[R] Merging RData files

[Duncan Murdoch]

On 16/01/2018 6:33 AM, Steven Yen wrote:
> Hi all,
> This is great. Again, here is what I need. I run two separate jobs (a.R
> and b.R) with results (say regression outputs) going to a.RData and
> b.RData. I like to put all results in one place (where I can retrieve
> them in one place, ab.RData). The following codes do it (I am not sure
> if line 2 is needed but I am happy). Thank you all.
> 
> load("a.RData")
> save.image("ab.RData")
> load("b.RData")
> save.image("ab.RData")

That's the same as

load("a.RData")
load("b.RData")
save.image("ab.RData")

because the second saved image overwrites the first one.  It'll be okay 
if all the variable names are different in a.RData and b.RData, but will 
lose values from a.RData if any of them have the same names as objects 
in b.RData.  See the link I posted earlier to avoid this.

Duncan Murdoch

> 
> On 1/16/2018 7:08 PM, PIKAL Petr wrote:
>> Huh.
>>
>> I may by completely wrong but you cannot do such "merging". .RData files are AFAIK places where all objects from given session are stored.
>>
>> However you could load each .RData file and save/export result (one object).
>>
>> BTW, what do you mean exactly by "combine/consolidate"?
>>
>> And finally, post your questions in plain text not html, otherwise they can be mangled.
>>
>> Cheers
>> Petr
>>
>>> -----Original Message-----
>>> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Steven Yen
>>> Sent: Tuesday, January 16, 2018 9:44 AM
>>> To: r-help at r-project.org
>>> Subject: [R] Merging RData files
>>>
>>> I ran two separate hours-long projects. Results of each were saved to two
>>> separate .RData files.
>>> Content of each includes, among others, the following:
>>>
>>>                       me    se      t     p sig pc21.age        0.640 0.219  2.918 0.004 ***
>>> pc21.agesq      0.000 0.000    NaN   NaN pc21.inc        0.903 0.103  8.752 0.000
>>> *** pc21.incsq      0.000 0.000    NaN   NaN
>>> pc21.sei10      0.451 0.145  3.122 0.002 *** pc21.sblkprot  -4.334 3.387  1.280
>>> 0.201 ...
>>>
>>> Question: How can I combine/consolidate the two .RData files into one?
>>> Thank you.
>>>
>>>
>>>
>>>
>>>
>>>         [[alternative HTML version deleted]]
>>>
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>