Remove baseline

Subtracts baseline from a specified time window.

Usage

removeBaseline(
  pe,
  baseline_start,
  baseline_end,
  assay_name = NULL,
  output_assay = "baseline_corrected"
)

Arguments

pe

A PhysioExperiment object.

baseline_start

Start time of baseline window in seconds.

baseline_end

End time of baseline window in seconds.

assay_name

Name of the assay to baseline correct.

output_assay

Name for the baseline-corrected output assay.

Value

PhysioExperiment with baseline-corrected data.

References

Oppenheim AV, Willsky AS, Nawab SH (1997). "Signals and Systems." 2nd ed. Prentice Hall.

See also

detrendSignals() for trend removal, baselineCorrect() for epoch-based baseline correction, filterSignals() for moving average smoothing.

Examples

pe <- PhysioExperiment(
  assays = list(raw = matrix(rnorm(1000) + 5, nrow = 100, ncol = 10)),
  colData = S4Vectors::DataFrame(label = paste0("Ch", 1:10)),
  samplingRate = 100
)
pe_corrected <- removeBaseline(pe, baseline_start = 0, baseline_end = 0.2)