===========
- This tidy dataset contains the averaged information about mean and standard deviation on all features. It is organized in a way that readers can easily pick up the data for each participant on each activity.
-
as described in the assignment requirements, variables named with "std" or "mean" in them are picked.
-
then the data are summarised by both the participant number and activity identifier to be understandable by human.
- a r script to reproduce the tidy data from original data set
- a code book to clarify the variable names
- readme.md file
- subject identifier(named "subject")
- activity identifier(named "activity")
- sets of measurements of mean and standard deviation on different features (note the variable names are modified to be more clear)
- For more details, please refer to the script comments.
- Personally I think the instructions are a little vague. So there is a chance that I misunderstand the assignment requirements.