02_Statistics
This directory contains 7 workflows.
01_Simple_Example_with_Statistics
Flow splitts numeric from nominal columns, does some filtering and then joins the data back again. Additionally, the data is visualized in a Box Plot and […]
02_Example_for_Statistical_Tests
This workflow shows how to use the nodes for the Wilcoxon Mann Whitney test, the Wilcoxon signed-rank test and the Kruskal-Wallis test.
03_Calculating_the_Cronbach_Alpha
This workflow shows how to calculate the Cronbach Alpha measure and Standardized Cronbach Alpha measure for the Iris dataset.
04_Performing_a_Linear_Discriminant_Analysis
This workflow shows how the linear discriminant analysis node can be used for dimension reduction. The result is visualized with a scatter plot.
05_Independent_groups_t-test
Tests if there is a statistically significant difference between test scores of high school students at private schools and public schools.
06_Kolmogorov-Smirnov_Matrix
Executes the Kolmogorov-Smirnov test on all pairs of columns in the HSB2 dataset. It creates a matrix view from the computed p-values with alpha = 0.05.
07_Comparing_Distributions
This workflow checks if all the samples for groups in the input data themselves are normally distributed and, subsequently, checks if the samples originate […]