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# Webinar-Aufzeichnungen

## Latest webinars on Sensory and Medical data analysis:

### WEBINAR #7: Deploying an R procedure in Excel using XLSTAT-R

This article lists the most recent XLSTAT elearning Statistics webinar recordings along with the data and the presentations files.
The data used are the same for all sessions.

## WEBINAR #1 : Describing Data - Learn Data Science with XLSTAT

Describing Data - 1 hour

Descriptive statistics allow to summarize information contained in datasets using simple numbers such as the mean or the standard deviation; and charts such as box plots and scatter plots.

• Variables, individuals...

• Describing one qualitative variable: frequencies, mode, pie charts...

• Describing one quantitative variable: mean, standard deviation, box plot...

• Describing the link between two qualitative variables: cross tabulation.

• Describing the link between one quantitative variable & one qualitative variable

• Describing the link between two quantitative variables: scatter plot

Produced by: Addinsoft Directed by: Jean-Paul Maalouf PRESENTATION MATERIAL

## WEBINAR #2 : Exploring and clustering data - Learn Data Science with XLSTAT

Exploring and clustering data - 1 hour

Exploratory statistics allow to summarize information contained in datasets of various volumes using dimension-reduction and segmentation features.

• Reminder: Variables, Individuals, Descriptive Statistics

• Exploring & Clustering data

• Exploring data: Principal Component Analysis (PCA)

• Clustering data: Agglomerative Hierarchical Clustering (AHC)

Produced by: Addinsoft Directed by: Jean-Paul Maalouf PRESENTATION MATERIAL

## WEBINAR #3 : Statistical testing - Learn Data Science with XLSTAT

Statistical testing - 1 hour

Statistical tests allow to take decisions on rejecting or not predefined hypotheses.

• Data description & exploration: reminder

• Statistical tests: principles, steps, comparing two means

• Parametric vs non parametric tests

• Statistical tests: Comparison vs Association

• Testing the association between 2 qualitative variables

• Testing the association between 2 quantitative variables

• Appendices: interpreting p > alpha; independant vs paired samples

Produced by: Addinsoft Directed by: Jean-Paul Maalouf PRESENTATION MATERIAL

## WEBINAR #4 : Statistical modeling - Learn Data Science with XLSTAT

Statistical modeling - 1 hour

Statistical modeling allows to investigate how variables change according to other variables, and to make predictions.

• Reminder: Statistical Testing

• Statistical modeling: an intuitive introduction

• Simple Linear Regression

• Multiple Linear regression

Produced by: Addinsoft Directed by: Jean-Paul Maalouf PRESENTATION MATERIAL

## WEBINAR #5 : Analysis of Variance - ANOVA - Learn Data Science with XLSTAT

Analysis of Variance - ANOVA - 1 hour

ANOVA is a popular statistical modeling feature. It is used to explain dependent quantitative variables using one or several qualitative explanatory variables called factors.

• Reminder: Statistical Testing and Statistical Modeling

• What is Analysis of Variance or ANOVA?

• Multiple Pairwise comparisons

• The Kruskal-Wallis test: a non-parametric equivalent for the 1-way ANOVA

• 2-way ANOVA & interaction effect

Produced by: Addinsoft Directed by: Jean-Paul Maalouf PRESENTATION MATERIAL

## WEBINAR #6 : Supervised Machine Learning and Prediction - Learn Data Science with XLSTAT

Supervised Machine Learning and Prediction - 1 hour

This webinar will introduce you to the Supervised Machine Learning which is used to optimize predictive algorithms. Applications in Excel using the XLSTAT statistical software.

• Reminder: Statistical Modeling

• What is Machine Learning?

• The process of Supervised Machine Learning

• Cross Validation of a linear regression model

• Regression Trees

• Random Forests: introduction & regression example

• Appendix: Random Forests - building a tree

Produit par : Addinsoft Présenté par : Jean-Paul Maalouf PRESENTATION MATERIAL

## WEBINAR #7: Deploying an R procedure in Excel using XLSTAT-R

Deploying an R procedure in Excel using XLSTAT-R - 1 hour - English.

XLSTAT-R is a revolutionary interface designed to use and write R procedures within XLSTAT dialog boxes in Microsoft Excel®. It has two principal audiences:

• Coders able to write XML and R code to generate XLSTAT dialog boxes calling the R engine from Excel;

• Statisticians who take advantage of the XLSTAT-R dialog boxes to call R procedures from Excel without needing to code.

Produit par : Addinsoft Présenté par : Jean-Paul Maalouf Presentation PDF (1 February 2018) XML source code (1 February 2018)

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