Sporadically sampled data

[Shaun Jackman]

I have data sampled sporadically from a function x = f(t); I have vectors t and 
x. Does Matlab have any functions to deal with sporadically sampled data?

I want to calculate a moving average (a sliding window) of my data. If I had 
periodically sampled data, I would use hanning and conv. Right now I'm 
converting my sporadically sampled data to periodically sampled data by...

p(t) = x;
y = conv(p, hanning(n));

This is not ideal though, because there are gaps in the sampling data, and 
assuming those gaps are 0 (or the mean) is not ideal.

My current thought to improve on this is select all the data points that fall 
within a sliding window using `find`, calculate the mean (or some weighted mean 
based on position in the window) of the data points in that window, and repeat 
in a loop. Before I proceed down this path, I wanted to know if Octave has any 
functions to deal with this sort of data.

Thanks,
Shaun