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:numbered: | ||
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numpy | ||
pandas | ||
matplot | ||
scipy | ||
sympy | ||
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pandas | ||
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NumPy 的 ndarray 数据处理要求数据类型一致,且不能缺失,不可为数据项添加额外标签等,为了解决 ndarray 的强类型限制,Panda 对 NumPy 的 ndarray 对象进行了扩展。 | ||
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建立在 NumPy 数组结构上的 Pandas, 提供了 Series 和 DataFrame 对象,为极度繁琐和耗时的“数据清理”(data munging)任务提供了捷径。 | ||
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笔者环境使用的 pandas 版本为 0.20.3,使用 Anaconda 提供的集成数据处理环境。 | ||
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.. code-block:: python | ||
:linenos: | ||
:lineno-start: 0 | ||
import pandas as pd | ||
print(pd.__version__) | ||
>>> | ||
0.20.3 | ||