ts object from a tis
object. The tis object's starting year, starting
cycle, and frequency, along with the object's data, in a
call to the ts function.## S3 method for class 'tis':
as.ts(x, ...)tis object to be convertedts object with the same data as x, and with
starting time and frequency given by:
start = c(year(xstart), cycle(xstart))
frequency = frequency(x)tis class covers more frequencies than the ts
class does, so the conversion may not be accurate.as.ts