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.TH readmps 1 "MAY 1998" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
readmps - reads a file in MPS format
.SH CALLING SEQUENCE
.nf
[m,n,nza,irobj,namec,nameb,namran,nambnd,name,stavar,rwstat,hdrwcd,lnkrw,hdclcd,lnkcl,rwnmbs,clpnts,acoeff,rhs,ranges,ubounds,lbounds] =readmps ('file-name',maxm,maxn,maxnza,big,dlobnd,dupbnd);
.fi
.SH PARAMETERS
.TP 10
file-name
: character string (Name of file 'file-name.mps')
.TP 10
maxn
: integer number (Maximum number of constraints).
maxn
: integer number (Maximum number of variables).
.TP 10
maxnza
: integer number (Maximum number of nonzeros entries in the LP constraint matrix).
.TP 10
big
: large real number
.TP 10
dlobnd
: real nymber (Default lower bound).
.TP 10
dupbnd
: real number (Default upper bound).
.TP 10
m
: integer number (Actual number of constraints+1).
.TP
n
: integer number (Actual number of variables).
.TP 10
nza
: integer number (Actual number of nonzeros entries in the LP constraint matrix).
.TP 10
irobj
: integer (Index of the objective row).
.TP 10
namec
: character string (Name of the objective).
.TP 10
nameb
: character string (Name of the right hand side).
.TP 10
namran
: character string (Name of the ranges section).
.TP 10
nambnd
: character string (Name of the bounds section).
.TP 10
name
: character string (Name of the LP problem).
stavar
: integer vector ( variable status see hopdm.sci).
.TP 10
rwstat
: integer vector ( see hopdm.sci - rdmps1.f)
.TP 10
hdrwcd
: real vector (Header to the linked list of rows with the same codes).
.TP 10
lnkrw
: integer vector (Linked list of rows with the same codes).
.TP 10
hdclcd
: integer vector (Header to the linked list of columns with the same codes).
.TP 10
lnkcl
: integer vector (Linked list of columns with the same codes).
.TP 10C
rwnmbs
: integer vector (Row numbers of nonzeros in columns of matrix A.)
.TP 10
clpnts
: integer vector (Pointers to the beginning of columns of matrix A).
.TP 10
acoeff
: real vector (Array of nonzero elements for each column).
.TP 10
rhs
:real vector ( Right hand side of the linear program).
.TP 10
ranges
: real vector of constraint ranges.
.TP 10
ubounds
: full column vector of upper bounds
.TP 10
lbounds
: full column vector of lower bounds
.SH DESCRIPTION
\fV[m,n,nza,irobj,namec.nameb,namran,nambnd,name,stavar,rwstat,hdrwcd,lnkrw,hdclcd,rwnmbs,clpnts,acoeff,rhs,ranges,ubounds,lbounds] = readmps ('file-name',maxm,maxn,maxnza,big,dlobnd,dupbnd)\fR.
Utility function: reads file 'file-name.mps' in mps format. It is an
interface with the program \fVrdmps1.f\fR of hopdm (J. Gondzio).
For a description of the variables, see the file rdmps1.f.
.SH EXAMPLE
.nf
//File : test.mps (uncomment)
//NAME TESTPROB
//ROWS
// N COST
// L LIM1
// G LIM2
// E MYEQN
//COLUMNS
// XONE COST 1 LIM1 1
// XONE LIM2 1
// YTWO COST 4 LIM1 1
// YTWO MYEQN -1
// ZTHREE COST 9 LIM2 1
// ZTHREE MYEQN 1
//RHS
// RHS1 LIM1 5 LIM2 10
// RHS1 MYEQN 7
//BOUNDS
// UP BND1 XONE 4
// LO BND1 YTWO -1
// UP BND1 YTWO 1
//ENDATA
//// objective:
// min XONE + 4 YTWO + 9 ZTHREE
//// constraints:
// LIM1: XONE + YTWO < = 5
// LIM2: XONE + ZTHREE > = 10
// MYEQN: - YTWO + ZTHREE = 7
//// Bounds
// 0 < = XONE < = 4
// -1 < = YTWO < = 1
//// End
maxm = 5;
maxn = 4;
maxnza = 9;
big = 10^30;
dlobnd = 0;
dupbnd = 10^30;
//
//[m,n,nza,irobj,namec,nameb,namran,nambnd,name,stavar,rwstat,hdrwcd,...
//lnkrw,hdclcd,lnkcl,rwnmbs,clpnts,acoeff,rhs,ranges,ubounds,lbounds] = ...
//readmps ('test',maxm,maxn,maxnza,big,dlobnd,dupbnd);
.fi
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