矩阵用下列哪个函数生成( )。
A: array( )
B: data.frame( )
C: list( )
D: matrix( )
A: array( )
B: data.frame( )
C: list( )
D: matrix( )
D
举一反三
内容
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data.frame()函数输出的是一个数据矩阵。
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单选题 () is a fixed-size, sequenced collection of elements of the same data type. A: An array B: A record C: A linked list D: A variable
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14 In triple sequence table of sparse matrix, each triple represents ( ). A: the row number,column number and data value of non-zero elements in the matrix B: the data value of non-zero elements in the matrix C: the row and column numbers of elements in the matrix D: the row number,column number and data value of elements in the matrix
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利用MATLAB生成随机矩阵是下列哪个函数( ) A: eyes(); B: zeros(); C: ones(); D: rand()
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矩阵的创建可以用哪些函数( ) A: matrix() B: dim() C: ind() D: cbind()