Description Usage Arguments Details Value See Also Examples
Computes amplitude(s) and frequencies(s) of a wave form, amongst other things, based on a sampling frequency
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x |
Numeric; x position (or sample number) |
y |
numeric; y position |
sf |
numeric; sample frequency (i.e., how often was x and y sampled) in Hz |
computes amplitudes as half the distance between each successive pair of critical points (i.e., points where the derivative is zero).
a list with of the following:
a
: a numeric vector of amplitudes ('a').
pos
: a numeric vector of the position of critical points.
f
: a numeric vector of the peak-to-peak frequencies (if the first critical point is a peak) or trough-to-trough frequencies (if the first critical point is a trough).
snr
:a numeric value of the signal to noise ratio.
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