Articles by Avi Blinder

Regular Expressions Exercises – Part 1

October 30, 2016 | Avi Blinder

A common task performed during data preparation or data analysis is the manipulation of strings. Regular expressions are meant to assist in such and similar tasks. A regular expression is a pattern that describes a set of strings. Regular expressions can range from simple patterns (such as finding a single ... [Read more...]

Creating Sample Datasets – Exercises

October 7, 2016 | Avi Blinder

Creating sample data is a common task performed in many different scenarios. R has several base functions that make the sampling process quite easy and fast. Below is an explanation of the main functions used in the current set of exercices: 1. set.seed() – Although R executes a random mechanism of ... [Read more...]

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