On Thu, 2005-01-13 at 11:00 -0800, Weiwei Shi wrote: > Hi, > I happen to re-write my codes to save memory and my > approach is write my obj into file first and later I > load it. > > However, it seems like: > load(filename) can load the object but the function > returns the name of the object instead of the > reference to it. For example, I have an object called > r0.prune, which is saved by > save(r0.prune, file='r0.prune') > > and later, I want to load it by using: > load('r0.prune') > but I need to put the reference to the object r0.prune > into a var or a list. I tried: > t<-load('r0.prune'), > and class(t) gave me a char, which means t stores the > name of obj instead of the obj itself. > > Sorry for the dumb question but please help...
Does the following help? # create the object > r0.prune <- 1:10 # display the object > r0.prune [1] 1 2 3 4 5 6 7 8 9 10 # save the object > save(r0.prune, file='r0.prune') # show the object is present > ls() [1] "r0.prune" # remove the object > rm(r0.prune) # show that the object is gone > ls() character(0) # reload the object into the current workspace > load('r0.prune') # show the object is back > ls() [1] "r0.prune" # display the object > r0.prune [1] 1 2 3 4 5 6 7 8 9 10 # now remove the object again > rm(r0.prune) # It's gone > ls() character(0) # now use: > t <- load('r0.prune') # See what is now present > ls() [1] "r0.prune" "t" > t [1] "r0.prune" > r0.prune [1] 1 2 3 4 5 6 7 8 9 10 't' returns the _name(s)_ of the loaded object(s) as a character vector, just as documented. The object itself is available in the workspace. You can use 'r0.prune' just as per normal routine: > mean(r0.prune) [1] 5.5 > MyList <- list(r0.prune) > MyList [[1]] [1] 1 2 3 4 5 6 7 8 9 10 HTH, Marc Schwartz ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html