paskhaver / pandas-in-action Goto Github PK

Incorrect description of the operation for pct_change. Text states:
'adds the last index's value and the current index's value', Figure 2.3 on pg 40 shows the difference.

I think this repo would benefit from having a requirements.txt file in order to be able to install all required packages in one go.

Incorrect output of the dataframe.

chapter_03_series_methods.ipynb
the code in the In [4]

pd.read_csv("pokemon.csv", index_col = "Pokemon", squeeze = True)

will prompt like this:

FutureWarning: The squeeze argument has been deprecated and will be removed in a future version. Append .squeeze("columns") to the call to squeeze.

according to Pandas docs, in Pandas 1.4.0 and later, it should be revised as

pd.read_csv('pokemon.csv', index_col='Pokemon').squeeze(1)

I think the statement on pg 91 is incorrect:
'find the five youngest players in nba without using the nsmallest method?'

To find the five youngest players we would need to use the nlargest method. The nlargest on datetimes produces the latest values.