getting_and_cleaning_data

获取和清理数据课程项目 该文件包含有关如何运行 sctipt run_analysis.R 以获取所需数据集的说明。 1. unzip input data (https://d396qusza40orc.cloudfront.net/getdata/projectfiles/UCI HAR Dataset.zip) and rename the folder as rawData 2. run_analysis.R script must be in the same folder with "rawData" Folder 3. run code in run_analysis.R using command source("run_analysis.R") 4. output data will be generated in the folder "tidyDa