evprof (version 1.1.2)

get_dbscan_params: Get the minPts and eps values for DBSCAN to label only a specific percentage as noise

Description

Get the minPts and eps values for DBSCAN to label only a specific percentage as noise

Usage

get_dbscan_params(
  sessions,
  MinPts,
  eps0,
  noise_th = 2,
  eps_offset_pct = 0.9,
  eps_inc_pct = 0.02,
  log = FALSE,
  start = getOption("evprof.start.hour")
)

Value

tibble with minPts and eps parameters, and the corresponding noise

Arguments

sessions

tibble, sessions data set in evprof standard format.

MinPts

DBSCAN MinPts parameter

eps0

DBSCAN eps parameter corresponding to the elbow of kNN dist plot

noise_th

noise threshold

eps_offset_pct

eps_offset_pct

eps_inc_pct

eps_inc_pct

log

logical, whether to transform ConnectionStartDateTime and ConnectionHours variables to natural logarithmic scale (base = exp(1)).

start

integer, start hour in the x axis of the plot.