6533b85afe1ef96bd12b9f87

RESEARCH PRODUCT

Computing Sum of Products about the Mean with Pairwise Algorithms

J. Gabriel MolinaPedro ValeroJaime Sanmartín

subject

Data setIndividual dataCanonical normal formSample (statistics)Pairwise comparisonComputational algorithmPsychologyAlgorithmGeneral PsychologyTest data

description

We discuss pairwise algorithms, a kind of computational algorithm which can be useful in dynamically updating statistics as new samples of data are collected. Since test data are usually collected through time as individual data sets, these algorithms would be profitably used in computer programs to treat this situation. Pair-wise algorithms are presented for calculating the sum of products of deviations about the mean for adding a sample of data (or removing one) to the whole data set.

https://doi.org/10.2466/pr0.1997.81.3f.1387