Read Me

Raw data

• 'train/X_train.txt': Training set.

• 'train/y_train.txt': Training labels.

• 'test/X_test.txt': Test set.

• 'test/y_test.txt': Test labels.

Code Description

Loading dplyr Package

library(dplyr)

Reading Test data Set

test_main<-read.table("./test/X_test.txt",header = F,sep = "") test_labels<-read.table("./test/y_test.txt",header = F,sep = "") test_subjects<-read.table("./test/subject_test.txt",header = F,sep = "") test_main$label<- test_labels$V1 test_main$subject<- test_subjects$V1

Reading Training data Set

train_main<-read.table("./train/X_train.txt",header = F,sep = "") train_labels<-read.table("./train/y_train.txt",header = F,sep = "") train_subjects<-read.table("./train/subject_train.txt",header = F,sep = "") train_main$label<- train_labels$V1 train_main$subject<- train_subjects$V1

Merging Test and Training Data Set

FinalMerge<-merge(test_main,train_main,all=T)

Keeping only variables need for data Analysis

Part2_data<-select(FinalMerge,V1:V6) Part2_data$label<-FinalMerge$label Part2_data$subject<-FinalMerge$subject

Descriptive Label added to Label Variable

Part3_data<-Part2_data Part3_data$label<-factor(Part3_data$label,levels = c(1,2,3,4,5,6) , labels = c("WALKING","WALKING_UPSTAIRS", "WALKING_DOWNSTAIRS" ,"SITTING","STANDING","LAYING"))

Renaming Variable vs Default

Part4_data<-Part3_data Part4_data<-rename(Part4_data,tBodyAcc_mean_X = V1,tBodyAcc_mean_Y = V2, tBodyAcc_mean_Z = V3, tBodyAcc_std_X = V4, tBodyAcc_std_Y = V5,tBodyAcc_std_Z = V6)

Summarizing Data for each activity and subject

Part5_data<-Part4_data

activity<-group_by(Part5_data,label) summarydata1<-summarise(activity,tBodyAcc_mean_X = mean(tBodyAcc_mean_X), tBodyAcc_mean_Y = mean(tBodyAcc_mean_Y), tBodyAcc_mean_Z = mean(tBodyAcc_mean_Z), tBodyAcc_std_X = mean(tBodyAcc_std_X), tBodyAcc_std_Y = mean(tBodyAcc_std_Y), tBodyAcc_std_Z = mean(tBodyAcc_std_Z))

Subject_Type<-group_by(Part5_data,subject) summarydata2<-summarise(Subject_Type,tBodyAcc_mean_X = mean(tBodyAcc_mean_X), tBodyAcc_mean_Y = mean(tBodyAcc_mean_Y), tBodyAcc_mean_Z = mean(tBodyAcc_mean_Z), tBodyAcc_std_X = mean(tBodyAcc_std_X), tBodyAcc_std_Y = mean(tBodyAcc_std_Y), tBodyAcc_std_Z = mean(tBodyAcc_std_Z))

Final Merging of Summary Reports

FinalMergeSumm<-merge(summarydata1,summarydata2,all=T) head(FinalMergeSumm)

Write Text data report

write.table(FinalMergeSumm,file = "Final_Summary_Report.txt",sep=" ",row.names = F)