<div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div>Dear expert,</div><div>In computing the fa and md maps, I would use your suggested command</div><div> <pre class="escaped">for PROG in fa md; do
cat dt.Bdouble | ${PROG} | voxel2image -outputroot ${PROG} -header 4Ddwi_b1000.nii.gz
done<br></pre><pre class="escaped">but I got this error:<br><br></pre></div><div>Dec 04, 2018 12:54:49 PM data.ExternalDataSource initFileInput<br>INFO: reading data from standard input</div><div><br></div><div>by surfing your mailing list, I found the superseded command:</div><div>fa -inputfile dt.Bdouble -header 4Ddwi_b1000.nii.gz -outputfile fa.nii.gz</div><div><br></div><div>and it worked and now I have my fa and md maps.</div><div>Now, in order to compute the eigin system, I run the command;</div><div>cat dt.Bdouble | dteig > dteig.Bdouble<br></div><div>and again I see the same error:</div><div>Dec 04, 2018 12:54:49 PM data.ExternalDataSource initFileInput<br>INFO: reading data from standard input</div><div><br></div><div>I dunno what to do and generally I wonder what this error is related to.</div><div>Thanks in advance for any help.</div><div>Best</div><div>Maedeh<br></div><div><br></div></div></div></div></div>