Titlebook: Data Wrangling with R; Bradley C. Boehmke, Ph.D. Book 2016 Springer International Publishing Switzerland 2016 R.data wrangling.data struct

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Dealing with Regular Expressionsally, regex patterns consist of a combination of alphanumeric characters as well as special characters. The pattern can also be as simple as a single character or it can be more complex and include several characters.

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Dealing with Factorsthe most important uses of factors is in statistical modeling; since categorical variables enter into statistical models such as . and . differently than continuous variables, storing data as factors insures that the modeling functions will treat such data correctly.

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The Role of Data Wrangling In spite of advances in technologies for working with data, analysts still spend an inordinate amount of time obtaining data, diagnosing data quality issues and pre-processing data into a usable form. Research has illustrated that this portion of the data analysis process is the most tedious and ti

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