Description Usage Arguments Details Value

Create a flighttrajectory object from the flight info.

1 2 | ```
createTrajectory(longitude, latitude, altitude = 0, timestamp = NULL,
bearing = NULL, groundspeed = NULL)
``` |

`longitude` |
Required; numeric vector giving aircraft longitude in degrees. |

`latitude` |
Required; numeric vector giving aircraft latitude in degrees. |

`altitude` |
Optional; numeric vector giving aircraft altitude (AGL) in feet. If missing, it will be set to 0. |

`timestamp` |
Optional; numeric vector giving the time of each observation in seconds. If missing, the observation period is assumed to be 1 s. |

`bearing` |
Optional; numeric vector giving the current bearing in degrees. If missing, it is estimated using pairs of successive lon/lat observations. |

`groundspeed` |
Optional; numeric vector giving the current ground speed of the aircraft in knots. If missing, it is estimated using pairs of successive lon/lat observations. |

`longitude`

and `latitude`

must be the same length.
`timestamp`

, `bearing`

, and `groundspeed`

, if present, must
also match this length. `altitude`

must also have a length equal to
these parameters or be scalar.

A flighttrajectory object encapsulating these parameters (with default values substituded as necessary).

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