As ikegami said (and I haven't really dug into the code) your arrays are sparse. Meaning those values are undefined.
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It's sad that a family can be torn apart by such a such a simple thing as a pack of wild dogs

In reply to Re^3: Counting frequency of occurrence - what am I doing? by RazorbladeBidet
in thread Counting frequency of occurrence - what am I doing? by Annemarie

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