Displaying 5 results from an estimated 5 matches for "simc".
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kimc
2003 Sep 24
1
Problem using C random generator called from R
...turned to R, they are not in [0,1]. A simple C program using
drand48() gives values in [0,1] so I suppose there is a problem (type
definition ?) between C and R. Here are R and C function and an example.
# R function
simulC <- function(n)
{
dyn.load("test.so")
simR <- runif(n)
simC <- .C("test",
as.integer(n),
res=double(n))$res
out <- list(simR=simR,simC=simC)
out
}
// C function
void test(int *n,double *res)
{
int i;
for(i=0;i<*n;i++) {res[i] = drand48();}
}
# Result of x <- simulC(5)
> x
$simR
[1] 0.398567942 0.866053345...
2007 Dec 14
1
Quadratic Programming
...9;ll start by stating the problem:
I want to minimize
h(d,delta)=0.5d^T B d +nabla(f(x))^T d +rho*delta^2
With respect to d\in R^n and delta \in R. I obviously have constraints (depending on both d and delta).
Solve.QP does give me a good result for d but I cannot obtain anything for delta. Simce dim(Dmat)=n and sol<-rep(0,n) it isn't particularly surprising.
To set a diagonal matrix
(B 0 )
Amat= (0 rho )
Is a crapy idea. Does anyone have an idea?
Yours,
Serge
"Beatus qui prodest quibus potest" - (Lycklig är den som hjälper andra)
Serge de Gosson de Varennes...
2010 Jul 20
2
This could be a multiple supplier problem
I have finally encountered this problem in such a way that everything went awry.
Running Simcity 4 Rush Hour with the following command line:
env WINEPREFIX="/home/john/.wine" wine C:\\PROG\~FBU\\Maxis\\SIMC\~ZMW\\Apps\\SimCity\ 4.exe -intro:off
Which brought up the game, just fine.
I opened my largest city, and very soon after that, while I was adding something to the layout,...
2004 Dec 17
2
Doubts about chi-square distribution
Dear list,
For educational purposes I have been working with the script below.
I have a observation:
line 31
#CScal[i] = (amo^2) # IT IS WRONG, I KNOW, BUT IT MAKE R TO CRASHES!
I'm thinking this is a possible bug in the R!
And I have a couple of doubts:
1) line 51
#curve(dchisq(x, n-1), add = T, col = 'red'
I think that it is correct, but the function no
2004 Oct 14
0
VSS and Samba
Did you ever find a solution for using a linux working directory with
VSS?
Thanks,
Charles