search for: sigma2hat

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2013 Mar 31
0
Standard error of normalmixEM fit?
....99024,(1-0.99024)),fast=FALSE,maxit=10000,epsilon = 1e-16,maxrestarts=1000) normalmix$loglik normalmix$lambda se<-boot.se(normalmix,B=1000) se$lambda.se se$mu.se se$sigma.se final results: lambdahat = 0.990238663 mu1hat= -0.00115 mu2hat= 0.040176949 sigma1hat= 0.012220305 sigma2hat= 0.003247102 My problem now is - and thats why I feel uncomfortable about relying on the values - that the output of boot.se(normalmix) varies quite strong. So without changing the code and rerun it (with the same normalmix, so normalmix is not rerun again) I get different estimates of the stand...
2013 Apr 04
0
Std. error of normalmixEM with boot.se
....99024,(1-0.99024)),fast=FALSE,maxit=10000,epsilon = 1e-16,maxrestarts=1000) normalmix$loglik normalmix$lambda se<-boot.se(normalmix,B=1000) se$lambda.se se$mu.se se$sigma.se final results: lambdahat = 0.990238663 mu1hat= -0.00115 mu2hat= 0.040176949 sigma1hat= 0.012220305 sigma2hat= 0.003247102 My problem now is - and thats why I feel uncomfortable about relying on the values - that the output of boot.se(normalmix) varies quite strong. So without changing the code and rerun it (with the same normalmix, so normalmix is not rerun again) I get different estimates of the stand...
2013 Apr 04
0
Std. error normalmixEM using boot.se
...mix<-normalmixEM(dat,k=2,lambda=c(0.99024,(1-0.99024)),fast=FALSE,maxit=10000,epsilon=1e-16,maxrestarts=1000) normalmix$loglik normalmix$lambda se<-boot.se(normalmix,B=1000) se$lambda.se se$mu.se se$sigma.se final results: labmdahat=0.99024 mu1hat=-0.00115 mu2hat=0.040177 sigma1hat=0.01222 sigma2hat=0.00325 My problem is - and thats why I feel uncomfortable about relying on the values- that the ouput of boot.se(normalmix) varies quite strong. So without chanigng the code an drerun it (with the same normalmix, so normalmix is not rerun again) I get different esimates of the standard errors. I...