Compute indices of reference value using Date class
refvalIdxByDate.Rd
The reference values are formed based on computations
of seq
for Date class arguments.
Arguments
- t0
A Date object describing the time point
- b
Number of years to go back in time
- w
Half width of window to include reference values for
- epochStr
One of
"1 month"
,"1 week"
or"1 day"
- epochs
Vector containing the epoch value of the sts/disProg object
Details
Using the Date class the reference values are formed as follows:
Starting from t0
go i, i= 1,...,b
years back in time.
For each year, go w
epochs back and include from here to
w
epochs after t0
.
In case of weeks we always go back to the closest Monday of this date. In case of months we also go back in time to closest 1st of month.