Java: Data Science Made Easy

Handling CSV data

A common technique for separating information is to use commas or similar separators. Knowing how to work with CSV data allows us to utilize this type of data in our analysis efforts. When we deal with CSV data there are several issues including escaped data and embedded commas.

We will examine a few basic techniques for processing comma-separated data. Due to the row-column structure of CSV data, these techniques will read data from a file and place the data in a two-dimensional array. First, we will use a combination of the Scanner class to read in tokens and the String class split method to separate the data and store it in the array. Next, we will explore using the third-party library, OpenCSV, which offers a more efficient ...