trackAngle | R Documentation |

Calculate the angles between subsequent 2-D coordinates using Great Circle distance (spherical) methods.

```
trackAngle(x)
## S3 method for class 'trip'
trackAngle(x)
## Default S3 method:
trackAngle(x)
```

`x` |
trip object, or matrix of 2-columns, with x/y coordinates |

If `x`

is a trip object, the return result has an extra element for the
start and end point of each individual trip, with value NA.

This is an optimized hybrid of "raster::bearing" and "maptools::gzAzimuth". New code is in the traipse package.

Vector of angles (degrees) between coordinates.

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