readsdpa: Reading and writing semidefinite programs for SDPA format...

In Rcsdp: R interface to the CSDP semidefinite programming library

Description

Functions to read and write semidefinite program data and solutions in SDPA format.

Usage

   readsdpa(file="",verbose=FALSE)
   writesdpa(C,A,b,K,file="")
   readsdpa.sol(K,C,m,file="")
   writesdpa.sol(X,Z,y,K,file="")

Arguments

file	The name of the file to read from or write to.
C	Block structured cost matrix
A	List of block structured constraint matrices
b	RHS vector
K	Cone specification, as used in csdp
X	Block structured primal optimal solution matrix
Z	Block strucutured dual optimal solution matrix
y	Dual optimal solution vector
verbose	Printout information as problem is read. Passed to CSDP's readsdpa function. Default FALSE
m	Number of constraints in problem.

Details

Block structured matrices must be specified as described in csdp. Files read must be in SDPA format (see http://infohost.nmt.edu/~sdplib/FORMAT). However, these functions don't support comments or grouping characters (e.g. braces, parentheses) in the block sizes specification.

Value

Function readsdpa returns a list with elements C,A,b,K. Function readsdpa.sol returns a listh with elements X,Z,y. All returned matrices are lists of objects of class simple_triplet_sym_matrix.

Author(s)

Hector Corrada Bravo

References

http://infohost.nmt.edu/~sdplib/FORMAT

See Also

csdp

Examples

#  TO DO

Example output

Rcsdp documentation built on May 2, 2019, 6:08 p.m.