Displaying 4 results from an estimated 4 matches for "gtol".
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2008 Aug 22
1
Help on competing risk package cmprsk with time dependent covariate
...ing to do so.
First, I have run the following script (R2.7.1 under XPpro) according to previous advices:
library(cmprsk)
attach(LAMrelapse)
fit1<- crr(rel.t, rel.s, treatment, treatment, function(uft)
cbind(ifelse(uft<=1,1,0),ifelse(uft>1,1,0)), failcode=1,
cencode=0, na.action=na.omit, gtol-06, maxiter)
fit1
where:
rel.t = time to event (in years)
rel.s = status , =1 if disease relapse, =2 if death from non disease
related cause (toxicity of previous chemotherapy), =0 if alive &
not in relapse
treatment =
binary covariate (value: 0 or 1) representing the treatment to test
(differ...
2011 Mar 15
1
Problem with nls.lm function of minpack.lm package.
...minpack.lm package.
For the first fit, the parameter estimates keep changing even after 1000 iterations (Th)
and
I have a following error message for fit of hydraulic conductivity (k);
Reason for termination: The cosine of the angle between `fvec' and any column of the
Jacobian is at most `gtol' in absolute value.
I dont know what I can do for solve my problem
Yesterday I asked to Katharine Mullen
Here are her aswer
Yann P?riard
?tudiant ? la ma?trise en sols et environnement
D?partement des sols et de g?nie agroalimentaire
Centre de Recherche en Horticulture
Pavillon Envirotr...
2008 Aug 20
0
cmprsk and a time dependent covariate in the model
...do so.
First, I have run the following script (R2.7.1 under XPpro) according to previous advices:
library(cmprsk)
attach(LAMrelapse)
fit1<- crr(rel.t, rel.s, treatment, treatment, function(uft)
cbind(ifelse(uft<=1,1,0),ifelse(uft>1,1,0)), failcode=1,
cencode=0, na.action=na.omit, gtol-06, maxiter)
fit1
where:
rel.t = time to event (in years)
rel.s = status , =1 if disease relapse, =2 if death from non disease
related cause (toxicity of previous chemotherapy), =0 if alive &
not in relapse
treatment = binary covariate (value: 0 or 1) representing the treatment to test (...
2008 Aug 22
0
Re : Help on competing risk package cmprsk with time dependent covariate
...run the following script (R2.7.1 under XPpro) according to previous advices:
>
> library(cmprsk)
> attach(LAMrelapse)
> fit1<- crr(rel.t, rel.s, treatment, treatment, function(uft)
> cbind(ifelse(uft<=1,1,0),ifelse(uft>1,1,0)), failcode=1,
> cencode=0, na.action=na.omit, gtol-06, maxiter)
> fit1
>
> where:
> rel.t = time to event (in years)
> rel.s = status , =1 if disease relapse, =2 if death from non disease
> related cause (toxicity of previous chemotherapy), =0 if alive &
> not in relapse
> treatment =
> binary covariate (value: 0 or...