R是用于統計計算,數據分析和圖形的開源免費編程語言。 R被企業和學術界內越來越多的管理人員和數據分析人員所使用。 R有各種各樣的數據挖掘軟件包。
引言和序言
- 使 R 更友好,R 和可用的 GUI
- 雷工作室
- 相關軟體和文件
- R 和統計資訊
- 以交互方式使用 R
- 介紹性會議
- 獲取有關功能和特性的説明
- R 命令、區分大小寫等。
- 調用和更正以前的命令
- 從檔案執行命令或將輸出轉移到檔中
- 數據持久性和刪除物件
簡單的操作;數位和向量
- 向量和賦值
- 向量算術
- 生成常規序列
- 邏輯向量
- 缺失值
- 字元向量
- 索引向量;選擇和修改數據集的子集
- 其他類型的物件
對象、它們的模式和屬性
- 內在屬性:模式和長度
- 更改物件的長度
- 獲取和設置屬性
- 物件的類
陣列和矩陣
- 陣 列
- 陣列索引。陣列的子節
- 索引矩陣
- array() 函數
- 兩個陣列的外積
- 陣列的廣義轉置
- Matrix 設施
- Matrix 乘法
- 線性方程和反演
- 特徵值和特徵向量
- 奇異值分解和行列式
- 最小二乘擬合和 QR 分解
- 形成分區矩陣 cbind() 和 rbind()
- 包含陣列的串聯函數 ()
- 因數的頻率表
清單和數據框
- 清單
- 構建和修改清單
- 連接清單
- 數據幀
- 製作數據框
- attach() 和 detach()
- 使用數據框
- 附加任意清單
- 管理搜尋路徑
數據操作
- 選擇、子集化觀測值和變數
- 篩選、分組
- 重新編碼、轉換
- 聚合,組合數據集
- 字元操作、stringr 包
讀取數據
- Txt 檔
- CSV 檔
- XLS、XLSX 檔
- SPSS, SAS, Stata,...和其他格式數據
- 將數據匯出為 txt、csv 和其他格式
- Access使用 SQL 語言從資料庫獲取數據
概率分佈
- R 作為一組統計表
- 檢查一組數據的分佈
- 單樣本和雙樣本檢測
分組、循環和條件執行
- 分組表達式
- 控制語句
- 條件執行:if 語句
- 重複執行:for 迴圈、repeat 和 while
編寫自己的函數
- 簡單示例
- 定義新的二元運算符
- 命名參數和預設值
- “...”論點
- 函數內的賦值
- 更高級的範例
- 模組設計中的效率係數
- 刪除列印陣列中的所有名稱
- 遞歸數值積分
- 範圍
- 自定義環境
- 類、泛型函數和面向物件
圖形過程
- 高級繪圖命令
- plot() 函數
- 顯示多變數數據
- 顯示圖形
- 高級繪圖函數的參數
- 基本可視化圖表
- 使用 lattice 和 ggplot 包的多元關係
- 使用圖形參數
- 圖形參數清單
時間序列 Forecasting
- 季節性調整
- 移動平均線
- 指數平滑
- 外推法
- 線性預測
- 趨勢估計
- 平穩性和 ARIMA 建模
計量經濟學方法(隨意方法)
- 回歸分析
- 多元線性回歸
- 多元非線性回歸
- 回歸驗證
- Forecasting 來自回歸
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