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Plot EMG Signal and Envelope

Source: R/emg-plot.R
plotEmgEnvelope.Rd

Plots the raw signal and its amplitude envelope for one channel, optionally shading the resting noise floor from emgQualityCheck().

Usage

plotEmgEnvelope(
  x,
  channel = 1,
  method = "rms",
  window_ms = 50,
  qc = TRUE,
  assay_name = NULL
)

Arguments

x

A PhysioExperiment object with EMG data.

channel

Channel index or label to plot (default: 1).

method

Envelope method passed to emgEnvelope() (default: "rms").

window_ms

Envelope window in ms (default: 50).

qc

If TRUE (default), shade the resting noise floor and annotate SNR.

assay_name

Input assay name (default: first assay).

Value

A ggplot object.

References

De Luca, C.J. (1997). "The use of surface electromyography in biomechanics." Journal of Applied Biomechanics, 13(2), 135-163. doi:10.1123/jab.13.2.135

See also

emgEnvelope(), emgQualityCheck()

Examples

pe <- make_emg(n_time = 2000, n_channels = 1)
plotEmgEnvelope(pe)