2024-heraklion-data/notebooks/030_tabular_data/011_pandas_introduction_tutor.ipynb

Pandas, quick introduction¶

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import pandas as pd

Pandas introduces a tabular data structure, the DataFrame¶

• Columns can be of any C-native type
• Columns and rows have indices, i.e. labels that identify each column or row

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df = pd.DataFrame(
    data = [
        ['Anthony', 28, 1.53], 
        ['Maria', 31, 1.76], 
        ['Emma', 26, 1.83], 
        ['Philip', 41, 1.81], 
        ['Bill', 27, None],
    ],
    columns = ['name', 'age', 'height'],
    index=['A484', 'C012', 'A123', 'B663', 'A377'],
)

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df

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DataFrame attributes¶

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Indexing rows and columns¶

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Examining a column¶

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Filtering¶

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Basic operations are by column (unlike NumPy)¶

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Operations on strings¶

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Adding new columns¶

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