datatable API¶
Symbols listed here are available for import from the root of the datatable
module.
Submodules¶
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Access to some internal details of |
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Mathematical functions, similar to python’s |
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A small set of data analysis tools. |
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Functions using regular expressions. |
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Functions for working with string columns. |
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Functions for working with date/time columns. |
Classes¶
Main “table of data” class. This is the equivalent of pandas’ or Julia’s
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Helper class for computing formulas over a frame. |
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Helper class for addressing columns in a frame. |
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Column’s type, similar to numpy’s |
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[DEPRECATED] Enum of column “storage” types. |
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[DEPRECATED] Enum of column “logical” types. |
Functions¶
Read CSV/text/XLSX/Jay/other files |
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Same as |
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Group-by clause for use in Frame’s square-bracket selector |
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Join clause for use in Frame’s square-bracket selector |
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Sort clause for use in Frame’s square-bracket selector |
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Create new or update existing columns within a frame |
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Combine frames by columns |
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Combine frames by rows |
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Concatenate frame by rows |
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Cast column into another type |
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Ternary if operator |
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Shift column by a given number of rows |
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Bin a column into equal-width intervals |
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Bin a column into equal-population intervals |
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[DEPRECATED] Split and nhot-encode a single-column frame |
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Inject datatable’s stylesheets into the Jupyter notebook |
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Row-wise all() function |
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Row-wise any() function |
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Calculate the number of non-missing values per row |
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Find the first non-missing value row-wise |
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Find the last non-missing value row-wise |
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Find the largest element row-wise |
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Calculate the mean value row-wise |
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Find the smallest element row-wise |
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Calculate the standard deviation row-wise |
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Calculate the sum of all values row-wise |
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Calculate the set intersection of values in the frames |
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Calculate the set difference between the frames |
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Calculate the symmetric difference between the sets of values in the frames |
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Calculate the union of values in the frames |
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Find unique values in a frame |
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Calculate correlation between two columns |
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Count non-missing values per a column |
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Calculate covariance between two columns |
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Find the largest element per a column |
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Calculate mean value per a column |
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Find the median element per a column |
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Find the smallest element per a column |
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Calculate the standard deviation per a column |
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Calculate the sum of all values per a column |
Other¶
Information about the build of the |
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The |
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The primary namespace used during |
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Secondary namespace used during |
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