Displaying 11 results from an estimated 11 matches for "lpsolveapi".
2011 Sep 16
0
lpSolveAPI optimizer treating some of the constraints as soft constraint
Hello Folks,
I am trying to do linear optimization using linear constraints on the
decision variables. The problem is it is treating some of the constraints as
soft constraints(violating couple of constraints condition), instead of
throwing infeasible solution. Is there an option in lpsolveapi package where
I can say don't give me solution if any of the constraints is violated.
Your help would be very much appreciated.
Thanks
Ashish Kumar
Estee Advisors Pvt. Ltd.
Email: ashish.kumar@esteeadvisors.com
Cell: +91-9654072144
Direct: +91-124-4637-713
[[alternative...
2009 Jul 21
1
strange bug? with R CMD check
...OS X. When the package is named safeBinaryRegression I get the
following warning from R CMD check:
* checking whether the name space can be loaded with stated
dependencies ... WARNING
Error in dyn.load(file, DLLpath = DLLpath, ...) :
function 'make_lp' not provided by package 'lpSolveAPI'
Calls: loadNamespace -> library.dynam -> dyn.load
Execution halted
A namespace must be able to be loaded with just the base namespace
loaded:
otherwise if the namespace gets loaded by a saved object, the session
will
be unable to start.
Probably some imports need to be declared in...
2015 Apr 24
2
Diferencias entre la version de 32 y 64 bits
Buenos días,
He hecho un desarrollo en mi máquina (de 64 bits) y funciona
correctamente. Se trata de un problema de programación lineal (usando
lpSolve y lpSolveAPI). El problema viene al ejecutar un caso concreto
que en la máquina del usuario (de 32 bits) nos da que no hay solución
factible para ese problema, pero en mi máquina de 64 sí que nos
devuelve una solución. ¿Hay alguna forma (limitar decimales, por
ejemplo) de solucionar esto?
He probado con las ver...
2016 Jun 07
2
problems compiling packages | 3.3.0 | Linux
On Tue, Jun 7, 2016 at 11:46 AM, Tom Callaway <tcallawa at redhat.com> wrote:
> On 06/06/2016 05:04 PM, Brian Fallik wrote:
> > Apologies if this email is a top post. I'm not sure how to reply to a
> > thread if I'm not subscribed.
> >
> > We recently encountered the same issue that Evan reported on 6/4 and I
> can
> > confirm that updated to
2015 Apr 01
2
Diferencias entree la ejecucion por consola y por linea de comandos
Buenas tardes,
Estoy teniendo problemas al ejecutar un script de R por linea de
comandos. Se trata de un problema de programación lineal con las
librerias lpSolve y lpSolveAPI en el que leo los datos desde un CSV.
El problema con dos decimales funciona sin problemas pero si
aumentamos a 4 decimales en algunos datos de entrada nos da solución
si ejecutamos desde la consola pero no da solución factible si lo
lanzamos por linea de comandos (R CMD BATCH --slave --no-timing
&...
2009 Mar 27
1
asking advice for Integer Programming packages
Dear everyone,
I don't know much about Integer Programming but am afraid I am facing
a problem that can only be solved via Integer Programming. I was
wondering if those of you who have experience with it could recommend
an R package.
I found the following R packages:
Rglpk
glpk
lpSolve
lpSolveAPI
Are there any others?
Are some of them easier to use than others for a beginner?
Any advice would be greatly appreciated!
--
Dimitri Liakhovitski
MarketTools, Inc.
Dimitri.Liakhovitski at markettools.com
2016 Jun 08
0
problems compiling packages | 3.3.0 | Linux
Hi Tom,
I'm seeing another similar build failure with the recent 3.3.0-5 and I'm a
bit stumped about what's going on.
On a fresh VM, after installing 3.3.0-5 and then running:
install.packages(c("lpSolveAPI), method="curl", repos="
https://cran.rstudio.com")
the build fails with:
gcc: /builddir/build/BUILD/R-3.3.0/zlib-1.2.8/target/usr/lib64/libz.a: No
such file or directory
gcc: /builddir/build/BUILD/R-3.3.0/bzip2-1.0.6/target/usr/lib64/libbz2.a:
No such file or directory
gc...
2010 Jun 08
0
Rsymphony
...Rsymphony package:
a) is there a way to use 'warm starts' ?
i.e. if i successively call Rsymphony_solve_LP()
with only one constraints change, does it perform the optimization
from the simplex-origin or does it uses the previously found solution
[i.e. as is common usage, see for instance lpsolveAPI]
b) to what extend are sparse matrix supported ?
i.e. if a constraint matrix is set as
cbind(1,x,diag(dim(x)[1]),-diag(dim(x)[1])) is it understood as sparse ?
Best,
2012 Aug 08
0
Revolutions Blog: July roundup
...vs "pop" on Twitter results in a
linguistic map of the US and the world: http://bit.ly/QfCiax
A guide for preparing public data for analysis with R: http://bit.ly/QfCiaz
A "statistics hacker" describes the tools (R included) he uses for
data science: http://bit.ly/QfCkiU
The lpSolveAPI package has powerful mixed-integer programming
capabilities, as this cargo optimization example demonstrates:
http://bit.ly/QfCiay
R is used by more than 500 statisticians at Google, who use Google's
"Flume" package to model terabytes of data with R:
http://bit.ly/QfCiaC
I used the...
2010 Aug 22
2
CRAN (and crantastic) updates this week
...GEOmap (1.5-9), GEVcdn (1.0.2), GillespieSSA (0.5-4), gllm
(0.33), glmperm (1.0-3), gRapHD (0.1.7), HFWutils (0.9.4.2010.08.20),
hts (1.3), HWEintrinsic (1.1.1), igraph (0.5.4-1), intervals (0.13.3),
ipw (1.0-6), laeken (0.1.3), LDheatmap (0.2-9), lme4 (0.999375-35),
lmPerm (1.1-2), lordif (0.1-6), lpSolveAPI (5.5.2.0), magma (0.2.1-3),
MCMCglmm (2.06), mondate (0.9.08.15), mondate (0.9.08.19.02), mratios
(1.3.13), nacopula (0.4-3), nleqslv (1.7), nlt (2.1-1), NMF (0.5),
pROC (1.3.1), qpcR (1.3-1), qpcR (1.3-0), qtl (1.18-7), qualityTools
(1.01), R.utils (1.5.0), r4ss (1.10), rAverage (0.3-3), rbounds (...
2009 Aug 24
6
CRAN (and crantastic) updates this week
CRAN (and crantastic) updates this week
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