Create run_analysis.R

# you can execute code by passing parameters like below in console window, you need to create functions before by executing run_analysis.R prgram.
merged_data_set <- merge_data_set("UCI HAR Dataset")
extracted_mean_std_data_set <- extract_mean_std(merged_data_set, "UCI HAR Dataset")
melt_data_and_create_tidy_set(extracted_mean_std_data_set, "./tidyset.txt")