#' PrecipSummary
#'
#'
#'
#' @param data, data.frame
#' @param precipcol string representing the column in data frame with precipitation (observed, modeled, or scaled) values
#' @param comparedata, data.frame of the comparison
#' @param compprecipcol string representing the column in data frame with precipitation (observed, modeled, or scaled) values
#' @param title, string used in plot title (such as the name of the CF approach)
#' @export
precipsummary=function(data,precipcol,comparedata,compprecipcol,title=NULL){
resultsdf= data.frame(datasetA=NA,datasetB=NA,measure=c("Number of precip events","Min Precip","Mean Precip","75% Precip","90% Precip",
"95% Precip","99% Precip","Max Precip"))
if(missing(comparedata)){
precip=data[,precipcol]
resultsdf$datasetA=round(c(length(precip[precip>0]),min(precip),mean(precip),quantile(precip,0.75),quantile(precip,0.9),quantile(precip,0.95),
quantile(precip,0.99),max(precip)),digits=2)
print(resultsdf[,c(1,3)])
}else{
compareprecip=comparedata[,compprecipcol]
precip=data[,precipcol]
resultsdf$datasetA=round(c(length(precip[precip>0]),min(precip),mean(precip),quantile(precip,0.75),quantile(precip,0.9),quantile(precip,0.95),
quantile(precip,0.99),max(precip)),digits=2)
resultsdf$datasetB=round(c(length(compareprecip[compareprecip>0]),min(compareprecip),mean(compareprecip),quantile(compareprecip,0.75),quantile(compareprecip,0.9),quantile(compareprecip,0.95),
quantile(compareprecip,0.99),max(compareprecip)),digits=2)
resultsdf$Diffs=resultsdf$datasetA-resultsdf$datasetB
print(resultsdf)
diffs=resultsdf$Diffs[4:7]
plot(y=diffs,x=c(75,90,95,99),ylim=c(-75,75),xlim=c(60,100),main=title,ylab="Percent Difference from Observed",xlab="Percentile")
text(y=diffs+5, x=c(75,90,95,99), labels=round(diffs,digits=2))
}
}
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