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Getting and Cleaning Data using R

Creating a R script called run_analysis.R that does the following:

  1. Merges the training and the test sets to create one data set.
  2. Extracts only the measurements on the mean and standard deviation for each measurement.
  3. Uses descriptive activity names to name the activities in the data set
  4. Appropriately labels the data set with descriptive activity names.
  5. Creates a second, independent tidy dataset with the average of each variable for each activity and each subject.

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Importing an untidy data in R and tidy it

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