diveMove (version 1.1)

detDive-internal: Detect dives from depth readings

Description

Identify dives in TDR records based on a dive threshold.

Usage

.detDive(zdepth, act, dive.thr)

Arguments

zdepth

Vector of zero-offset corrected depths.

act

Factor as long as depth coding activity, with levels specified as in .detPhase.

dive.thr

Threshold depth below which an underwater phase should be considered a dive.

Value

• A data frame with the following elements for .detDive
• dive.id
  Numeric vector numbering each dive in the record.
• dive.activity
  Factor with levels L, W, U, D, and Z, see .detPhase. All levels may be represented.
• postdive.id
  Numeric vector numbering each postdive interval with the same value as the preceding dive.

See Also

.detPhase, .zoc

Examples

data(divesTDRcalibrate)

tdr <- getTDR(divesTDRcalibrate)

## Extract the gross activity from an already calibrated TDR object
gross.act <- getGAct(divesTDRcalibrate)
detd <- diveMove:::.detDive(getDepth(tdr), gross.act[[2]], 3)