R help - Sep 2007 - What is RDA file and how to open it in R program?

Hi,

I have a set of gene expression data in .RDA file. I have downloaded
Bioconductor and R program for analyzing these data. Anyway, I am not sure how
to open this RDA file in R program (what is the command?) in order to look at
these data. And which package should I use for analyzing it e.g. plot the
expression image?

Thank you.
Jittima

Jittima Piriyapongsa wrote:
> I have a set of gene expression data in .RDA file. I have downloaded
> Bioconductor and R program for analyzing these data. Anyway, I am not sure
how
> to open this RDA file in R program (what is the command?) in order to look
at
> these data.
load("filename.RDA")

(.RDA (or .rda) is short for .RData (or .rdata :-).  It is the usual
file format for saving R objects to file (with save() or
save.image()).)
> And which package should I use for analyzing it e.g. plot the
> expression image?
That depends entirely on what is inside the file.  The best idea is
probably to ask the one(s) who created the file.

-- 
Bj?rn-Helge Mevik

attach("file.RDA") # attaching the file to R, all its variables become
'visible'
# it should be on the 2nd position of the search path.
# see ?search
ls(2) # list everything in 2nd position of the search path

You can also load() this file.
In this case all data from this file will be loaded to the global
environment and mixed with those already existing in it.


Jittima Piriyapongsa wrote:
> 
> Hi,
> 
> I have a set of gene expression data in .RDA file. I have downloaded
> Bioconductor and R program for analyzing these data. Anyway, I am not sure
> how
> to open this RDA file in R program (what is the command?) in order to look
> at
> these data. And which package should I use for analyzing it e.g. plot the
> expression image?
> 
> Thank you.
> Jittima
> 
> 
-- 
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