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Which multivariate data analysis method to choose?

Quickly relaunch a pre-configured analysis on modified data

Discriminant Analysis in Excel tutorial

Spectral analysis in Excel tutorial

STATIS analysis in Excel tutorial

Correspondence Analysis (CA) from a contingency table

Create a products/assessors table

WHY CREATE A PRODUCTS/ASSESSORS TABLE? Sensory data can be presented in two ways: Vertical form: This is a table with as many rows as samples. One column is dedicated to the product identifier, another to the assessor identifier, and the remaining columns correspond to descriptors such as sweetness, acidity, etc. Horizontal form: This is a table with as many rows as products. The number of columns...

Permutational MANOVA or adonis

Permutational multivariate analysis of variance (PERMANOVA) Permutational multivariate analysis of variance (PERMANOVA),also called Non Parametric MANOVA (NPMANOVA), is a model used in ecology and biology to explain communities with environmental variables. Its goal is similar to Multivariate Analysis of Variance (MANOVA) but as opposed to MANOVA, PERMANOVA is based on permutations of distance matrices....

Data management

Why do we need to manage data? When information is coming from different sources it may be necessary to organize the data before starting an analysis. XLSTAT offers several options for managing data. Deduping It is sometimes necessary to dedupe a table. Some observations might be mistakenly duplicated (or repeated) when they come from different sources, or because of input errors. Grouping Grouping...

Semantic differential charts

What is a semantic differential chart The semantic differential function is a visualization method that has been developed by the psychologist Charles E. Osgood in order to plot the differences between individuals' connotations for a given word. When applying the method, Osgood asked survey participants to describe a word on a series of scales ranging from one extreme to the other (for example favorable/unfavorable)....