Displaying 2 results from an estimated 2 matches for "consigma".
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consiga
2009 Sep 25
0
Error with Mixdist in R
...following problem. Can you suggest me where I am going wrong?
> super <-read.table("Workbook1.txt",,sep ="\t")
> plot(super)
> fitmixdata <-as.mixdata(super)
> plot(fitmixdata)
> plotfit1<-mix(super,mixparam(c(-75,-67,-38),10),"norm",mixconstr(consigma="NONE"))
Error in nlm(mixlike, lmixdat = mixdat, lmixpar = fitpar, ldist = dist, :
missing value in parameter
I get this error.
Awaiting a reply soon.
Thanking you,
Regards,
Suchit Shah
BOSTON
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-...
2011 Feb 23
0
Over-constrained? gamma mixtures using R: mix{mixdist}
...ixtures.
This is the code I used:
PP2Pars<-data.frame(c(0.23,0.77), c(9.174,29.54), c(9.983,12.369));
names(PP2Pars)<-c("pi", "mu", "sigma")
mixk2<-mix(NotLinkedPP3, PP2Pars,
dist="gamma",constr=list(conpi="NONE",conmu = "MFX", consigma = "SFX",
fixpi = NULL, fixmu = c(TRUE,TRUE), fixsigma = c(TRUE,TRUE), cov =
NULL, size = NULL))
If I allow any one of the 4 constrained parameters to become
unconstrained then the model runs and gives sensible results but if I
constrain all four parameters then I get the following e...