[BioC] Coercing SimpleList to CompressedList objects

[Leonard Goldstein]

Dear all, 

I ran into some trouble when trying to coerce SimpleList to CompressedList objects.

It is possible to coerce CompressedList to SimpleList objects via the constructor function. For example: 

> lc <- IntegerList(1:10, compress = TRUE)
> class(lc)[1]
[1] "CompressedIntegerList"
> class(IntegerList(lc, compress = FALSE))[1]
[1] "SimpleIntegerList"

However, the converse is not supported:

> ls <- IntegerList(1:10, compress = FALSE)
> class(ls)[1]
[1] "SimpleIntegerList"
> class(IntegerList(ls, compress = TRUE))[1]
[1] "SimpleIntegerList"

Would it be possible to implement coercion in both directions? 

Many thanks for your help,

Leonard


> sessionInfo()
R version 3.0.1 (2013-05-16)
Platform: x86_64-apple-darwin10.8.0 (64-bit)

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] parallel  stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] IRanges_1.19.15    BiocGenerics_0.7.2

loaded via a namespace (and not attached):
[1] stats4_3.0.1 tools_3.0.1 
> 

--
Leonard Goldstein, PhD
Postdoctoral Research Fellow
Department of Bioinformatics & Computational Biology
Genentech, Inc.