WeaAna-class            Define the class for multiple sites
WeaAnaSite-class        Define the class of WeaAna
[,WeaAna-method         Getter to access the weather data at a specific
                        position.
changeWeatherRecords    Change weather records
convert2Records         Convert a data frame to weaana class
createWeaAna            create WeaAna class
dayLength               The time elapsed in hours between the specified
                        sun angle from 90 degree in am and pm. +ve
                        above the horizon, -ve below the horizon.
diurnalT                Calculate the diurnal variation in air
                        temperature with Parton and Logan, 1981
getWeatherRecords       Get all weather records by year range
interpolationFunction   Return a y value from a linear interpolation
                        function
readWeatherRecords      Read weather records from a file list and/or a
                        folder list
records                 Demo weather records
result-class            Define the class for statistics results
show,WeaAna-method      Show basic information of class WeaAna
siteInfor               Get site information
sphericalDistance       Calculate the sphere distance
thermalTime             Calculate thermal time using cardinal
                        temperatures
thermalTimeDaily        Calculate thermal time using cardinal
                        temperatures
thermalTimeHourly       Calculate thermal time using the hourly
                        temperature (non daily temperature)
ttest_ts                Significantly t-test with auto-correlation for
                        time serial data
writeWeatherRecords     Write weather records into file
