45 lines
1.3 KiB
Python
45 lines
1.3 KiB
Python
import ROOT
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def preselection(
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cuts: str = "",
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input_file: str = None,
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outfile_postfix: str = "selected",
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tree_name: str = "PrParameterisationData.PrMCDebugReconstructibleLong/Tuple",
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) -> str:
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"""Function that apply a selection to given data.
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Args:
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cuts (str, optional): String specifying the selection. Defaults to "".
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input_file (str, optional): Defaults to None.
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outfile_postfix (str, optional): Defaults to "selected".
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tree_name (str, optional): Defaults to "PrParameterisationData.PrMCDebugReconstructibleLong/Tuple".
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Returns:
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str: Path to the output file.
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"""
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rdf = ROOT.RDataFrame(tree_name, input_file)
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rdf = rdf.Filter(cuts, "Selection")
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out_file = input_file.strip(".root") + f"_{outfile_postfix}.root"
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rdf.Snapshot("Selected", out_file)
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return out_file
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if __name__ == "__main__":
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import argparse
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parser = argparse.ArgumentParser()
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parser.add_argument(
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"--input-file",
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type=str,
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help="Path to the input file",
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)
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parser.add_argument(
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"--cuts",
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type=str,
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default="chi2_comb < 5 && pt > 10 && p > 1500 && p < 100000 && pid != 11",
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help="Cuts of the preselection",
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)
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args = parser.parse_args()
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preselection(**vars(args))
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