Command | Description |
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dfr agg | Performs a series of aggregations from a group-by.
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dfr cache | Caches operations in a new LazyFrame
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dfr collect | Collect lazy dataframe into eager dataframe.
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dfr fetch | collects the lazyframe to the selected rows.
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dfr fill-nan | Replaces NaN values with the given expression.
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dfr fill-null | Replaces NULL values with the given expression.
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dfr filter | Filter dataframe based in expression.
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dfr filter-with | Filters dataframe using a mask or expression as reference.
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dfr group-by | Creates a group-by object that can be used for other aggregations.
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dfr into-lazy | Converts a dataframe into a lazy dataframe.
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dfr join | Joins a lazy frame with other lazy frame.
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dfr max | Creates a max expression
Aggregates columns to their max value
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dfr mean | Creates a mean expression for an aggregation
Aggregates columns to their mean value
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dfr median | Creates a median expression for an aggregation
Aggregates columns to their median value
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dfr min | Creates a min expression
Aggregates columns to their min value
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dfr quantile | Aggregates the columns to the selected quantile.
Aggregates the columns to the selected quantile.
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dfr rename | Rename a dataframe column.
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dfr reverse | Reverses the LazyFrame
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dfr select | Selects columns from lazyframe.
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dfr shift | Shifts the values by a given period.
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dfr sort-by | sorts a lazy dataframe based on expression(s).
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dfr std | Creates a std expression for an aggregation
Aggregates columns to their std value
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dfr sum | Creates a sum expression for an aggregation
Aggregates columns to their sum value
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dfr unique | Returns unique values from a dataframe.
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dfr var | Create a var expression for an aggregation
Aggregates columns to their var value
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dfr with-column | Adds a series to the dataframe.
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