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Detect gaps (contiguous NA runs) in assay data

Source: R/mocap-gaps.R
detectGaps.Rd

Scans the specified assay of a PhysioExperiment object for contiguous runs of NA values and returns a data.frame describing each gap.

Usage

detectGaps(pe, assay_name = "position_x")

Arguments

pe

A PhysioExperiment object

assay_name

Name of the assay to scan (default: "position_x")

Value

A data.frame with columns:

  • channel - Channel (column) name or index

  • start - Start index of the gap (1-based)

  • end - End index of the gap (1-based)

  • size - Number of consecutive NA values

References

Federolf PA (2013). "A novel approach to solve the 'missing marker problem' in marker-based motion analysis that does not require additional assumptions about the biodynamic model." Journal of Biomechanics, 46(13), 2173-2178.

See also

reportGaps(), fillGaps(), fillGapsLinear()

Examples

pe <- PhysioCore::PhysioExperiment(
  assays = S4Vectors::SimpleList(position_x = matrix(c(1, NA, NA, 4), ncol = 1)),
  colData = S4Vectors::DataFrame(label = "M1", type = "marker"),
  samplingRate = 120
)
gaps <- detectGaps(pe, assay_name = "position_x")