tsp {stats}R Documentation

Tsp Attribute of Time-Series-like Objects

Description

tsp returns the tsp attribute (or NULL). It is included for compatibility with S version 2. tsp<- sets the tsp attribute. hasTsp ensures x has a tsp attribute, by adding one if needed.

Usage

tsp(x)
tsp(x) <- value
hasTsp(x)

Arguments

x a vector or matrix or univariate or multivariate time-series.
value a numeric vector of length 3 or NULL.

Details

The tsp attribute was previously described here as c(start(x), end(x), frequency(x)), but this is incorrect. It gives the start time in time units, the end time and the frequency.

Assignments are checked for consistency.

Assigning NULL which removes the tsp attribute and any "ts" class of x.

References

Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) The New S Language. Wadsworth & Brooks/Cole.

See Also

ts, time, start.


[Package stats version 2.1.0 Index]