40 lines
735 B
Markdown
40 lines
735 B
Markdown
---
|
|
id: 5e9a093a74c4063ca6f7c15f
|
|
challengeType: 11
|
|
videoId: kj7QqjXhH6A
|
|
---
|
|
|
|
# --description--
|
|
|
|
More resources:
|
|
|
|
\- [Notebook](https://notebooks.ai/rmotr-curriculum/data-cleaning-rmotr-freecodecamp-fd76fa59)
|
|
|
|
# --question--
|
|
|
|
## --text--
|
|
|
|
The Python method `.duplicated()` returns a boolean Series for your DataFrame. `True` is the return value for rows that:
|
|
|
|
## --answers--
|
|
|
|
contain a duplicate, where the value for the row contains the first occurrence of that value.
|
|
|
|
---
|
|
|
|
contain a duplicate, where the value for the row is at least the second occurrence of that value.
|
|
|
|
---
|
|
|
|
contain a duplicate, where the value for the row contains either the first or second occurrence.
|
|
|
|
## --video-solution--
|
|
|
|
2
|
|
|
|
# --hints--
|
|
|
|
|
|
# --solutions--
|
|
|