analyzer.modules.common.column_tools¶

Attributes¶

logger

Classes¶

`Count`	Abstract base class for all analyzer modules.
`PromoteIndex`	Promote a fixed index of a nested collection to a top-level column.
`Concatenate`	Abstract base class for all analyzer modules.

Module Contents¶

analyzer.modules.common.column_tools.logger[source]¶

class analyzer.modules.common.column_tools.Count[source]¶

Bases: analyzer.core.analysis_modules.AnalyzerModule

Abstract base class for all analyzer modules. Subclasses must implement the inputs and run methods.

input_col: analyzer.core.columns.Column[source]¶

output_col: analyzer.core.columns.Column[source]¶

run(columns, params)[source]¶

inputs(metadata)[source]¶

outputs(metadata)[source]¶

class analyzer.modules.common.column_tools.PromoteIndex[source]¶

Bases: analyzer.core.analysis_modules.AnalyzerModule

Promote a fixed index of a nested collection to a top-level column.

This analyzer selects a single element at a given index from each entry of a nested (jagged) input collection and stores it as a top-level column. It is commonly used to extract leading or sub-leading objects (e.g. leading jet, first lepton) from per-event collections.

Parameters¶

input_colColumn: Column containing a nested collection (e.g. N × M objects).
output_colColumn: Column where the selected elements will be stored.
indexint, optional: Index of the element to promote from each nested collection, by default 0 (leading element).