Re: [Rd] Pre-building lazyload DB (fwd)

2005-02-08 Thread James W. MacDonald
What is the benefit of lazyload DB in this circumstance? I don't see it if your .rda files have one data object each and are compressed. The paradigm we have been following is to have all the environments saved in individual .rda files, so after loading the package they can be accessed with e.g.

Re: [Rd] Pre-building lazyload DB

2005-02-08 Thread Prof Brian Ripley
What is the benefit of lazyload DB in this circumstance? I don't see it if your .rda files have one data object each and are compressed. Do you have a `data/filelist' index in your packages, as suggested by 200update.txt and `Writing R Extensions'? The slow examples I have seen did not and so w

[Rd] Pre-building lazyload DB

2005-02-08 Thread James MacDonald
Hi all, Bioconductor has several metaData packages that contain quite large data sets. In the past, these data were simply held in the /data directory of the package as .rda files and load()ed as needed. Converting to using lazy data loading may have memory and performance advantages, but for the