- Download the dataset if it does not already exist in the working directory.
- Load the activity and feature info.
- Loads both the training and test datasets, keeping only those columns which reflect a mean or standard deviation.
- Loads the activity and subject data for each dataset, and merges those columns with the dataset.
- Merges both datasets, the training and test.
- Converts the
activity
andsubject
columns into factors. - Creates a tidy dataset that consists of the average of each variable for each activity and each subject.
- Write that tidy dataset in the file
data_mean.txt
.
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