I am trying to style a polygon layer as graduated according to a specific field of the polygon shapefile in QGIS.

I selected equal interval or equal count and then sort but when I clicked OK one feature is not rendered. Its value equals the upper limit of the upper class. This occurred with the other types of styling like pretty jerks too. What is the problem?

  • Floating point numbers? Possibly the value does not exactly equal the upper bound, and you are hitting a rounding / representation error in the data. – BradHards Aug 22 '16 at 0:02
  • Yes, the lower limit of the lower class has value 0.000042906 and the value of the feature which is not rendered is smaller than that. But, when I increase the precision and the lower value of the lower class is equal with the value of the feature, it is not rendered too. How can I fix it? Thanks in advance. – ilias m Aug 22 '16 at 7:41
  • This might be described in this post: How does the QGIS construct class intervals? – Joseph Aug 25 '16 at 12:31

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