R: Class "matrix.csr"

matrix.csr-class {SparseM} | R Documentation

## Class "matrix.csr"

### Description

A new class for sparse matrices stored in compressed sparse row format

### Objects from the Class

Objects can be created by calls of the form `new("matrix.csr", ...)`. and coerced from various other formats. Coercion of integer scalars and vectors into identity matrices and diagonal matrices respectively is accomplished by `as(x,"matrix.diag.csr")` which generates an object that has all the rights and responsibilties of the matrix.csr class. The default matrix.csr object is a scalar (1 by 1) matrix with element 0.

### Slots

`ra`:

  Object of class `numeric`, a real array of nnz elements containing the non-zero elements of A, stored in row order. Thus, if i<j, all elements of row i precede elements from row j. The order of elements within the rows is immaterial.

`ja`:

  Object of class `integer`, an integer array of nnz elements containing the column indices of the elements stored in ‘ra’.

`ia`:

  Object of class `integer`, an integer array of n+1 elements containing pointers to the beginning of each row in the arrays ‘ra’ and ‘ja’. Thus ‘ia[i]’ indicates the position in the arrays ‘ra’ and ‘ja’ where the ith row begins. The last, (n+1)st, element of ‘ia’ indicates where the n+1 row would start, if it existed.

`dimension`:

  Object of class `integer`, dimension of the matrix

### Methods

%*%

  `signature(x = "matrix.csr", y = "matrix.csr")`: ...

%*%

  `signature(x = "matrix.csr", y = "matrix")`: ...

%*%

  `signature(x = "matrix.csr", y = "numeric")`: ...

%*%

  `signature(x = "matrix", y = "matrix.csr")`: ...

%*%

  `signature(x = "numeric", y = "matrix.csr")`: ...

as.matrix.csc

  `signature(x = "matrix.csr")`: ...

as.matrix.ssc

  `signature(x = "matrix.csr")`: ...

as.matrix.ssr

  `signature(x = "matrix.csr")`: ...

as.matrix.coo

  `signature(x = "matrix.csr")`: ...

as.matrix

  `signature(x = "matrix.csr")`: ...

chol

  `signature(x = "matrix.csr")`: ...

diag

  `signature(x = "matrix.csr")`: ...

diag<-

  `signature(x = "matrix.csr")`: ...

dim

  `signature(x = "matrix.csr")`: ...

image

  `signature(x = "matrix.csr")`: ...

solve

  `signature(a = "matrix.csr")`: ...

t

  `signature(x = "matrix.csr")`: ...

diff

  `signature(x = "matrix.csr")`: ...

### See Also

`matrix.csc-class`

[Package SparseM version 1.77 Index]