Displaying 20 results from an estimated 400 matches similar to: "tamaño de rolling window (series temporales)"
2011 Mar 10
1
3 dimensional MDS plots
Hi,
I am trying to create 3 mds plots: one with axis 1 vs axis 2, one with axis 2 vs axis 3, and one with axis 1 vs axis 3. When inputting my code, I only end up with one diagram and when inputting
mdsg.mds$dims, the program returns 2 for 2 dimensions. How can I create the other two plots?
Any help would be greatly appreciated,
Calla Carbone
The table I use is number of each taxa on each
2010 Jan 31
3
combining data frames in a list - how do I add breaks?
I'm a week-old R user, and have become stuck trying to create usable CSV
outputs for post-processing. I am using the package Rioja, which provides
small datasets of results. I am running several analyses in a loop and
iteratively adding the results to a *list* ("combined"). Within each
iteration I use the following:
> combined[[i]] <- performance(fit)
With two iterations I
2011 Oct 06
2
Titles changing when a plot is redrawn
I ran into a problem with titles on graphs. I wanted a graph with
multiple subplots, with each having a title that involved both
a Greek letter and an identifier for each graph. Below is a
simplified version of code to do this. The graph appears fine,
with the first graph having "i=1" in the title, and the second
graph having "i=2" in the title. However, when I resize the
2011 Jan 07
6
Evaluar función?
Hola a todos!
Soy un novato con R y, como suele pasar, tengo algunas dudas que me gustaría
compartir con vosotros. Antes de nada decir que llevo muchas horas buscando
información y peleándome con los manuales, tanto en inglés como en español,
pero no sé como resolver mi problema que es el siguiente:
¿Cómo puedo hacer para crear un programa con el que, al darle una función y
un punto, me diga que
2013 Dec 03
2
cambiar visión de un "plot"
Hola.
Estoy trabajando con "plot" en R y quiero dibujar un punto justo
encima del eje x porque es el punto que andaba buscando. Es decir, he
encontrado su coordenada "x" y la "y" vale cero. ¿Cómo puedo dibujar
un punto que corte los ejes? (porque normalmente se me queda dentro de
la gráfica).
Además, aunque le exija que empiece en el cero, el eje y no emepieza
2013 Nov 29
2
Listas en R
Hola.
Me interesa meter una serie de regresiones lineales en una lista a la
que voy a denominar L.
El problema es que a posteriori necesito sacar valores de esas regresiones.
Sin embargo, al llamar a L[1] este no es un objeto del tipo "lm" sino que es
del tipo "list" y no puedo aplicarle funciones relacionadas con la
regresión (tal y como puede ser hacer un summary para
2007 Aug 04
2
multiple nls - next fit even after convergence problem
Hello R-gurus,
I'm trying to adjust different growth curves to a rather extensive dataset.
I wrote up a function to go through all of them, but am encountering a problem :
among the more than 1000 curves I have, obviously for some of them I encounter conversion problems.
I'd like for my function to keep going to the next curve and store the fact that for curve number X I had a convergence
2004 Mar 20
9
Operating on windows of data
I have a data set that is comprised of, for simplicity, a vector of numbers that I want to march across in overlapping windows of say 10 values each, computing a couple of values for each window. Is there a vectorized way to do this, or do I truly need to resort to looping--I think so? Any other clever thoughts?
Thanks,
Sean
[[alternative HTML version deleted]]
2010 Mar 22
1
help needed with boxplot
I am new to R, can anyone help with boxplot for a dataset like:
file1 col1 col2 col3 col4 col5
050350005 101 56.625 48.318 RED
051010002 106 50.625 46.990 GREEN
051190007 25 65.875 74.545 BLUE
051191002 246 52.875 57.070 RED
220050004 55 70 80.274 BLUE
220150008 75 67.750 62.749 RED
220170001 77 65.750 54.307 GREEN
file2
col1 col2 col3 col4 col5
050350005 101 56.625 57 RED
051010002 106 50.625 77
2011 Nov 17
1
tuning random forest. An unexpected result
Dear Researches,
I am using RF (in regression way) for analize several metrics extract from
image. I am tuning RF setting a loop using different range of mtry, tree
and nodesize using the lower value of MSE-OOB
mtry from 1 to 5
nodesize from1 to 10
tree from 1 to 500
using this paper as refery
Palmer, D. S., O'Boyle, N. M., Glen, R. C., & Mitchell, J. B. O. (2007).
Random Forest Models
2010 Jan 01
1
Questions bout SVM
Hi everyone,
Can someone please help me in these questions?:
1)if I use crossvalidation with svm, do I have to use this equation to calculate RMSE?:
mymodel <- svm(myformula,data=mydata,cross=10)
sqrt(mean(mymodel$MSE))
But if I don’t use crossvalidation, I have to use the following to calculate RMSE:
mymodel <- svm(myformula,data=mydata)
mytest
2011 Nov 15
1
Plot alignment with mtext
I would like the text plotted with 'mtext' to be alighned like it is for
printing on the console. Here is what I have:
> print(emt)
ME RMSE MAE
MPE MAPE MASE
original -1.034568e+07 1.097695e+08 2.433160e+07 -31.30554 37.47713
1.5100050
xreg 1.561235e+01 2.008599e+03 9.089473e+02 267.05490 280.66734
2017 Sep 27
1
need held in r coding.
Need Help in Debugging below script:--------------------------------
dat <- get_majorlandmarks(dat,Dmin,Per)
fit_xts <- xts(dat$fit,order.by = dat$Date,frequency = 365)
close_xts <- xts(dat$Close, order.by = dat$Date, frequency = 365 )
majorlandmarks_xts <-xts(dat$Close[dat$majorlandmarks==TRUE], order.by =
dat$Date[dat$majorlandmarks==TRUE], frequency = 365 )
minorlandmarks_xts
2017 Jul 07
1
Scoring and Ranking Methods
Hi,
I am doing predictive modelling of Multivariate Time series Data of a Motor
in R using various models such as Arima, H2O.Randomforest, glmnet, lm and
few other models.
I created a function to select a model of our choice and do prediction.
Model1 <- function(){
..
return()
}
Model2 <- function(){
...
return()
}
Model3 <- function(){
...
return()
}
main <-
2009 Dec 29
3
error logging
Yet another question...
I'm wondering if there is a built in facility to log errors. I've got this
statement that gives me verbose DBI errors as they come up (to standard
output), but I'd like to trap and log them to a file as I running about
3000000 sql statements through this particular piece of code and I'd like to
keep the loop going and deal with all the errors once the
2006 Dec 22
2
Math expression with object to evaluate
Hello.
I have a question that probably has a simple answer.
I have a loop where several figures are plotted with each iteration. I calculate some descriptives to put in the title of the figure. When I use expression, since I want to combine math plotting symbols and the descriptives I calculate, I get an error. Here is an example of the code that I tried:
plot(x,y,
2009 Jun 03
1
No CHM file
I just built a package in R (version 2.1.1 on a Linux machine) and then moved it to my computer (R version 2.8.1 on a Windows machine). When I loaded the package and tried to open help for one of the commands, I got the following warning:
Warning message:
In print.help_files_with_topic("F:/R/R-2.8.1/library/REEMtree/chm/RMSE") :
No CHM help for 'RMSE' in package
2009 Nov 03
1
random text added to names (bug with 2.10.0?)
I'm using 2.10.0 on Linux (64 bit), and I just noticed that random
numbers are occasionally added to the text of names in vectors. It's
happened to me in two separate, long-running R sessions, but I can't
find a way to reproduce it in a smaller setting.
The code I'm using is
> diag.gam.2 <- mdl.run.diag(fit.gam.2, ds.valid)
> diag.gam.2
rmse mdae.1413751
2023 May 09
1
RandomForest tuning the parameters
Hi Sacha,
On second thought, perhaps this is more the direction that you want ...
X2 = cbind(X_train,y_train)
colnames(X2)[3] = "y"
regr2<-randomForest(y~x1+x2, data=X2,maxnodes=10, ntree=10)
regr
regr2
#Make prediction
predictions= predict(regr, X_test)
predictions2= predict(regr2, X_test)
HTH,
Eric
On Tue, May 9, 2023 at 6:40?AM Eric Berger <ericjberger at gmail.com>
2013 Dec 19
1
Shiny
¡Hola!
Gracais al congreso quiero comenzar a utilizar el paquete Shiny.
Ya he ejecutado algunos ejemplos y me gustaría hacer lo siguiente:
Tengo 4 funciones que devuelven plots.
En la script "ui" es muy facil hacer que se tenga que seleccionar
entre los métodos 1,2,3 y 4 pero ¿cómo hago que en la pantalla
"server" me relacione cada método (función) con esos inputs?
La