Data frame mode R
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gl: Generate Factor Levels - Rdrr.ioan integer giving the length of the result. labels. an optional vector of labels for the resulting factor levels. ordered. a logical indicating whether ...data.frame: Data Frames - Rdrr.iological: should character vectors be converted to factors? The 'factory-fresh' default has been TRUE previously but has been changed to FALSE for R 4.0.0. Only ...[PDF] 第3 章: 基本物件3: Basic Objects(vector), 矩陣(matrix), 陣列(array), 列表(Lists), 或資料框架(data frames) 等. ... R 的最基本物件是向量, “向量” 是指包含相同“模式” (mode) 的元素(element) 組成, 主要有 ... gl(2, 2, 5). [1] 1 1 2 2 1. Levels: 1 2. 3.4.4 文字向量操作paste(). 函式paste() ...Chapter 2 R basics | Introduction to Data Science - rafalabWhat are the column names used by the data frame for these five variables? 3. Use the accessor $ to extract the state abbreviations and assign them to the object ...Working with data in a data frame... a data frame. diabetes
延伸文章資訊
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