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    <p>It's not an error message. It is only a warning. SPSS refuses to document their file formats so people have not been motivated to track down by reverse engineering the structure of new "subtypes". There is no way to file a bug report without getting roasted because there is no bug .... other than a closed format and that bug complaint should be filed with the owners of SPSS!</p> <p>EDIT: The R-Core is a volunteer group and takes it responsibilities very seriously. It exerts major efforts to track down anything that affects the stability of systems or produces erroneous calculations. If you were willing to be a bit more respectful of the authors of R and suggest the possibility of collaboration on the R-devel mailing list to identify solutions to this problem without using the term "bug", you would arouse much less hostility. There might be someone who would be willing to see if a simple .sav file such as the one you constructed could be examined under a hexadecimal microscope to identify whatever infinite negative value is being mistaken for another infinite negative value. Most of the R-Core is not in possession of working copies of SPSS.</p> <p>You could offer this link as an example of the product of others who have attempted the reverse engineering of SPSS .sav formats:</p> <p><a href="http://svn.opendatafoundation.org/ddidext/org.opendatafoundation.data/references/pspp_source/sfm-read.c" rel="nofollow">http://svn.opendatafoundation.org/ddidext/org.opendatafoundation.data/references/pspp_source/sfm-read.c</a></p> <p>Edit: 4/2015; I have seen a recent addition to the <code>?read.spss</code> help file that refers one to pkg:memisc: "A different interface also based on the PSPP codebase is available in package memisc: see its help for <code>spss.system.file</code>." I have used that package's function successfully (once) on files created by more recent versions of SPSS.</p>
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    1. CO+1 Well put....
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    2. COI understand that the fundamental problem is SPSS' file format. I just want to be absolutely that the data will import without error or if there is a possibility for error, what that is. And, by error, I mean any situation where the data imported may differ from what I would intuitively expect based on what the data looks like in SPSS and the settings used in read.spss(). I'm using R in a corporate environment. Discussing the intricacies of the GPL and why its not R's fault if an analysis goes haywire with my clients is not something I want to do.
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    3. COMy reluctance to discuss this on the R mailing list is because of comments like the ones from DWin and Andrie. Many of the participants on the R mailing list share your attitude, but tend to be less polite about sharing them. I find such elitism to be nearly insufferable. I spread FOSS by using it and showing people that it works, not by standing on a soap box.
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