Fill gaps using autoregressive modeling

`fillgaps(___)`

with no output
arguments plots the original samples and the reconstructed signal.
This syntax accepts any input arguments from previous syntaxes.

[1] Kay, Steven M. *Modern Spectral Estimation:
Theory and Application*. Englewood Cliffs, NJ: Prentice
Hall, 1988.

[2] Orfanidis, Sophocles J. *Optimum Signal Processing:
An Introduction*. 2nd Edition. New York: McGraw-Hill, 1996.

[3] Akaike, Hirotugu. “Fitting Autoregressive Models
for Prediction.” *Annals of the Institute of Statistical
Mathematics*. Vol. 21, 1969, pp. 243–247.