title: Merging files in spss
body: <p>Merging files in spss</p>
  
  <p>Hi,
  I have a problem in merging files. Here's what I need to do: I have chosen 200 cases from 7000 in ArcMap (GIS-program). In the process I have lost some of the cases' variable information. </p>
  
  <p>Now I would like to get the variables back to my smaller dataset, and I used <code>data-&gt; merge files &gt; add variables</code>, and ID as match, <code>match cases on &gt; keyvariables in sorted files &gt; both files provide cases</code>.</p>
  
  <p>This gave a dataset of all the 7000 cases, only the variables already existed in the first table didn't add to the merged dataset. I tried also all different choises, but none of them gave me the result I wanted. This would be the 200 cases added with the variables that were lost in the process. </p>
  
  <p>So in a nutshell how do I merge/replace the info from variables A (dataset) to variables B(dataset) without extra cases´ from A (only the info of the selected 200 cases´out of 7000)?</p>