Frequently asked question

What does a measure value of NaN mean?

Last Published: April 25, 2020


NaN means 'Not a Number'.

You might see NaN values when using the Edit Sketch Properties dialog box to edit the vertices of a PolyLine with M values with. NaN values represent places on your PolyLine for which the measure values are not known.

Article ID:000003405

  • ArcMap 8 x

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