Daily time index of solaR objects.
# S4 method for Meteo
indexD(object)
# S4 method for Sol
indexD(object)
# S4 method for G0
indexD(object)
A Meteo, Sol or G0 object (or extended).
signature(object = "Meteo")returns the index of the
data slot (a zoo object.)
signature(object = "Sol")returns the index of the
solD slot (a zoo object.)
signature(object = "G0")same as for object='Sol'
Oscar Perpiñán Lamigueiro