Oliver Eyton-Williams ee1e8abd87
feat(curriculum): restore seed + solution to Chinese (#40683)
* feat(tools): add seed/solution restore script

* chore(curriculum): remove empty sections' markers

* chore(curriculum): add seed + solution to Chinese

* chore: remove old formatter

* fix: update getChallenges

parse translated challenges separately, without reference to the source

* chore(curriculum): add dashedName to English

* chore(curriculum): add dashedName to Chinese

* refactor: remove unused challenge property 'name'

* fix: relax dashedName requirement

* fix: stray tag

Remove stray `pre` tag from challenge file.

Signed-off-by: nhcarrigan <nhcarrigan@gmail.com>

Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
2021-01-12 19:31:00 -07:00

1.3 KiB

id, challengeType, videoId, dashedName
id challengeType videoId dashedName
5e9a093a74c4063ca6f7c15b 11 BFlH0fN5xRQ pandas-conditional-selection-and-modifying-dataframes

--description--

More resources:

- Notebook

--question--

--text--

What will the following code print out?

import pandas as pd

certificates_earned = pd.DataFrame({
    'Certificates': [8, 2, 5, 6],
    'Time (in months)': [16, 5, 9, 12]
})
names = ['Tom', 'Kris', 'Ahmad', 'Beau']

certificates_earned.index = names
longest_streak = pd.Series([13, 11, 9, 7], index=names)
certificates_earned['Longest streak'] = longest_streak

print(certificates_earned)

--answers--

Tom      13
Kris     11
Ahmad     9
Beau      7
Name: Longest streak, dtype: int64

      Certificates  Time (in months)  Longest streak
Tom               8                16              13
Kris              2                 5              11
Ahmad             5                 9               9
Beau              6                12               7

      Certificates   Longest streak
Tom               8               13
Kris              2               11
Ahmad             5                9
Beau              6                7

--video-solution--

2