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I need a memory efficient way to zero pad uneven array size per event according to largest array in a tree. Is there any way available to do that in uproot?

Debottam Bakshi Gupta
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1 Answers1

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jagged_array.pad(max_length).fillna(0)

If you need to find the maximum, you can

jagged_array.counts.max()

If you then need to turn it into pure NumPy, use regular().

Jim Pivarski
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