some backfits are poorly aligned in plotting

[judgemt]

error appears to be sporadic and not common, but noticable when zooming in. Strangely, the intensities of these fits appear correct, but they appear shifted.

[judgemt]

this was because the fit optimization result was not used to set spec.start and spec.end in backfit_rfs3(). This should now be fixed.

[judgemt]

lags did not match the fits

[judgemt]

e.g. we were supposed to get this:

but instead would get something like this:

[judgemt]

Just tested specific problematic fits again by re-running backfit_rfs3(), and the issue appears to be resolved. It is not in the fit reconstruction or plotting functions, nor does it have anything to do with matching (for these examples). see troubleshooting_fits.R push from today.