View source: R/CENTROIDS-pam.R

pam_cent | R Documentation |

Extract the medoid time series based on a distance measure.

pam_cent( series, distance, ids = seq_along(series), distmat = NULL, ..., error.check = TRUE )

`series` |
The time series in one of the formats accepted by |

`distance` |
A character indicating which distance to use. Only needed if |

`ids` |
Integer vector indicating which of the |

`distmat` |
Optionally, a pre-computed cross-distance matrix of |

`...` |
Any extra parameters for the |

`error.check` |
Logical indicating whether the function should try to detect inconsistencies and give more informative errors messages. Also used internally to avoid repeating checks. |

The medoid's index is determined by taking the *arg min* of the `distmat`

's row-sums
(considering only the rows in `ids`

). The distance matrix is calculated if needed.

The medoid time series.

# Computes the distance matrix for all series pam_cent(CharTraj, "dtw_basic", ids = 6L:10L, window.size = 15L) # series_id = 7L # Computes the distance matrix for the chosen subset only pam_cent(CharTraj[6L:10L], "dtw_basic", window.size = 15L) # series_id = 2L

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