[R] Merging RData files

[Steven Yen]

Understood. In my case, a.RData and b.RData contain identical 
variables/data, plus simulation outputs from separate runs. The codes 
deliver what I need. Good to know the three lines work. Thank you.

On 1/16/2018 8:06 PM, Duncan Murdoch wrote:
> 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.
>>>>
>>>>
>>>>
>>>>
>>>>
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>>>>
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>
>

-- 
styen at ntu.edu.tw (S.T. Yen)


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