vstack

Pandas Dataframe to Numpy Vstack Array by Unique Column Value Question: I have a dataframe with following structure: import numpy as np import pandas as pd data = {‘Group’:[‘1’, ‘1’, ‘2’, ‘2’, ‘3’, ‘3’], ‘Value’:[1, 2, 3, 4, 5, 6]} df = pd.DataFrame(data) I need to convert that dataframe (which has approx 4000 values per …