get Split Coefficient
Gets the ratio of a share split taking effect within this bar's span — 2 for a two-for-one split, for instance.
Only the daily adjusted cadence reports this. The weekly and monthly adjusted cadences carry an adjusted close and a dividend but no split coefficient, so their bars leave it at 0.0 rather than at the 1.0 a genuine no-split bar carries.
Return
the split ratio; 1.0 on a daily adjusted bar with no split, and 0.0 on a bar from any other cadence