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Thanks! I downloaded the mdp and now it works!<div><br></div><div>Meng<br><br>&gt; Date: Tue, 16 Nov 2010 14:58:46 -0500<br>&gt; From: debian@onerussian.com<br>&gt; To: pkg-exppsy-pymvpa@lists.alioth.debian.org<br>&gt; Subject: Re: [pymvpa] error when running example script - projections.py<br>&gt; <br>&gt; you would need to install mdp for that example:<br>&gt; http://mdp-toolkit.sourceforge.net/<br>&gt; <br>&gt; under Debian (e.g. within that virtual machine) it is <br>&gt; <br>&gt; apt-get install python-mdp<br>&gt; <br>&gt; On Tue, 16 Nov 2010, Meng Liang wrote:<br>&gt; <br>&gt; &gt;    Dear all,<br>&gt; &gt;    Another question: when I tried to run the example script (projections.py<br>&gt; &gt;    in \doc\examples), I got the following error:<br>&gt; &gt;    Traceback (most recent call last):<br>&gt; &gt;      File<br>&gt; &gt;    "D:\data\Software\python\pymvpa_0.4.4\pymvpa-0.4.4\doc\examples\projections.py",<br>&gt; &gt;    line 16, in &lt;module&gt;<br>&gt; &gt;        from mvpa.mappers.pca import PCAMapper<br>&gt; &gt;      File "C:\Python25\Lib\site-packages\mvpa\mappers\pca.py", line 20, in<br>&gt; &gt;    &lt;module&gt;<br>&gt; &gt;        if externals.exists('mdp', raiseException=True):<br>&gt; &gt;      File "C:\Python25\Lib\site-packages\mvpa\base\externals.py", line 455,<br>&gt; &gt;    in exists<br>&gt; &gt;        raise RuntimeError, "Required external '%s' was not found" % dep<br>&gt; &gt;    RuntimeError: Required external 'mdp' was not found<br>&gt; &gt;    Any advice? Many thanks!<br>&gt; &gt;    Meng<br>&gt; <br>&gt; &gt; _______________________________________________<br>&gt; &gt; Pkg-ExpPsy-PyMVPA mailing list<br>&gt; &gt; Pkg-ExpPsy-PyMVPA@lists.alioth.debian.org<br>&gt; &gt; http://lists.alioth.debian.org/mailman/listinfo/pkg-exppsy-pymvpa<br>&gt; <br>&gt; <br>&gt; -- <br>&gt;                                   .-.<br>&gt; =------------------------------   /v\  ----------------------------=<br>&gt; Keep in touch                    // \\     (yoh@|www.)onerussian.com<br>&gt; Yaroslav Halchenko              /(   )\               ICQ#: 60653192<br>&gt;                    Linux User    ^^-^^    [175555]<br>&gt; <br>&gt; <br>&gt; <br>&gt; _______________________________________________<br>&gt; Pkg-ExpPsy-PyMVPA mailing list<br>&gt; Pkg-ExpPsy-PyMVPA@lists.alioth.debian.org<br>&gt; http://lists.alioth.debian.org/mailman/listinfo/pkg-exppsy-pymvpa<br></div>                                               </body>
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