python pandas select both head and tail Question: For a DataFrame in Pandas, how can I select both the first 5 values and last 5 values? For example In [11]: df Out[11]: A B C 2012-11-29 0 0 0 2012-11-30 1 1 1 2012-12-01 2 2 2 2012-12-02 3 3 3 2012-12-03 4 4 4 …
Get first row value of a given column Question: This seems like a ridiculously easy question… but I’m not seeing the easy answer I was expecting. So, how do I get the value at an nth row of a given column in Pandas? (I am particularly interested in the first row, but would be interested …
Get first element of Series without knowing the index Question: Is there any way to access the first element of a Series without knowing its index? Let’s say I have the following Series: import pandas as pd key=’MCS096′ SUBJECTS = pd.DataFrame( { "ID": pd.Series([146], index=[145]), "study": pd.Series(["MCS"], index=[145]), "center": pd.Series(["Mag"], index=[145]), "initials": pd.Series(["MCS096"], index=[145]), } …
Head and tail in one line Question: Is there a pythonic way to unpack a list in the first element and the “tail” in a single command? For example: >> head, tail = **some_magic applied to** [1, 1, 2, 3, 5, 8, 13, 21, 34, 55] >> head 1 >>> tail [1, 2, 3, 5, …
