In the function norm_by_quarter, the order of first median normalizing the flux, then median normalizing the ferr results in dividing the ferr by exactly 1.0. If you reverse the order and first normalize ferr by the median of flux -- then normalize flux by the median of flux -- then the ferr is properly normalized, which effects the weights inside the fitting procedure.
mrtommyb
commented
6 years ago
In the function
norm_by_quarter, the order of first median normalizing theflux, then median normalizing theferrresults in dividing theferrby exactly 1.0. If you reverse the order and first normalizeferrby the median offlux-- then normalizefluxby the median offlux-- then theferris properly normalized, which effects the weights inside the fitting procedure.