dannyzis/datacleaningproject

Getting and Cleaning Data Class Project

How the script works :

1. The Script first merges test and train data then
2. Gets the required Colums and Column Headers :

All cols with "-mean" in their suffix

and

All cols with "-std()" in their suffix

then 3)

Selects from the merged data set cols that measure

std and mean, and adds headers to cols

Adds test activity labels

Adds train activity labels

Adds SUBJECTS Column

Groups by ACTIVITIES and SUBJECTS Summarizing means of variables

Running : uses the dplyr library : library(dplyr) View()