First processing steps

utils/df_utils.py

@@ -0,0 +1,8 @@
+import pandas as pd
+
+def slice_df(df, slice_positions):
+    sliced_dfs = [df[:slice_positions[0]-1].copy(deep=True)]
+    for i in range(len(slice_positions)-1):
+        sliced_dfs.append(df[slice_positions[i]-1:slice_positions[i+1]-1].copy(deep=True))
+    sliced_dfs.append(df[slice_positions[-1]-1:].copy(deep=True))
+    return sliced_dfs