Tutorials - Statistical Methods

Subject | Components | Tutorial | Dataset |

Descriptive StatisticsSome descriptive statistics on an dataset. |
Data importation wizard Dataset Define Status Univariate continuous stat Univariate discrete stat Group characterization |
breast | |

Correlation CoefficientLinear Correlation Coefficient. Significance testing. Partial Correlation. |
Dataset Define Status Linear Correlation Residual Scores |
cars | |

Measures of association for nominal variablesContingency/crosstabulation table, Chi-square test of independence, PRE measures. |
Dataset Define Status Linear Correlation Goodman Kruskal Lambda Goodman Kruskal Tau Theil U |
cars consumption | |

Association measure for ordinal variablesContingency table, pairwise comparison, concordant and discordant pairs : Goodman and Kruskal's Gamma, Kendall's Tau-b and Tau-c de Kendall, Sommers' d. |
Dataset Define Status Linear Correlation Goodman Kruskal Gamma Kendal tau-b Kendal tau-c Sommers d |
blood pressure | |

Nonparametric StatisticsUsing nonparametric statistics for studying household behavior, including: Mann-Whitney, Kruskal-Wallis, Spearman's rho,
Kendall's tau, sign test, Wilcoxon matched-samples test |
Nonparametric Statistics Test |
nonparametric statistics data | |

ANOVA -- Test of equality of variancesANOVA : compare gear diameter from various batches Tests for equality of variances. |
ANOVA Bartlett's / Levene's / Brown & Forsythe's tests for equality of variances |
GEAR dataset (from NIST) | |

Two-sample T-TestTwo-sample T-TEST for Equal mean: to compare the consumption of vehicles according to their origin. |
T-Test Equal & Unequal Variances |
AUTO83B dataset (from NIST) | |

Normality TestGoodness-of-fit tests for checking the normality of the distribution. We use artificial dataset in this tutorial, we have generated the dataset from 3 distributions : uniform, normal and log-normal. |
Normality Test |
Dataset | |

MANOVAOne Way Manova -- Multivariate Analysis of Variance : unlike classical ANOVA, there is more than one dependent variables. Comparing the results with ANOVA on each dependent variable. |
One Way MANOVA |
Manova Dataset | |

Friedman's TestFriedman's Two-Way Analysis of Variance by Ranks Comparing the performances of lecturers according to their use of slides. |
Friedman's ANOVA by Ranks |
Lecturer performances | |

Partial CorrelationComputing the correlation between two variables by controlling the effect of other variables. |
Partial Correlation |
WAIS test | |

Semi-partial CorrelationComputing the explanation of a dependent variable by an independent variable, by controlling the effect of other variables on this last one. |
Semi-partial Correlation |
cars |

Ricco Rakotomalala.