Expression
Command | Description |
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dfr agg-groups | creates an agg_groups expression
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dfr arg-where | Creates an expression that returns the arguments where expression is true.
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dfr as | Creates an alias expression.
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dfr col | Creates a named column expression.
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dfr concat-str | Creates a concat string expression.
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dfr count | creates a count expression
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dfr datepart | Creates an expression for capturing the specified datepart in a column.
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dfr expr-not | creates a not expression
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dfr implode | Aggregates a group to a Series
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dfr is-in | Creates an is-in expression.
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dfr lit | Creates a literal expression.
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dfr max | Creates a max expression or aggregates columns to their max value
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dfr mean | Creates a mean expression for an aggregation or aggregates columns to their mean value
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dfr min | Creates a min expression or aggregates columns to their min value
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dfr otherwise | completes a when expression.
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dfr std | Creates a std expression for an aggregation of std value from columns in a dataframe
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dfr sum | Creates a sum expression for an aggregation or aggregates columns to their sum value
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dfr var | Create a var expression for an aggregation
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dfr when | Creates and modifies a when expression.
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