<div dir="ltr">Oh! I did in fact have one, though it's the Zscore-mapper (I had previously thought I checked 'mapper' in res[1].a, but perhaps it came out incorrectly). Though I realize Z-score mapper probably doesn't have a reverse mapper, and perhaps that's the issue? Is there a workaround you may be aware of?<div>
<br></div><div>Thanks!</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Nov 4, 2013 at 10:48 AM, Yaroslav Halchenko <span dir="ltr"><<a href="mailto:debian@onerussian.com" target="_blank">debian@onerussian.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im"><br>
On Mon, 04 Nov 2013, Taku Ito wrote:<br>
<br>
> Are all datasets supposed to have mappers? My data set was loaded<br>
> directly from a NIFTI file, using mvpa2.datasets.mri.fmri_dataset, and<br>
> when I loaded it there was no mapper attached,<br>
<br>
</div>it should be there under .a.mapper ... see e.g.<br>
<a href="http://www.pymvpa.org/tutorial_datasets.html#loading-fmri-data" target="_blank">http://www.pymvpa.org/tutorial_datasets.html#loading-fmri-data</a><br>
for more information<br>
<div class="im"><br>
> though I attributed it<br>
> target values and chunks. In other words, my original data set also does<br>
> not have any mappers. Should I be manually attributing mappers to my data<br>
> set (e.g., the searchlight call or the z-scoring call) and attach all<br>
> those mappers as a Chain?<br>
<br>
</div>let's first figure out if you indeed didn't have any ;-)<br>
<div class="HOEnZb"><div class="h5"><br>
--<br>
Yaroslav O. Halchenko, Ph.D.<br>
<a href="http://neuro.debian.net" target="_blank">http://neuro.debian.net</a> <a href="http://www.pymvpa.org" target="_blank">http://www.pymvpa.org</a> <a href="http://www.fail2ban.org" target="_blank">http://www.fail2ban.org</a><br>
Senior Research Associate, Psychological and Brain Sciences Dept.<br>
Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755<br>
Phone: <a href="tel:%2B1%20%28603%29%20646-9834" value="+16036469834">+1 (603) 646-9834</a> Fax: <a href="tel:%2B1%20%28603%29%20646-1419" value="+16036461419">+1 (603) 646-1419</a><br>
WWW: <a href="http://www.linkedin.com/in/yarik" target="_blank">http://www.linkedin.com/in/yarik</a><br>
<br>
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<div><br></div>-- <br><div dir="ltr"><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><font color="#666666">Takuya Ito</font></span><br><div><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><font color="#666666">Cognitive Control & Psychopathology Laboratory</font></span></div>
<div><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><font color="#666666">Washington University in St. Louis<br></font></span></div><div><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><font color="#666666"><br>
</font></span></div><div><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><font color="#666666">Cole Neuroscience Laboratory (</font></span><font color="#666666"><a href="http://www.mwcole.net/" target="_blank">http://www.mwcole.net/</a>)</font></div>
<div><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><font color="#666666">Center for Molecular and Behavioral Neuroscience (CMBN)</font></span></div><div><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><font color="#666666">Rutgers-Newark University</font></span></div>
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