Fix: handle num=1 in RangeIndex.linspace to match numpy behavior#11403
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Fix: handle num=1 in RangeIndex.linspace to match numpy behavior#11403syu-toutousai wants to merge 1 commit into
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When num=1, RangeIndex.linspace raised ZeroDivisionError because it divided by (num - 1). NumPy's linspace returns a single-element array at the start value in this case. This fix aligns the behavior. Fixes pydata#11397
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Description
RangeIndex.linspaceraisesZeroDivisionErrorwhen called withnum=1because it divides by(num - 1)whenendpoint=True.numpy.linspacehandles this case by returning a single-element array at thestartvalue.This fix adds an early return when
num == 1, settingstop = startto produce a single-element RangeIndex, matching numpy's behavior.Changes
xarray/indexes/range_index.py: Addednum == 1guard inlinspacemethodTesting
Fixes #11397
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