Minimum size filter
A minimum size filter ignores gaps smaller than a chosen size, so only wider gaps are marked.
Definition
A minimum size filter ignores gaps smaller than a chosen size, so only wider gaps are marked.
The plain rule on this site has no filter, so it counts every gap however small. Many indicators add a filter, often tied to the average range. A filter changes the counts a great deal, so a number is only comparable when the filter is the same.