tmax (degree C)")
|
395
|
# lines(1:12,LSTnobs_stat_data$min,type="b",col="blue")
|
396
|
# lines(1:12,LSTnobs_stat_data$max,type="b",col="red")
|
397
|
# text(1:12,LSTnobs_stat_data$mean,rownames(LSTnobs_stat_data),cex=1,pos=2)
|
398
|
#
|
399
|
# legend("topleft",legend=c("min","mean","max"), cex=1.5, col=c("blue","black","red"),
|
400
|
# lty=1)
|
401
|
# title(paste("LST number of valid observations for Oregon", "2010",sep=" "))
|
402
|
# savePlot("lst_nobs_OR.png",type="png")
|
403
|
#
|
404
|
# plot(data_month$TMax,add=TRUE)
|
405
|
#
|
406
|
# ### Map 6: station in the region
|
407
|
#
|
408
|
# plot(tmax_predicted)
|
409
|
# plot(data_s,col="black",cex=1.2,pch=4,add=TRUE)
|
410
|
# plot(data_v,col="blue",cex=1.2,pch=2,add=TRUE)
|
411
|
#
|
412
|
# plot(tmax_predicted)
|
413
|
# plot(data_month,col="black",cex=1.2,pch=4,add=TRUE)
|
414
|
# title("Monthly ghcn station in Venezuela for 2000-2010")
|
415
|
#
|
416
|
#png...output?
|
417
|
# plot(interp_area, axes =TRUE)
|
418
|
# plot(stat_reg, pch=1, col="red", cex= 0.7, add=TRUE)
|
419
|
# plot(data_reg,pch=2,col="blue",cex=2,add=TRUE)
|
420
|
|
421
|
#### End of script ####
|