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Comprehensive guide for Data Exploration in R

This guide addresses the following questions, with sample source code:

  • How to load data file(s)?
  • How to convert a variable to different data type?
  • How to transpose a table?
  • How to sort Data?
  • How to create plots (Histogram, Scatter, Box Plot)?
  • How to generate frequency tables?
  • How to do sampling of Data set?
  • How to remove duplicate values of a variable?
  • How to group variables to calculate count, average, sum?
  • How to recognize and treat missing values and outliers?
  • How to merge / join data set effectively?

Source for picture:making maps with R

Read the whole article here. Other R resources can be found here.

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