SEM

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The Department of methodology and Evaluation Research at Universität Jena has made available a set of free online video courses on data analysis.They cover topics that are particularly relevant to psychology and social science researchers, including SEM, causal inference, regression, R, and psychometrics.Some courses are in German, but many are in English, and the language of the course is clearly marked.Some require that you register, but registration is free.Their website allows you to filter just for English Language courses.Below are some courses that I found particularly appealing. Related Resources R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: visualization ( ggplot2 , Boxplots , maps , animation ), programming ( RStudio , Sweave , LaTeX , SQL , Eclipse , git , hadoop , Web Scraping ) statistics ( regression , PCA , time series , ecdf , trading ) and more... <p style="text-align:right;color:#A8A8A8"></p>

Graphviz

Graphviz is a free graph visualisation program that produces structural diagrams. While its primary purpose is visualization of algorithms and flow charts, it can also be used to draw path diagrams and structural equation models. The syntax resembles somewhat that of R's sem package: it uses the same idea of -> signs to represent the arrows. The variables of the model are nodes in Graphviz slang, and the relations are edges .

How To Use Graphviz for SEM Models and Path Diagrams

La production de certaines applications exige de pouvoir générer des graphes au sens recherche opérationelle du terme. C'est-à-dire des graphiques représentant des noeuds liés entre eux via des arcs orientés ou non. Or la représentation graphique des graphes est un problème algorithmique ardu. La conception d'un programme offrant une telle fonctionnalité est une tâche de longue haleine qui requiert de fortes compétences en mathématiques et algorithmique. Ainsi, il est utile de recourir à un programme externe à qui on délègue la génération des graphes. L'application