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I have few minutes left, please help write R code to create a matrix (3 rows...

I have few minutes left, please help

write R code to create a matrix (3 rows and 4 columns) that looks like this:

10 -10 10 -10
10 -10 10 -10
10 -10 10 -10
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Answer #1

syntax for creating a matrix in R is :

matrix(data, nrow, ncol, byrow, dimnames)

data is the input vector which becomes the data elements of the matrix.

nrow is the number of rows to be created.

ncol is the number of columns to be created.

byrow is a logical clue. If TRUE then the input vector elements are arranged by row.

dimname is the names assigned to the rows and columns.

Program:

rownames = c('', '', '')
colnames = c('', '', '', '')
M <- matrix(c(10, 10, 10, -10, -10, -10, 10, 10, 10, -10, -10, -10), nrow = 3, ncol= 4, byrow = FALSE, dimnames = list(rownames, colnames))
print(M)
. Execute > Share main.r STDIN 1 # Elements are arranged sequentially by row. 2 rownames = c(,, ) 3 colnames = c,. 4 MI.li Result $Rscript main.r 10 -10 10 -10 10 -10 10 -10 10 -10 10 -10

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