Book Image

R Bioinformatics Cookbook

By : Dan MacLean
Book Image

R Bioinformatics Cookbook

By: Dan MacLean

Overview of this book

Handling biological data effectively requires an in-depth knowledge of machine learning techniques and computational skills, along with an understanding of how to use tools such as edgeR and DESeq. With the R Bioinformatics Cookbook, you’ll explore all this and more, tackling common and not-so-common challenges in the bioinformatics domain using real-world examples. This book will use a recipe-based approach to show you how to perform practical research and analysis in computational biology with R. You will learn how to effectively analyze your data with the latest tools in Bioconductor, ggplot, and tidyverse. The book will guide you through the essential tools in Bioconductor to help you understand and carry out protocols in RNAseq, phylogenetics, genomics, and sequence analysis. As you progress, you will get up to speed with how machine learning techniques can be used in the bioinformatics domain. You will gradually develop key computational skills such as creating reusable workflows in R Markdown and packages for code reuse. By the end of this book, you’ll have gained a solid understanding of the most important and widely used techniques in bioinformatic analysis and the tools you need to work with real biological data.
Table of Contents (13 chapters)

Using nested dataframes

The dataframe is at the core of the tidy way of working and we tend to think of it as a spreadsheet-like rectangular data container with only a single value in each cell. In fact, dataframes can be nested—that is, they can hold other dataframes in specific, single cells. This is achieved internally by replacing a dataframe's vector column with a list column. Each cell is instead a member of a list, so any sort of object can be held within the conceptual single cell of the outer dataframe. In this recipe, we'll look at ways of making a nested dataframe and different ways of working with it.

Getting ready

We'll need the tidyr, dplyr, purrr, and magrittr libraries. We'll also...