Dear R experts:
I have a list (a very long one) and I need to create successively txt
outputs (on diferent files ideally) for the data of each component of the
list.
How can I do this?
Thanks in advance!!
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Dear R experts,
I have a problem with a function I wrote. The fuction looks like this:
series<-function(x,s){
foo<-list();
ind3<-integer();
for (j in diff){
for (i in 1:(n-12)){
if
(!(x[i,j]==0)&!(x[i+1,j]==0)&!(x[i+2,j]==0)&!(x[i+3,j]==0)&!(x[i+4,j]==0)&!(x[i+5,j]==0)&!(x[i+6,j]==0)
&!(x[i+
Dear R-experts:
Does anybody knows how the CI of the "forecast" (forecasting package) are
calculated (at least in the ES and Arima cases)???
Thanks
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R-help@r-project.org mailing list
https://stat.ethz.ch
Dear R-experts,
I'm having some doubts concernig the scores function of the "outliers"
package. I donĀ“t understand the results when I select the p-value option on
a sample, ie, when I use scores(x,"(method)",1). The help on the function
says that the output are the p-values associatted to the samp
Dear R experts:
I've seen that it's possible to make a sort of "slideshow" with several
R-plots (each slide is activated by a click on the mouse). How can I put
this on a R-script???
Regards.
D.
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R-help
Hello experts!
Is there a way to send an internal variable from a function to the
workspace, besides the function output, of course
Thanks!!
D.
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R-help@r-project.org mailing list
https://stat.ethz.
Hello R experts!
I'm running a FOR loop in which at every step an arima model is generated.
The problem is some series produces numeric problems with optim. My question
is if there is a way of telling to R that at every critical error of optim
jumps to the next series instead of stopping the calcu
Hello R experts!
Last week I run in to a lot a problems triyng to fit an ARIMA model to a
time series. The problem is that the internal process of the arima function
call function "optim" to estimate the model parameters, so far so good...
but my data presents a problem with the default method "BF
Hello R-experts,
I want to ask I anyone knows a way to obtain a suitable value for the
parameter of the box-cox transformation for time series (aiming to an Arima
fit). Adittionally, I need to implement this to a list with a lot of series
(about 5300), so if the method is suitable for an FOR-ruti
Hello everybody!
I have an ARIMA model for a time series. This model was obtained through an
auto.arima function. The resulting model is a ARIMA(2,1,4)(2,0,1)[12] with
drift (my time series has monthly data). Then I perform a 12-step ahead
forecast to the cited model... so far so good... but when
Hello everybody!
I have a problem when I try to perform a forecast of an ARIMA model
produced by an auto.arima function. Here is what I'm doing:
c<-auto.arima(fil[[1]],start.p=0,start.q=0,start.P=0,start.Q=0,stepwise=TRUE,stationary=FALSE,trace=TRUE)
# fil[[1]] is time series of monthly data
Hello everybody!
I have a list of length 5000 whose components are (mostly) "ts" objects,
but some these components are intentionally left empty, ie, they are "NULL"
components of the list. My question is how can I get the position of these
null components in a effective way (I'm trying to avoid a
Hello everybody!
I'm having this problem with the auto.arima function that i've not been
able to solve. I use this function on time series that contains NA values,
but every time that the resulting model contains drift I can't perform a
forecasting (using forecast.Arima function). The printed erro
Hello everyone!
I'm kind of a new R user and I'm trying to store several arima models (as
arima models not as lists) in something (vector, matrix, whatever)... i've
tried several things but nothing seems to work the way I need. Ideally I
need a vector (or something) whose entries are Arima class
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