获取数据_课程作业 有关文件和变量说明,请参阅 CodeBook.md 读取原始数据 vars <- read.table("data/features.txt", stringsAsFactors = FALSE)[ , 2] df.train <- read.table("data/train/X_train.txt", col.names = vars) # 'Train'-part of the dataframe df.test <- read.table("data/test/X_test.txt", col.names = vars) # 'Test'-part of the dataframe subj.train <- unlist(read.table("data/train/subject_train.txt")) # 'V
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