Package index

S4 Classes

S4 class definitions for dbMatrix objects

dbMatrix()

S4 virtual class for dbMatrix

dbDenseMatrix-class dbDenseMatrix

S4 Class for dbDenseMatrix

dbSparseMatrix-class dbSparseMatrix

S4 Class for dbSparseMatrix

Coercion

Methods for coercing dbMatrix objects to other types

coerce-dbMatrix-dgCMatrix coerce-dbDenseMatrix-dgCMatrix coerce-dbSparseMatrix-dgCMatrix

Coerce dbMatrix to dgCMatrix

coerce-dbMatrix-matrix coerce-dbDenseMatrix-matrix coerce-dbSparseMatrix-matrix

Coerce dbMatrix to matrix

coerce-matrix-dbMatrix coerce-dgCMatrix-dbMatrix

Coerce matrix to dbMatrix

Constructor

Function for creating dbMatrix objects

as.dbMatrix()

Convert Matrix::Matrix to dbMatrix

as.matrix(<dbMatrix>)

Convert dbMatrix to in-memory matrix

dbMatrix_from_tbl()

dbMatrix_from_tbl

`[`(<dbMatrix>,<dbIndex>,<missing>,<ANY>) `[`(<dbMatrix>,<missing>,<dbIndex>,<ANY>) `[`(<dbMatrix>,<dbIndex>,<dbIndex>,<ANY>) `[`(<dbMatrix>,<dbMatrix>,<missing>,<ANY>) `[<-`(<dbMatrix>,<dbMatrix>,<missing>,<ANY>) `[`(<dbMatrix>,<dbDenseMatrix>,<missing>,<ANY>) `[`(<dbMatrix>,<missing>,<dbDenseMatrix>,<ANY>) `[`(<dbMatrix>,<dbDenseMatrix>,<dbDenseMatrix>,<ANY>)

Extract or replace values in database-backed matrices

to_named_ijx_tbl()

Convert dbMatrix to named ijx table

Matrix Summary Operations

Methods to compute summary statistics for dbMatrix objects

Summary(<dbMatrix>)

Summary Methods for dbMatrix Objects

mean(<dbDenseMatrix>) mean(<dbSparseMatrix>)

Arithmetic Mean for dbMatrix objects

rowMeans(<dbMatrix>) colMeans(<dbMatrix>)

Row (column) means for dbMatrix objects

colSds(<dbDenseMatrix>) colSds(<dbSparseMatrix>) rowSds(<dbDenseMatrix>) rowSds(<dbSparseMatrix>)

Row (column) standard deviations for dbMatrix objects

rowSums(<dbDenseMatrix>) rowSums(<dbSparseMatrix>) colSums(<dbDenseMatrix>) colSums(<dbSparseMatrix>)

Row (column) sums for dbMatrix objects

rowVars(<dbDenseMatrix>) rowVars(<dbSparseMatrix>) colVars(<dbDenseMatrix>) colVars(<dbSparseMatrix>)

Row (column) variances for dbMatrix objects

Matrix Transformations

Methods for transforming dbMatrix objects

Math(<dbMatrix>)

Math Operations for dbMatrix Objects

is.na(<dbMatrix>)

Element-wise is.na for dbMatrix

`%in%`(<dbDenseMatrix>,<ANY>) `%in%`(<ANY>,<dbDenseMatrix>) `%in%`(<dbSparseMatrix>,<ANY>)

Value Matching

t(<dbMatrix>)

Matrix Transpose

compute(<dbMatrix>)

Force computation of a dbMatrix

db_svd()

Perform Streaming SVD on a dbMatrix

Matrix Properties

Methods to retrieve basic properties of dbMatrix objects

dim(<dbMatrix>)

Dimensions of an Object

head(<dbMatrix>) tail(<dbMatrix>)

Return the First or Last Parts of an Object

length(<dbMatrix>)

Length of a dbMatrix Object

rownames.dbMatrix() `rownames<-`(<dbMatrix>) colnames.dbMatrix() `colnames<-`(<dbMatrix>) dimnames(<dbMatrix>) `dimnames<-`(<dbMatrix>,<list>)

Retrieve and Set Row (Column) Dimension Names of dbMatrix Objects

names(<dbDenseMatrix>)

The names of a dbMatrix Object

nrow.dbMatrix() ncol.dbMatrix()

The Number of Rows/Columns of a dbMatrix Object

dbData objects

Convenience methods for dbData objects

Arith(<dbMatrix>,<ANY>) Arith(<ANY>,<dbMatrix>) Arith(<dbMatrix>,<dbMatrix>) Ops(<dbMatrix>,<ANY>) Ops(<ANY>,<dbMatrix>) Ops(<dbMatrix>,<dbMatrix>) dbLoad(<DBIConnection>) writeMM(<dbMatrix>)

Arith dbMatrix, e2

Package Options

Global options for the dbMatrix package

dbMatrix_options dbMatrix-options

dbMatrix Package Global Options