VIZBI 2014 tutorial – ‘Data hierarchies and ‘omics data: How to use treemaps and related tools for data visualization’

In the different field of ‘omics technologies or metaanalyses of biocommunities large sets of abundance or change data on taxonomic or gene expression level have to be explored. Due to the complexity of these data new visualizaton tools have been developed linking experimental data with already available knowledge from gene functional classificatons, taxonomy or metabolic and regulatory networks.

In our tutorial participants will learn to visualize and explore hierarchically or quasi-hierarchically organized data. Metabolic modules, similarly regulated gene clusters, gene functional classes will be extracted and visualized in Voronoi- and swarm-based treemaps, path treemaps or stream graph views, respectively. For this purpose theĀ Paver package will be used.

Participants will learn:
1. The basics of using the Paver application.
2. How to integrate and visualize metabolic data, gene functional classification data and other hierarchically structured data sets in a space saving and aesthetically appealing way.
3. How different visual channels (cell size, color gradients, color saturation, containment and others) support data visualization and how this is implemented in Paver.
4. How brilliant interactive as well as static artwork can be made from expression data tables that helps you with an immediate and intuitive interpretation of your data.

We will give you the essential elements to construct and visualize powerful integrative functional genomics analyses.

The tutorial includes both lectures and hands-on exercises, so bring a laptop with a spreadsheet application and a text editor such as notepad++ or similar. We will provide you with a two month Paver licence, and give you some insights into other available software.

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