signal_fill function

Fill NA-gaps of a signal

This function performs linear interpolation of NA values or pads them with zeros.

signal_fill(data, method = "linear")

Arguments

• data: eseis object, numeric vector or list of objects, data set to be processed.

• method: Character value, method to use for filling the data gap. One out of "linear" (linear interpolation) and "zeros"

  (padding with zeros). Default is "linear".

Returns

eseis object, numeric vector or list of objects, gap-filled data set(s).

Details

Note that the procedure will contaminate the signal by artefacts as increasingly larger data gaps are filled with interpolated or zero values.

Examples

## create synthetic data set and add NA-gaps
data(rockfall)
x <- rockfall_z[25000:26000]
x_gap <- x
x_gap[100:102] <- NA
x_gap[500:530] <- NA

## fill gaps
y <- signal_fill(data = x_gap)

## plot filled data set
plot(y, type = "l")

## filter both data sets
x <- signal_filter(data = x, f = c(1, 3), dt = 1/200, lazy = TRUE)
y <- signal_filter(data = y, f = c(1, 3), dt = 1/200, lazy = TRUE)

## plot both data sets
plot(y, type = "l", col = "grey", lwd = 3)
lines(x, col = "red")

Author(s)

Michael Dietze