Weather and Severity
weatherSeverity( weather, severity, dates, EmergDate, EndEpidDate, NoReadingsH, RHthreshold )
weather | object, see example |
---|---|
severity | object, see example |
dates | vector dates |
EmergDate | date |
EndEpidDate | date |
NoReadingsH | num, 1 |
RHthreshold | num, percentage |
"Date","Rainfall","Tmp","HumidHrs","humidtmp"
"Cultivar","ApplSys","dates","nday","MeanSeverity","StDevSeverity"
date
date
Weather and severity
All format data for date is yyyy-mm,dd, for example "2000-04-22". change with function as.Date()
library(agricolae) f <- system.file("external/weather.csv", package="agricolae") weather <- read.csv(f,header=FALSE) f <- system.file("external/severity.csv", package="agricolae") severity <- read.csv(f) weather[,1]<-as.Date(weather[,1],format = "%m/%d/%Y") # Parameters dates and threshold dates<-c("2000-03-25","2000-04-09","2000-04-12","2000-04-16","2000-04-22") dates<-as.Date(dates) EmergDate <- as.Date('2000/01/19') EndEpidDate <- as.Date("2000-04-22") dates<-as.Date(dates) NoReadingsH<- 1 RHthreshold <- 90 #-------------------------- WS<-weatherSeverity(weather,severity,dates,EmergDate,EndEpidDate, NoReadingsH,RHthreshold)