# From Authors

<figure><img src="/files/h4cSHvzgMBz8ML7I3trX" alt=""><figcaption><p>Cover design and preparation - Bogna Idkowiak.</p></figcaption></figure>

**Welcome!**

Welcome to the first version of *Omics Data Visualization in R and Python*! This GitBook is designed to be your go-to resource for mastering data visualization, statistical computations, and best practices in R and Python, with a focus on **lipidomics and metabolomics datasets**.

Our goal is simple: to bring together the most effective **code snippets, visualizations, and computational approaches**—all presented in a clear and accessible way. R and Python have become essential tools for **omics data analysis**, offering powerful, free-of-charge solutions for generating high-quality visual insights and conducting complex statistical analyses.

We believe that **learning these tools should be accessible to everyone**. That’s why we created this GitBook—a comprehensive collection of everything a young lipidomics or metabolomics researcher needs to **analyze bulk omics data** efficiently.

Let’s dive in and explore the world of **omics data visualization** together! 🚀

The authors

#### **Getting Started with R and Python**

**For Beginners:**

If you're just starting your journey with R or Python, we recommend following these steps:\
1️⃣ Before modifying the code for your own data, first **work through the examples in this GitBook** using the dataset we’ve provided.\
2️⃣ **Reproduce the visualizations on your computer** and ensure you understand each step of the code.\
3️⃣ Once you're comfortable with the process, **start adapting the code snippets to your own data**.

You can download the general dataset from **Introduction: Example Data Sets** (always start with dataset no. 1). If a different dataset is used in a specific chapter, we’ll always provide the source.

**For Those with Some Experience:**

If you already have a basic understanding of R and Python but want to test specific code snippets, you can download the example dataset from **Introduction: Example Data Sets** (dataset no. 1).

Happy coding! 🚀

**Spotted an Issue? Here’s How to Report It**

Dear GitBook reader, if you encounter any inconsistencies or errors in the R or Python code, please let us know at **<lipidomicsrpython@kuleuven.be>**. Please use the example **data set no. 1** (from Introduction: Example data sets) to present why the code does not work.

Is your favorite R or Python library missing? Let us know if you think it should be included! We will gladly update the repository so everyone can learn R and Python freely!

Last update of the GitBook: 20.03.2025

#### **Authors and Affiliations**

**Jakub Idkowiak**

* University of Pardubice, Faculty of Chemical Technology, Department of Analytical Chemistry, Czech Republic;&#x20;
* Laboratory of Lipid Metabolism and Cancer, KU Leuven and Leuven Cancer Institute (LKI), Belgium.<br>

**Jonas Dehairs**

* Laboratory of Lipid Metabolism and Cancer, KU Leuven and Leuven Cancer Institute (LKI), Belgium.<br>

**Jana Schwarzerová**&#x20;

* Brno University of Technology, Faculty of Electrical Engineering and Communication, Department of Biomedical Engineering, Czech Republic;&#x20;
* Molecular Systems Biology (MOSYS), Department of Functional and Evolutionary Ecology, Faculty of Life Sciences, University of Vienna, Austria;&#x20;
* Department of Molecular and Clinical Pathology and Medical Genetics, University Hospital Ostrava, Czech Republic.<br>

**Dominika Olešová**&#x20;

* Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Slovakia;&#x20;
* Institute of Neuroimmunology, Slovak Academy of Sciences, Slovakia.<br>

**Jacob X.M. Truong**&#x20;

* South Australian Health and Medical Research Institute (SAHMRI), Australia;&#x20;
* South Australian immunoGENomics Cancer Institute (SAiGENCI) & Freemasons Centre for Male Health and Well-Being, The University of Adelaide Medical School, Australia.<br>

**Aleš Kvasnička**&#x20;

* Laboratory for Inherited Metabolic Disorders, Department of Clinical Biochemistry, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University, Czech Republic;
* Department of Medical Biochemistry, Oslo University Hospital, Norway.<br>

**Marios Eftychiou**&#x20;

* Laboratory for Integrative Cancer Genomics, VIB-KU Leuven Center for Cancer Biology, Belgium;
* VIB Center for AI & Computational Biology, Belgium;&#x20;
* Department of Oncology, KU Leuven, Belgium;
* Laboratory of Multi-Omic Integrative Bioinformatics, Department of Human Genetics, KU Leuven, Belgium.<br>

**Ruben Cools**&#x20;

* Laboratory for Integrative Cancer Genomics, VIB-KU Leuven Center for Cancer Biology, Belgium;
* VIB Center for AI & Computational Biology, Belgium;&#x20;
* Department of Oncology, KU Leuven, Belgium.<br>

**Xander Spotbeen**&#x20;

* Laboratory of Lipid Metabolism and Cancer, KU Leuven and Leuven Cancer Institute (LKI), Belgium.<br>

**Robert Jirásko**&#x20;

* University of Pardubice, Faculty of Chemical Technology, Department of Analytical Chemistry, Czech Republic.<br>

**Vullnet Veseli**&#x20;

* University of Pardubice, Faculty of Chemical Technology, Department of Analytical Chemistry, Czech Republic.<br>

**Marco Giampà**&#x20;

* Laboratory of Applied Mass Spectrometry, Department of Cellular and Molecular Medicine, KU Leuven, Belgium;&#x20;
* Metabolomics Core Facility, VIB KU Leuven Center for Cancer Biology, Belgium.<br>

**Vincent de Laat**&#x20;

* Laboratory of Lipid Metabolism and Cancer, KU Leuven and Leuven Cancer Institute (LKI), Belgium.<br>

**Lisa M. Butler**&#x20;

* South Australian Health and Medical Research Institute (SAHMRI), Australia;&#x20;
* South Australian immunoGENomics Cancer Institute (SAiGENCI) & Freemasons Centre for Male Health and Well-Being, The University of Adelaide Medical School, Australia.<br>

**Wolfram Weckwerth**&#x20;

* Molecular Systems Biology (MOSYS), Department of Functional and Evolutionary Ecology, Faculty of Life Sciences, University of Vienna, Austria;&#x20;
* Vienna Metabolomics Center (VIME), University of Vienna, Austria.<br>

**David Friedecký**&#x20;

* Laboratory for Inherited Metabolic Disorders, Department of Clinical Biochemistry, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University, Czech Republic.<br>

**Jonas Demeulemeester**&#x20;

* Laboratory for Integrative Cancer Genomics, VIB-KU Leuven Center for Cancer Biology, Belgium;
* VIB Center for AI & Computational Biology, Belgium;
* Department of Oncology, KU Leuven, Belgium.<br>

**Karel Hron**&#x20;

* Palacký University Olomouc, Faculty of Science, Department of Mathematical Analysis and Applications of Mathematics, Czech Republic.<br>

**Johannes V. Swinnen**&#x20;

* Laboratory of Lipid Metabolism and Cancer, KU Leuven and Leuven Cancer Institute (LKI), Belgium.<br>

**Project supervision:**

**Michal Holčapek**&#x20;

* University of Pardubice, Faculty of Chemical Technology, Department of Analytical Chemistry, Czech Republic.


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