5 数组和矩阵

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• arrays: 数组
• array indexing: 数组索引
• index arrays: 索引数组
• The array() function: array()函数
• The outer product of two arrays: 两个数组的外积
• Generalized transpose of an array: 数组广义转置
• Matrix facilities: 矩阵工具
• Forming partitioned matrices: 分块矩阵
• The concatenation function c() with arrays: 数组串连函数c()
• Frequency tables from factors: 因子分布表

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