mirror of
https://github.com/freeCodeCamp/freeCodeCamp.git
synced 2026-01-17 03:07:50 -05:00
63 lines
1.1 KiB
Markdown
63 lines
1.1 KiB
Markdown
---
|
|
id: 5e9a093a74c4063ca6f7c15d
|
|
title: Introducción a la limpieza de datos
|
|
challengeType: 11
|
|
videoId: ovYNhnltVxY
|
|
bilibiliIds:
|
|
aid: 250574398
|
|
bvid: BV1Pv411A7GN
|
|
cid: 409018611
|
|
dashedName: data-cleaning-introduction
|
|
---
|
|
|
|
# --description--
|
|
|
|
*En lugar de usar notebooks.ai como se muestra en el vídeo, puede utilizar Google Colab en su lugar.*
|
|
|
|
Más recursos:
|
|
|
|
- <a href="https://github.com/ine-rmotr-curriculum/data-cleaning-rmotr-freecodecamp" target="_blank" rel="noopener noreferrer nofollow">Notebooks en GitHub</a>
|
|
- <a href="https://colab.research.google.com/github/googlecolab/colabtools/blob/master/notebooks/colab-github-demo.ipynb" target="_blank" rel="noopener noreferrer nofollow">Cómo abrir Notebooks desde GitHub utilizando Google Colab.</a>
|
|
|
|
# --question--
|
|
|
|
## --text--
|
|
|
|
¿Qué imprimirá el siguiente código?
|
|
|
|
```py
|
|
import pandas as pd
|
|
import numpy as np
|
|
|
|
s = pd.Series(['a', 3, np.nan, 1, np.nan])
|
|
|
|
print(s.notnull().sum())
|
|
```
|
|
|
|
## --answers--
|
|
|
|
3
|
|
|
|
---
|
|
|
|
<pre>0 True
|
|
1 True
|
|
2 False
|
|
3 True
|
|
4 False
|
|
dtype: bool</pre>
|
|
|
|
---
|
|
|
|
<pre>0 False
|
|
1 False
|
|
2 True
|
|
3 False
|
|
4 True
|
|
dtype: bool</pre>
|
|
|
|
## --video-solution--
|
|
|
|
1
|
|
|