Matrix data are written to a specified output file.
Usage
mat.write(mat, file.name, ij = FALSE, sym = FALSE, sparse=FALSE, formatted=TRUE)
Arguments
mat
matrix which should be written
file.name
file name
ij
logical, if TRUE the format in the file will be: iquad jquad value, otherwise each row of the file represents one row in the matrix
sym
logical, if TRUE the matrix is symmetric, only important if ij = TRUE
sparse
logical, if TRUE the matrix is written in sparse format (e.g. only non-zero values are written to the file), only important if ij = TRUE
formatted
logical, if TRUE a blank line is inserted after all entries of one row, only important if ij = TRUE
Details
In general there are two ways the output file can be written. First the matrix can be written to the file as write.table does and second the file can be written with the form: iquad jquad value, this means the value at position [i,j]. If the latter by ij = TRUE is selected, three more options can be chosen. If sym = TRUE the output file just contains the upper triangle and the diagonal of the matrix. If spase = TRUE only non-zero values are written. If formatted = TRUE a blank line seperates the entries of different rows.
providing 
.