Reading BAM files

To get started, you'll read mapped reads from a BAM file into R. These files store information about the alignment between read sequences and the reference genome in a compressed binary format. Loading data from BAM files is a common task when analyzing genomic data.

In this exercise, you'll first load all reads from a bam file. This is straightforward but can require a lot of memory, so in the second part, you'll learn how to load only the reads from a region of interest.