Displaying 6 results from an estimated 6 matches for "nlmodel".
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nlsmodel
2009 Apr 23
1
Failing to print mer object in an RData image
...] "mer"
attr(,"package")
[1] "lme4"
But when I want to print it or look at its structure:
print(model.01)
Error in slot(value, what) :
no slot of name "Xst" for this object of class "mer"
> str(model.01)
Error in FUN(c("env", "nlmodel", "frame", "call", "flist", "X", "Xst", :
no slot of name "Xst" for this object of class "mer"
Any idea what to do?
> R.version
platform i486-pc-linux-gnu
arch i486
os linux-gnu
system...
2012 Dec 14
1
Define a custom-built loss function and combine it with nls()
...unction above and combine it with a
non-linear regression nls() in R?
Example for a data frame with the measured variables x and y:
x<-1:10
y<-c(0.3,0.7,0.9,1.3,2.0,2.4,3.3,3.8,5.0,5.8)
d<-data.frame(x,y)
Non-linear regression with inbuilt loss-function (sum of squared residuals):
nlmodel<-nls(y~a*x^b,data=d,start=list(a=1,b=0.1),trace=T)
Many thanks!!!
Christiana
--
Christiana Anagnostou
*****************************************
Department of Evolutionary Ecology and Genetics
Zoological Institute
Christian-Albrechts-University of Kiel
Am Botanischen Garten 9
24118 Kiel
Germa...
2007 Mar 13
0
segfault with correlation structures in nlme
...)), as.integer(unlist(Dims)),
as.integer(attr(nlmeSt$reStruct, "settings"))[-(1:3)], as.double(cF),
as.double(vW), as.integer(unlist(cD)), settings =
as.double(pnlsSettings), additional = double(NReal * (pLen + 1)),
as.integer(!is.null(correlation)), as.integer(!is.null(weights)),
nlModel, NAOK = TRUE)
6: nlme.formula(model = follicles ~ A + B * sin(2 * pi * w * Time) +
C * cos(2 * pi * w * Time), data = Ovary, fixed = A + B + C + w ~ 1,
random = pdDiag(A + B + w ~ 1), start = c(fixef(fm50var.lme), 1),
corr = corGaus(form = ~Time))
7: eval(expr, envir, enclos)
8: eval(cal...
2013 Oct 18
0
pamer.fnc y la nueva versión de R
...#############################################################
The old lmerMod structure was:
##############################
###########################################
> str(mod)
Formal class 'mer' [package "lme4"] with 34 slots
..@ env :<environment: 0xbfeda80>
..@ nlmodel : language I(x)
..@ frame :'data.frame': 20 obs. of 4 variables:
.. ..$ RT : num [1:20] 490 514 476 502 520 ...
.. ..$ Condicion1: Factor w/ 2 levels "A","B": 1 1 2 2 1 1 2 2 1 1 ...
.. ..$ Condicion2: Factor w/ 2 levels "X","Y": 1 2 1 2...
2013 Oct 18
2
pamer.fnc y la nueva versión de R
Javier,
Creo que aquí aplica la ley de Linus que dice: "Dado un número
suficientemente elevado de ojos, todos los errores se convierten en
obvios". La persona que revisa y encuentra un error no necesariamente
tiene que ser la misma que la que lo escribe. Una motivación muy importante
al compartir un código es la de recibir los beneficios del control de
calidad por parte de tus pares.
2013 Dec 02
1
pamer.fnc y la nueva versión de R
...##########################
> The old lmerMod structure was:
> ##############################
> ###########################################
> > str(mod)
> Formal class 'mer' [package "lme4"] with 34 slots
> ..@ env :<environment: 0xbfeda80>
> ..@ nlmodel : language I(x)
> ..@ frame :'data.frame': 20 obs. of 4 variables:
> .. ..$ RT : num [1:20] 490 514 476 502 520 ...
> .. ..$ Condicion1: Factor w/ 2 levels "A","B": 1 1 2 2 1 1 2 2 1 1 ...
> .. ..$ Condicion2: Factor w/ 2 levels "X",&qu...