Interpolation

The interpolation code take a very very long time to run even on the demo datasets, however using the demo datasets may have cost us some time in the long run here because after using the interpolation on the full datasets there were some more issues discovered, that there were some patients with 0 data overall, or very very little which would skew our data heavily after the interpolation. Therefore a decision was made to outright drop these patients deeming their data unusable.