[DefaultValueAttribute(-1)]
[RefreshPropertiesAttribute(RefreshProperties.Repaint)]
[XmlAttributeAttribute]
public double NormalizationInterval { get; set; }

<DefaultValueAttribute(-1)> _
<RefreshPropertiesAttribute(RefreshProperties.Repaint)> _
<XmlAttributeAttribute> _
Public Property NormalizationInterval As Double
	Get
	Set

When histograms with non-uniform intervals are generated, each interval is typically normalized such that each interval height represents the same frequency per unit width. This preserves the most appropriate histogram shape. The normalization interval width is the width to which all other intervals are normalized. Intervals with the same width as the normalization width, will have a height which directly indicates its value.