lookup_neighbour_indices: Index base nearest neighbour query
In rossklin/dynpan: Dynamics estimation for multiple time series

Find indices and time values of nearest neighbour points

1	lookup_neighbour_indices(tt, points, k, only.indices = TRUE, ...)

`tt`	`time.table` in which to look for points
`points`	points close to which to find neighbours
`k`	number of (closest) neighbours to find for each point
`only.indices`	whether to return only index values (rather than all columns) of the found neighbours
`...`	arguments passed on to `knn_lookup`

Uses a precomputed (for example by flanner_by_measurement) indexing structure if available.

The returned data.table has the index and time columns of tt if only.indices is true, otherwise it has all columns of tt.

Any columns in points not used for lookup are copie over to the relevant rows of the resulting data.frame (useful for, for example, including keys/indices into the original points data.table).

rossklin/dynpan documentation built on May 27, 2019, 11:39 p.m.