German

Zinseszins - Wiktionary - compound interest. Beyond logic

pandas / python split string by multiple delimiters

Split string with multiple delimiters in Python - Stack Overflow has this really nice idea of doing str.replace(':', '_') and then str.split('_').

Pandas split string to different columns

Series.str.split(delim) can do Series.str.split(delim, expand=True), that returns different columns instead of a list.

Also - if graphs don’t make sense, one way things have gone wrong is interpreting x and y as strings.