Resample a single numeric vector

Resamples a numeric vector from one sampling rate to another using interpolation.

Usage

resampleVector(x, from_rate, to_rate, method = c("linear", "spline"))

Arguments

x

Numeric vector to resample.

from_rate

Original sampling rate in Hz.

to_rate

Target sampling rate in Hz.

method

Interpolation method: "linear" uses approx, "spline" uses spline.

Value

A numeric vector resampled at the target rate.

References

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

See also

resampleSignal() for resampling PhysioExperiment objects, synchronizeSignals() for synchronizing multiple signals.

Examples

# Resample a 100Hz signal to 200Hz
x <- sin(seq(0, 2 * pi, length.out = 100))
x_up <- resampleVector(x, from_rate = 100, to_rate = 200)
length(x_up)  # 200
#> [1] 199