Profilo di
Oxana
| Nome | Oxana |
|---|---|
| Indirizzo email | diegoox902@gmail.com |
| Avatar | ![]() |
| Messaggi | 2 |
-
- 2025-12-05 08:10:54
- Re: Come gestire i valori mancanti in un dataframe Pandas?
- Forum >> Programmazione Python >> Database
- Mobo01 said @ 2023-07-27 13:58:09:I ran into a missing value issue in my DataFrame while working on a data science project using Python's panda package. I asked for assistance Scalers Data Science Project, but the problem has not yet been resolved. Numerous columns make up my dataset and some of them have missing values referred to as NaN.
Here’s a snippet of my DataFrame:
import pandas as pd # Sample DataFrame with missing values date = { 'Name': ['Alice', 'Bob', 'Charlie', 'David', 'Eve'], ‘Age’: [25, 28, None, 32, 22], ‘Score’: [85, None, 78, 92, None], 'Salary': [50000, 60000, 55000, None, 48000] } df = pd.FrameDate(date)
I want to effectively manage these missing values before proceeding with my analysis. I'm considering some options like removing lines with NaN, imputing missing values with the mean, or using interpolation.
Could someone guide me on the best approach to handle missing values in my DataFrame? In addition, I would greatly appreciate some code examples to demonstrate the implementation of the chosen method. Thanks in advance for your helpMissing values show up in almost every dataset, so you’re definitely on the right track by deciding how to handle them before you move forward. The “best” approach depends on what the data represents and how much information you can afford to lose.Here are a few simple options you can try, along with example code:
1. Remove rows that contain NaN
This works if the dataset is large and the missing values are rare.
df_clean = df.dropna()
2. Fill missing values with the mean, median, or a fixed number
This is common for numeric columns. Mean works when your data has a roughly normal distribution. Median works better when the column has outliers.
df['Age'] = df['Age'].
-
- 2025-11-22 17:49:26
- Re: Problema con le Performance in Python 3.11: Come Risolvere?
- Forum >> Programmazione Python >> Web e Reti
- NumPy and Pandas do not benefit from the interpreter changes, and they can even slow down if their compiled wheels do not match your setup.
The async slowdown you see is common. Async helps with I/O, but it does nothing for CPU work. When heavy Pandas or NumPy calls run inside async functions, they block the event loop and make everything feel slower.
The first things worth checking are:
• Reinstall NumPy and Pandas to make sure you have the right builds for 3.11.
• Move CPU-heavy work to a thread pool or process pool instead of running it inside async tasks.
• Profile again under 3.11 because some hot spots shift after an upgrade.
If you want, you can share a small slice of the code or a screenshot of your profiler results, and I can point out the specific parts slowing things down.

