14 Dec
2012
14 Dec
'12
11:22 a.m.
Hi Eman,
Amelia has to estimate many more parameters than the number of variables in
the imputation models, so the number of variables must be (much) lower than
the number of observations. Try marking all but 20-30 variables as "ID" and
running the imputation. In general, you should include any variable that
will be in the subsequent regression model and any that help predict the
missiningness.
Hope that helps!
Cheers,
matt.
On Fri, Dec 14, 2012 at 11:14 AM, Eman Alsaleh <ntxea2(a)nottingham.ac.uk>wrote;wrote:
Hello
I run Amelia and I'm running the imputation order from the menue. I've
received this error:
Amelia Error Code: 34
The number of observations in too low to estimate the number of
parameters. You can either remove some variables, reduce
the order of the time polynomial, or increase the empirical prior.
I have 156 cases and 154 variables . I import the spss file that contains
these data to Amelia. after clicking on the impute icon I received this
error message.
I tried to delete some variables but with no response. I didn't understand
the error message?
so how to deal with this problem?
Thanks
eman
_______________________________________
From: Alsaleh Eman
Sent: 14 December 2012 11:50
To: amelia(a)lists.gking.harvard.edu
Subject: query
Hello
I'm eman . PhD student from university of Nottingham.
I tried to download Amelia software and R program, but they didn't work.
there is instruction on Amelia website telling that we have to download
this file (link) but the link is not opening, So how can we got the (this
file)???
and how I can download Amelia correctly
Thanks
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