November 2017
Beginner to intermediate
204 pages
5h 23m
English
Content preview from Practical Data Wrangling
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Reading, Exploring, and Modifying Data - Part I
Even if you are new to programming, opening, modifying and saving files within programs should be a relatively familiar process. You have likely opened and edited a document with a word processor or entered data into an Excel spread sheet.
Like a computer program, a dataset can be represented using a text file with a specific syntactical structure. The text in a data file specifies both the information contained in the data and the structure in which that information is placed. In a sense, writing a program to process data files is a similar to the process of editing a document or a spreadsheet. First, the content of a file is opened, observed, and modified, and then the result is saved.
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