Hi Eman, <div><br></div><div>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 &quot;ID&quot; 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. </div>


<div><br></div><div>Hope that helps!<br></div><div><br></div><div><div>Cheers,</div><div>matt.</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Dec 14, 2012 at 11:14 AM, Eman Alsaleh <span dir="ltr">&lt;<a href="mailto:ntxea2@nottingham.ac.uk" target="_blank">ntxea2@nottingham.ac.uk</a>&gt;</span> wrote:<br>


<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello<br>
I run Amelia and I&#39;m running the imputation order from the menue. I&#39;ve received this error:<br>
<br>
Amelia Error Code: 34<br>
 The number of observations in too low to estimate the number of<br>
 parameters.  You can either remove some variables, reduce<br>
 the order of the time polynomial, or increase the empirical prior.<br>
<br>
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.<br>
I tried to delete some variables but with no response. I didn&#39;t understand the error message?<br>
 so how to deal with this problem?<br>
Thanks<br>
eman<br>
_______________________________________<br>
<br>
From: Alsaleh Eman<br>
Sent: 14 December 2012 11:50<br>
To: <a href="mailto:amelia@lists.gking.harvard.edu" target="_blank">amelia@lists.gking.harvard.edu</a><br>
Subject: query<br>
<br>
Hello<br>
I&#39;m eman . PhD student from university of Nottingham.<br>
I tried to download Amelia software and R program, but they didn&#39;t work.<br>
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)???<br>
and how I can download Amelia correctly<br>
<br>
Thanks<br>
 <a href="mailto:amelia@lists.gking.harvard.edu" target="_blank">amelia@lists.gking.harvard.edu</a>.<br>
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