Try this: sapply(modelStack, slot, 'fit')['coef',]
On Wed, Mar 17, 2010 at 7:11 AM, torgrims <torgr...@stud.ntnu.no> wrote: > > Hey, > > I have stacked a couple of garchFit objects in a list with names $fit1, > $fit2, ..., $fiti assigning objects names using a loop, i.e. after running > the loop modelStack = list($fit1, $fit2,...,$fiti). > > Thus the following apply; > a = modelStack$fit2, then a is the second garchFit object of formal class > 'fGarch' with 11 slots, @call, @formula... etc. > > I then want to extract information in the 11 slots using another for loop, > say i want to access the slot a...@fit$coef. In order for this to happen I > need > to combine modelStack$fit2, where the $fit2 object name must be constructed > in the loop, with the slot name @fit$coef. > > In order to construct the proper list names one could use the following in > the for loop; > name = paste("modelStack$fit",i,"@fit$coef",sep="") # > "modelstack$f...@fit$coef" for i = 2, > > and then use something like > get(name) > > But this returns; Error in get(name) : object 'modelstack$f...@fit$coef' not > found > > If I just type modelstack$f...@fit$coef in the command window it returns the > proper info from the object list. I figure this is because R somehow > interpret "$" and "@" in get() differently than $ and @ as "list > separators". > > Does anyone know how to extract information in slots of listed objects using > a loop and on the run generated variable/object names? > > JT > > sample code > nAssets = length(modelStack) > > for(i in 1:nAssets){ > name = paste("modelStack[",i,"]...@name$series$h",sep="") > a = get(name) > t = length(a) > } # end for loop > > -- > View this message in context: > http://n4.nabble.com/accessing-info-in-object-slots-from-listed-objects-using-loops-tp1596135p1596135.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.