小编Dop*_*ima的帖子

#use readtable to create data frames of following unzipped files below
x.train <- read.table("UCI HAR Dataset/train/X_train.txt")
subject.train <- read.table("UCI HAR Dataset/train/subject_train.txt")

y.train <- read.table("UCI HAR Dataset/train/y_train.txt")
x.test <- read.table("UCI HAR Dataset/test/X_test.txt")
subject.test <- read.table("UCI HAR Dataset/test/subject_test.txt")

y.test <- read.table("UCI HAR Dataset/test/y_test.txt")
features <- read.table("UCI HAR Dataset/features.txt")
activity.labels <- read.table("UCI HAR Dataset/activity_labels.txt")   





colnames(x.test) <- features[,2]
dataset_test <- cbind(subject.test,y.test,x.test)
colnames(dataset_test)[1] <- "subject"
colnames(dataset_test)[2] <- "activity"

test <- select(features, V2)

dataset_test <- select(dataset_test,subject,activity)

[1] Error: Can't bind data because some arguments have the …