14 Nov
2015
14 Nov
'15
3:28 p.m.
At 22:40 11/12/2015, W. D. wrote:
At 21:30 11/12/2015, Matt Blackwell wrote:
I had to export the data to 5 text files and
combine them manually, deleting the extra header
records. I then imported the combined,
imputed data and ran a regression:
lm.ImputedDataAll5 <- lm(DepVar ~ IndVar1 + IndVar2 +
IndVar3 + IndVar4 + IndVar5, data=ImputedDataAll5)
Is there some way to skip the manual editing steps
and use the imputed data structure with lm?
Thanks for any light you can shed.
Hi there,Â
I actually don't think you actually need to use ameliabind() here.
The amelia
output already has all of the datasets together. It might
help us to know what is it that you want to accomplish with
ameliabind() in this case.
Cheers,
Matt
Thanks, Matt.
I'm just trying to do a plain old linear regression.
I tried going the ameliabind() route because when
trying to use lm() with the 5 sets of imputed data,
I get the following error:
Error in as.data.frame.default(data) :
cannot coerce class ""amelia"" to a data.frame
Would you please let me know the proper way to regress
these 5 datasets?
Thanks!
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On Thu, Nov 12, 2015 at 10:11 PM, W. D.
<<mailto:WD@a7h.com>WD@a7h.com> wrote:
At 06:47 11/11/2015, Matt Blackwell wrote:
>Hi there,Ã
>
>The 5 imputed datasets are actually contained in the DataImputed
object and you
can access each imputed dataset like so:
>
>DataImputed$imputations[[1]]
>DataImputed$imputations[[2]]
>
>And so on. ameliabind() will merge the output of two amelia() calls
into 1 so
that if each had 5 imputed datasets, then the binded object
will have 10.Ã
Thanks for the clue, Matt.
However when I run:
DataImputedAll <- ameliabind(DataImputed$imputations[[1]],
DataImputed$imputations[[2]], DataImputed$imputations[[3]],
DataImputed$imputations[[4]], DataImputed$imputations[[5]])
It rudely spits out:
"All arguments must be amelia output."
When searching for that particular error, there isn't anything
useful.
What do you suggest?
Thanks for your assistance!
>Hope that helps!
>
>Cheers,
>Matt
>
>~~~~~~~~~~~
>Matthew Blackwell
>Assistant Professor of Government
>Harvard University
>url:
<<http://www.mattblackwell.org>http://www.mattblackwell.org>http://www
.mattblackwell.orgÃ
>
>On Wed, Nov 11, 2015 at 1:14 AM, W. D.
<<mailto:WD@a7h.com><mailto:WD@a7h.com>WD@a7h.com> wrote:
>If 5 sets of data are generated using a
command like
>this:
>
>DataImputed <- amelia(x=GroupData,incheck=TRUE)
>
>What would be the names of the 5 sets of data in order
>to use ameliabind?
>
>DataImputedAll <- ameliabind(set1?, set2?, set3?, set4?, set5?)
>
>There seem to be a dearth of examples online.
>
>Thanks for your help.
>
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