Re: [R] tackle memory insufficiency for large dataset using save() load()??

2007-08-22 Thread Charles C. Berry
On Tue, 21 Aug 2007, Jessica Z wrote: [snip] I did not notice a comment on this bit in the other replies: newdata - load (compact_d.Rdata) summary(newdata) Length Class Mode 1 character character newdata is a string whose value is 'd' try print( newdata ) ls()

[R] tackle memory insufficiency for large dataset using save() load()??

2007-08-21 Thread Jessica Z
Hello List, i have been agonizing over this for days, any reply would be greatly appreciated! Situation:___ My original dataset is a .csv dataset (w/ 2M records) with 4 variables: job_id (Primary key, won't be used for analysis, just used for join tables),

Re: [R] tackle memory insufficiency for large dataset using save() load()?

2007-08-21 Thread Gabor Grothendieck
See ?save . The ... arguments are the ***names*** of the objects, not the objects so you want save(d, ...whatever...) not save(d, ...whatever...) . Also don't use attach and detach and read this about factors which applies if your factor has many levels but can be ignored if not:

Re: [R] tackle memory insufficiency for large dataset using save() load()?

2007-08-21 Thread Rolf Turner
On 22/08/2007, at 1:48 PM, Gabor Grothendieck wrote: See ?save . The ... arguments are the ***names*** of the objects, not the objects so you want save(d, ...whatever...) not save(d, ...whatever...) . I think this is wrong. You want the objects not their names. If you want

Re: [R] tackle memory insufficiency for large dataset using save() load()?

2007-08-21 Thread Gabor Grothendieck
?save says its the names (not the objects) although I just tried it and both save(iris, file = /iris.Rdata) and save(iris, file = /iris.Rdata) seemed to work so you are right that it seems to work with the objects, not just the names,\ although its not documented to do so. Usage save(..., list =

Re: [R] tackle memory insufficiency for large dataset using save() load()?

2007-08-21 Thread Rolf Turner
On 22/08/2007, at 2:52 PM, Gabor Grothendieck wrote: ?save says its the names (not the objects) although I just tried it and both save(iris, file = /iris.Rdata) and save(iris, file = /iris.Rdata) seemed to work so you are right that it seems to work with the objects, not just the names,\