Hi Goyani,
You are setting "PRE" to the return value of "if" which is one of TRUE
(1), FALSE(0) or NULL. Because GAY is always missing in your example,
"PRE" is always set to 1. Then you always want to pass 1 in the sample
list, and that will not assign anything to PRE. By correcting the "if"
Buenos días. He utilizado fit$cv.fitted en gbm para obtener las
predicciones OOF (por CV), para regresión, y funciona perfectamente. Sin
embargo, cuando lo aplico con clasificación multiclase me sale una matriz
con tantas columnas como clases tiene la variable objetivo. Primero pensé
que serían
Hi I am developing a package that reives on some large datasets stored in
aws s3.
I have made the bucket and all objects in the bucket public, but still
cannot sync them to my local directory without providing my AWS key pair.
without these credentials I get a "bucket does not exist" message.
Hi Baki,
This should be a different issue. It looks like there is no problem in the
R terminal. Does the crash happen every time when you run the code in
RStudio? If so, this should be a bug in RStudio and you need to consult
RStudio's mailing list as R and RStudio are maintained by different
Hi Goyani,
In its present form, the function stalls because you haven't defined
pmat before trying to pass it to the function. gmat and wmat suffered
the same fate. Even if I define these matrices as I think you have,
"solve" fails because at least one is singular. First, put the
function in order
Yes I am using factoextra.
>When you choose the argument "contrib" the colors are based on the
>strength of the relationship overall (the length of the arrow), not
>the contribution of any individual direction.
Then, the question is why the legend is not in 0 to 1 scale?
Regards,
Mahmood
The way to start is looking at the help for that function, which includes:
... Arguments to be passed to the function fviz()
so you may have more low-level control through those arguments. If
fviz() itself doesn't do what you want, it also allows you to pass
additional arguments to its
Hi,
I am going to assume that you are using factoextra, and are working
the example from the function in question, but it would be useful for
you to explicitly state that when you're asking a question about a
particular package and function.
When you choose the argument "contrib" the colors are
I created custom function according to my requirement which is given below:
*selection.index<- function(ID, phen_mat, gen_mat, weight_mat, GAY){ ID =
toString(ID) p<- as.matrix(phen_mat) g<- as.matrix(gen_mat) w<-
as.matrix(weight_mat) bmat<- solve(phen_mat) %*% gen_mat %*%
This is likely because Hessian is being approximated.
Numerical approximation to Hessian will overstep the bounds because
the routines that are called don't respect the bounds (they likely
don't have the bounds available).
Writing numerical approximations that respect bounds and other
Does optim go out of bounds when you specify hessian=FALSE?
hessian=TRUE causes some out-of-bounds evaluations of f.
> optim(c(X=1,Y=1),
> function(XY){print(unname(XY));(XY[["X"]]+1)^4+(XY[["Y"]]-2)^4}, method=
> "L-BFGS-B", lower=c(0.001,0.001), upper=c(1.5,1.5), hessian=TRUE)
[1] 1 1
[1]
Hi
I use the following function to plot the variables with their contributions.
fviz_famd_var(res.famd, "quanti.var", col.var = "contrib",
gradient.cols = c("#00AFBB", "#E7B800", "#FC4E07"),
repel = TRUE)
The result can be seen at
Can you put together your example as a single runnable scipt?
If so, I'll try some other tools to see what is going on. There
have been rumours of some glitches in the L-BFGS-B R implementation,
but so far I've not been able to acquire any that I can reproduce.
John Nash (maintainer of optimx
Dear all,
I am using optim() to estimate unknown parameters by minimizing the
residual sums of squares. I created a function with the model. The model is
working fine. The optim function is producing negative parameter values, even
I have introduced upper and lower bounds (given in code).
Hi
I use fviz_famd_ind() from factoextra and I would like to know
1) How can I decrease the font size?
2) How to increase max.overlaps?
ind <- get_famd_ind(res.famd)
fviz_famd_ind(res.famd, col.ind = "cos2",
gradient.cols = c("#00AFBB", "#E7B800", "#FC4E07"),
repel
Hi Jiefei
I run the code below in RGui
> nn2 <- nnet(TQ~.,data = train, size=c(15,15), linout=T, MaxNWts =4000,
> maxit=2000)
But I got the following output:
# weights: 435initial value 55650.887782 final value 55650.887782 converged
Program early converged. Program didn't any calculations.
Hi Baki,
Perhaps out of memory? Would you be able to run your code through the R
terminal? It probably can give us more information to debug the issue.
Best,
Jiefei
On Mon, Mar 22, 2021 at 12:23 AM Baki UNAL via R-help
wrote:
> Hi,
> I tried to train a neural network with following code:
>
Hi,
I tried to train a neural network with following code:
nn2 <- nnet(TQ~.,data = train, size=c(15,15), linout=T, MaxNWts =4000,
maxit=2000)
When I executed the code R studio crashed with following error:
"R Session Aborted
R encountered a fatal error.
The session was terminated.
Start new
Hi,
I have minutes worked by day (with some more information)
which when using
library(tidyverse)
library(lubridate)
run through
CONSMINUTES %>%
select(datum, dauer) %>%
arrange(desc(datum))
look somewhat like
# A tibble: 142
... or a George Box (I believe) said: The crucial "Declaration of
Independence."
Bert Gunter
"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Sat, Mar 20, 2021 at 4:25 PM
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