Function for highest() and lowest()
Notas de prensa:
updated code for V4, code in cooperation with @LucF.
theres 2:
1. version that supports high length values.
2. error's with high length values, but maps initial range(bar_index=0 to length).
theres 2:
1. version that supports high length values.
2. error's with high length values, but maps initial range(bar_index=0 to length).