Difference between revisions of "Talk:Outlier-skewness index"
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== Problems or solutions == | == Problems or solutions == | ||
::::* '' | ::::* ''OSI'' and Pearson's 2 coefficient are zero when average equals median. | ||
::::* '' | ::::* ''OSI'' and Pearson's 2 coefficient are invariant when the data set is multiplied by a constant factor. | ||
::::* '' | ::::* ''OSI'' but not Pearson's 2 coefficient correlates with the coefficient of variation (average/SD) when the data set is baseline corrected by a constant factor. ''OSI'' changes after a data set is baseline corrected by a constant factor, which changes ''x'' at a given SD. This does not affect Pearson's 2 index. | ||
::::* ''OSI'' changes from flux control ratio ''Y''/''Z'' to flux control efficiency 1-''Y''/''Z'', which changes ''x'' at a given SD. This does not affect Pearson's 2 index. In both cases the sign is changed. | |||
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Latest revision as of 10:53, 19 June 2021
Problems or solutions
- OSI and Pearson's 2 coefficient are zero when average equals median.
- OSI and Pearson's 2 coefficient are invariant when the data set is multiplied by a constant factor.
- OSI but not Pearson's 2 coefficient correlates with the coefficient of variation (average/SD) when the data set is baseline corrected by a constant factor. OSI changes after a data set is baseline corrected by a constant factor, which changes x at a given SD. This does not affect Pearson's 2 index.
- OSI changes from flux control ratio Y/Z to flux control efficiency 1-Y/Z, which changes x at a given SD. This does not affect Pearson's 2 index. In both cases the sign is changed.