Displaying 5 results from an estimated 5 matches for "drbn".
Did you mean:
drbd
2008 Oct 15
1
stablefit can fit the parameters of a truncated normal distribution?
I'm using stableFit from the package fBasics to estimate the parameters of a
truncated normal distribution (I'm interested in the parameters of the
underlying normal distribution). It is correct to generalize this truncated
normal distribution as a stable distribution ?
Thanks
David
--
View this message in context:
2008 Oct 30
1
Is possible, on biological grounds, suggest to fitdistr (MASS library) that the estimated parameters must be between two values?
Sorry if it is a silly question, I haven't found documentation on this and I
don't know if it is possible.
library(MASS) ## for fitdistr
library(msm) ## for dtnorm
#prepare truncated normal distribution
dtnorm0 <- function(x, mean, sd , log = FALSE) {
dtnorm(x, mean, sd, 105, 135, log)
}
set.seed(1)
#Generate normal distribution with the TRUE population mean (day 106 of the
2008 Oct 20
1
distributions and glm
Hello,
I have seen that some papers do this:
1.) Group data by year (e.g. 35 years)
2.) Estimate the mean of the key variable through the distribution that fits
better (some years is a normal distribution , others is a more skewed, gamma
distribution, etc.)
3.) With these estimated means of each year do a GLM.
I'd like to know if it is possible (to use these means in a GLM) or is a
wrong
2010 Jul 26
1
After writing data in MMF using SEXP structure, can i reference in R?
...local polynomial
regression model?.
Email:[66]assaedi76 at yahoo.com
???br> ???br> Thanks alot
[[alternative HTML version deleted]]
------------------------------
Message: 7
Date: Sat, 24 Jul 2010 04:14:44 -0700 (PDT)
From: "David R." <[67]drbn at yahoo.com>
To: [68]r-help at r-project.org
Subject: [R] Weights in mixed models
Message-ID: <[69]217686.73973.qm at web113215.mail.gq1.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
Hello everyone,
I wonder if sample size?can be used as weight? in...
2010 Jul 24
2
Pesos en modelos mixtos
Hola a todos,
Me gustaria saber si en un modelo mixto se puede usar el tamaño de muestra como
peso o es incorrecto hacerlo.
Por ejemplo en el comando 'lmer' del paquete lme4 hay una opcion 'weights'
(igual que en 'lm' de stats). Si tengo datos de una medida (por ejemplo el
peso) de 10 especies de aves (rango, de 50 a 3000 datos segun la especie) ¿puedo
usar esta n en