This will generate a signal on a specific timestamp or at a
specific time every day, week, weekday, etc.
Usage
sigTimestamp(label, data = mktdata, timestamp, on = "days")
Arguments
label
text label to apply to the output
data
data to apply formula to
timestamp
either a POSIXct-based object, or a
character string denoting a 24-hour time (e.g. "09:00",
"16:00")
on
only used if timestamp is character;
passed to split.xts, therefore
on may be a character describing the time period
as listed in endpoints, or a vector
coercible to factor (e.g. .indexday)