Displaying 4 results from an estimated 4 matches for "nhat".
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hat
2007 Jun 06
3
Using odesolve to produce non-negative solutions
...d)*(beta*S*I/N)
ihat <- scaled_transmission - (death*I) - (recover*I)
}
if (ihat+I<0) {
ihat_old <- ihat
ihat <- -1*I
scaled_recovery <- (ihat/ihat_old)*(recover*I)
rhat <- scaled_recovery +(birth*(vax)) - (death*R)
}
if (rhat+R<0) {
rhat <- -1*R
}
nhat <- shat + ihat + rhat
if (nhat+N<0) {
nhat <- -1*N
}
## return derivatives
list(c(shat,ihat,rhat,nhat),c(0))
}
2009 Apr 26
1
constrained optimization
Is there any R package addressing problems of constrained optimization ?
I have the following "apparently" simple problem:
Given a set V with fixed cardinality: nv
Given a set S whose cardinality is a parameter: nHat
Let the cardinality of the intersection S.and.V be: nHatv
The problem consists of maximizing nHatv/nv subject to a penalty if nHat > nHatv
It is allowed and even desirable to make set S contain set V
Thank you so much
tutti i telefonini TIM!
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2010 Mar 22
1
calling external .EXE file in R macOSX
...t means
that inside the command file you should define
# file names with prefix = file.base
# bootstrap - If true, procedure is being called inside a bootstrap
routine, and intermediate files
# are deleted at each loop step, except the command file
#Outputs: list, containing
# Nhat.grp, Nhat.ind, mu, nL, Es, LnL, AIC, status
# Note - status is an integer:
# 1=OK, 2=warnings, 3=errors, 4=file errors, 5=some other problem
(e.g., program crash)
run.cds<-function(cmd.file.name) {
#Purpose: runs the MCDS.exe engine and waits for it to finish
# *Note* that mcds.exe needs to...
2011 Jul 21
2
tripwire alternative
...ing.
Last time I checked with "yum search tripwire", there is no hit.
IIRC, it used to be packed by default on older Redhat distros.
Any suggestion for an alternative of tripwire for my CentOS 5.6?
Cheers,
--
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