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Shortcuts to Python Data Analysis: Save Time and Effort

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2024-03-15 15:55:11701browse

Python 数据分析的捷径:节省时间和精力

  • Use the chunksize<strong class="keylink"> parameter of </strong>pandas.read_csv() to load large files in chunks.
  • Consider using tools such as dask for parallel loading to increase speed.

Accelerate data preprocessing

  • Use the vectorize function of numpy to convert the python function into a NumPy array operation.
  • Use the .apply() and .map() methods of pandas to perform operations in parallel.
  • Convert data types to optimize calculations, such as using pandas.to_numeric() to convert an object to a number.

Improve computing performance

  • Compile Python code using numba for speed.
  • Utilize joblib for parallel computing to distribute tasks on multiple CPUs.
  • Consider using a cloud computing platform such as AWS or Azure for greater computing power.

Optimize data visualization

  • Use matplotlib's pyplot.show(block=False) option to draw the graph in the background.
  • Consider using an interactive visualization library such as plotly for richer visualizations.
  • Explore advanced visualization libraries like seaborn to create complex and informative charts.

Utilize ready-made resources

  • Utilize machine learning and statistical algorithms from libraries such as scikit-learn, statsmodels and scipy .
  • Use tools from the PyData ecosystem, such as pandas, NumPy, and Jupyter Notebook, to access a wide range of analytical capabilities and Community support.

Automated tasks

  • Using Python Scripts Automate repetitive tasks such as data extraction, preprocessing and analysis.
  • Explore workflow management tools like <strong class="keylink">ai</strong>rflow to create complex data pipelines.

Other tips

  • Optimize code to reduce memory usage and improve efficiency.
  • Use debuggers and performance analysis tools to identify bottlenecks and fix them.
  • LearnAdvanced Python features such as list comprehensions, generators, and lambda expressions to simplify your code.
  • Join online communities and forums to gain insights and support from other data analysts.

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