TOneDReader.patternMatchVariance Method
Definition
Determines how closely a set of observed counts of runs of black/white values matches a given target pattern. This is reported as the ratio of the total variance from the expected pattern proportions across all pattern elements, to the length of the pattern.
Delphi
class function patternMatchVariance(counters: TArray<Integer>; pattern: TOneDPattern; maxIndividualVariance: Integer): IntegerParameters
- counters
- TArray<Integer>
observed counters
- pattern
- TOneDPattern
expected pattern
- maxIndividualVariance
- Integer
The most any counter can differ before we give up
Returns
Integer
ratio of total variance between counters and pattern compared to total pattern size, where the ratio has been multiplied by 256. So, 0 means no variance (perfect match); 256 means the total variance between counters and patterns equals the pattern length, higher values mean even more variance