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This is a freeware for making statistical calculations.
The software Assistat makes variance analysis (ANOVA) and it classifies the averages for the Tukey Test, SNK Test, t Test, Duncan Test, Dunnet Test and Scott-Knott Test. It counts with regression in the variance analysis, correlation between variables, test of the coefficient of correlation (r), Cochran Test, Bartlett Test, Mann-Whitney Test, Friedman Test, Kruskal-Wallis Test, normality tests (Kolmogorov-Smirnov, Shapiro-Wilk, Cramer-von Mises, Anderson-Darling, Kuiper, Lilliefors and Watson) and test of series fit (Kolmogorov-Smirnov method). It makes Principal Components Analysis (PCA), Polinomial Regression for the case of quantitative treatments in Factorial Experiments, Subdivided Parcels Experiments and Subsubdivided Parcels Experiments. It analyzes Factorial Experiments with additional treatments and Randomized Blocks Experiment with repetitions.
It also applies Analytic Hierarchy Process (AHP).