KwickClips Python · 41 sec · free
Why does 88 become 88.0 in a DataFrame?
Short answer. The other row is missing a value, so pandas fills NaN and the column goes decimal.
In a dictionary of lists, what do the keys become?
The column names.
Remember
| Dict of lists: key = column |
| Dict of Series: labels match |
| List of dicts: one per row |
Why did eighty eight become eighty eight point zero? Each dictionary in r is one row. The empty one gives N a N, so the column goes decimal. Dictionary of lists: keys are columns. Series: labels match. List of dictionaries: a row each.
This clip is from the full lesson: Pandas DataFrame: Create, Access and Modify — 6 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 12 Informatics Practices (065), CBSE Class 12 Informatics Practices (065), CBSE Class 12 Informatics Practices (065), CBSE Class 12 Informatics Practices (065)
More KwickClips from this lesson
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What is the difference between loc and iloc?42 sec
How do you loop over DataFrame rows?38 secVoice-over is AI-generated; the script is written and checked by Kajal Ma'am. Confirm anything you plan around against your official board document. We never ask for a password or an OTP.

