sdpRead

Read a SDPA Dense or Sparse file, or SeDuMi MAT file into Matlab

Syntax

prob = sdpRead(filename)

prob = sdpRead(filename,filetype)

prob = sdpRead(filename,filetype,print)

Description

Read a SDP into Matlab.

prob = sdpRead(filename) reads the file specified by filename and creates an optiprob problem. If you supply only a filename the file must be on Matlab's path in order for this function to find it. Otherwise if you supply a full path + filename, it may reside anywhere on your PC. You must supply the file extension using this method.

prob = sdpRead(filename,filetype) allows the user to enter just the filename (without an extension), and manually specify the file type (e.g. 'SDPA').

prob = sdpRead(filename,filetype,print) will also print headings found plus any errors encountered during reading with print = 1. Note not all file types support text output, in which case it will be ignored.

Available File Types

File Type	Extension	Notes
'SDPA-S'	.dat-s	Sparse Format
'SDPA'	.dat	Dense Format
'SeDuMi'	.mat

Examples

A number of small examples are supplied with the toolbox in the folder OPTI/Test Problems/ which can be used for testing.

Reading a SDPA file

If a file extension is supplied, this dictates the file type.

>> prob = sdpRead('arch0.dat-s')

Reading a SeDuMi file

You may also supply the file type manually.

>> prob = sdpRead('sdp_truss1','sedumi')