start {stats} | R Documentation

## Encode the Terminal Times of Time Series

### Description

Extract and encode the times the first and last observations were taken. Provided only for compatibility with S version 2.

### Usage

    start(x, ...)
    end(x, ...)

### Arguments

`x` | a univariate or multivariate time-series, or a vector or matrix.
`...` | extra arguments for future methods.

### Details

These are generic functions, which will use the `tsp` attribute of `x` if it exists. Their default methods decode the start time from the original time units, so that for a monthly series `1995.5` is represented as `c(1995, 7)`. For a series of frequency `f`, time `n+i/f` is presented as `c(n, i+1)` (even for `i = 0` and `f = 1`).

### Warning

The representation used by `start` and `end` has no meaning unless the frequency is supplied.

### See Also

`ts`, `time`, `tsp`.

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