DataFrame
Constructor
DataFrame([data, index, columns, dtype, copy])
Two-dimensional size-mutable, potentially heterogeneous tabular data structure with labeled axes (rows and columns).
Axes
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DataFrame.as_matrix([columns]) |
Convert the frame to its Numpy-array representation. |
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Return the dtypes in this object. |
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Return the ftypes (indication of sparse/dense and dtype) in this object. |
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Return the counts of dtypes in this object. |
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Return the counts of ftypes in this object. |
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DataFrame.select_dtypes([include, exclude]) |
Return a subset of a DataFrame including/excluding columns based on their dtype. |
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Numpy representation of NDFrame |
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Return a list with the row axis labels and column axis labels as the only members. |
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Number of axes / array dimensions |
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number of elements in the NDFrame |
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Return a tuple representing the dimensionality of the DataFrame. |
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DataFrame.memory_usage([index, deep]) |
Memory usage of DataFrame columns. |
原文：http://www.cnblogs.com/dreamafar/p/6227612.html