get_dbscan_params {evprof}

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")
)

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.

Value

tibble with minPts and eps parameters, and the corresponding noise