Saving datasets to CSV and JSON

Once you've done the work of slicing, dicing, cleaning, and aggregating your datasets, you might want to save them. Incanter by itself doesn't have a good way to do this. However, with the help of some Clojure libraries, it's not difficult at all.

Getting ready

We'll need to include a number of dependencies in our project.clj file:

(defproject inc-dsets "0.1.0"
  :dependencies [[org.clojure/clojure "1.6.0"]
                 [incanter "1.5.5"]
                 [org.clojure/data.csv "0.1.2"]
                 [org.clojure/data.json "0.2.5"]])

We'll also need to include these libraries in our script or REPL:

(require '[incanter.core :as i]
         '[incanter.io :as i-io]
         '[clojure.data.csv :as csv]
         '[clojure.data.json :as json]
         '[clojure.java.io :as io])

Also, we'll use the same data that we introduced in the Selecting columns with $ recipe.

How to do it…

This process is really as simple as getting the data and saving it. We'll pull out the...