Pandas Equivalent of R's which()

Question

Variations of this question have been asked before, I\'m still having trouble understanding how to actually slice a python series/pandas dataframe based on conditions that

Answer 1

And if you need an additional statement panda.Series allows you to do Operations between Series (+, -, /, , *).

Just multiplicate the indexes:

idx1 = df['lat'] == 49
idx2 = df['lng'] > 15 
idx = idx1 * idx2

new_df = df[idx]