Regions & Chunks #

Introduction #

At its core, Phase is all about providing an easy to use container for storing large amounts of data. One of the most important parts of that task is providing an easy way for the user to extract a peice of data from the collection - for example, selecting only the first three elements from a vector, or isolating the green channel of an RGB image.

Although it seems very simple, this topic can get quite confusing. Because Phase aims to make scientific computing easier to work with, we’re devoting a whole section to this one operation of taking an NArray (or, more specifically, a MultiIndexable) apart.

To begin with, we’ll review the Array from Crystal’s standard library. If you’re comfortable with slicing Arrays in Crystal already, skip to MultiIndexable Slicing.