<div dir="ltr">Steve,<div><br></div><div>Thank you very much for your input and all of the helpful information! I will check to see which format my triggers are in. I think that some of my epochs may have more than one trigger, so I will look further into resolving this issue. I will let you know if I cannot work around the error and request a sample of your code. I appreciate it.</div><div><br></div><div>Thanks!</div><div>Ken</div><div><br></div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div>--</div><div><br></div><font face="arial, helvetica, sans-serif">Kenneth Bennett</font></div><div dir="ltr"><font face="arial, helvetica, sans-serif">Second Year Clinical Graduate Student</font></div><div dir="ltr"><font face="arial, helvetica, sans-serif"><span style="color:rgb(0,0,0)"><font size="2">Affective Neuroscience Laboratory</font></span><br>Department of Psychology<br>University of Wisconsin-Milwaukee</font><br></div></div><div><font face="arial, helvetica, sans-serif">334 Garland Hall</font></div><div><br></div><div><br></div><div><b>CONFIDENTIALITY NOTICE: </b><font face="Arial,Helvetica,sans-serif" size="2" style="color:rgb(0,0,0)">This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential or proprietary information which is legally privileged. Any unauthorized review, use, disclosure, or distribution is prohibited. If you are not the intended recipient, please promptly contact the sender by reply e-mail and delete the message.</font></div></div></div></div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">On Tue, Feb 9, 2016 at 1:48 AM, Stephen Politzer-Ahles <span dir="ltr"><<a href="mailto:stephen.politzer-ahles@ling-phil.ox.ac.uk" target="_blank">stephen.politzer-ahles@ling-phil.ox.ac.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div>Hi Ken,<br><br></div>This is not an EEGLAB-related error, this is an error in your code. As the error messages explain, the str2num() function requires its input to be a string (it converts a string to a numeric format, for example, str2num( '2' ) returns the integer 2 rather than the string '2'). But EEG.event.type in your dataset is apparently not in string format. Probably what happened is that whoever wrote the script wrote it with the assumption that EEG.event.type was always a string (e.g. a trigger number coded as a string, like '1', '2', etc.; some EEG acquisition systems record the triggers in this way), but yours is in another format. Maybe it's already in integer format; more likely, you have some epochs which include more than one trigger. For instance, if epoch 1 happens to have three triggers in it, then EEG.event(1).type might be e.g. {'1' '2' '3'}; str2num() cannot take this value as input.<br><br></div>For what it's worth, I use a similar approach in my code (also using arrayfun() to pull out the triggers from the EEG.event structure); if you are not able to work around this error, let me know and I can send a sample of my code, which has had to handle the exact same kind of situation I described above (multiple events within a single epoch).<br><br></div>Best,<br></div>Steve<br></div><div class="gmail_extra"><br clear="all"><div><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><span><div><br><br>---<br></div>Stephen Politzer-Ahles<br>University of Oxford<br>Language and Brain Lab<br>Faculty of Linguistics, Phonetics & Philology<br><a href="http://users.ox.ac.uk/~cpgl0080/" target="_blank">http://users.ox.ac.uk/~cpgl0080/</a></span></div></div></div></div></div></div></div>
<br><div class="gmail_quote"><div><div class="h5">On Mon, Feb 8, 2016 at 11:19 PM, Ken Bennett <span dir="ltr"><<a href="mailto:benne257@uwm.edu" target="_blank">benne257@uwm.edu</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div dir="ltr">Hello all,<div><br></div><div>I am having some difficulties running startle EMG data through a shared matlab script. The script runs a high pass filter, rectify, low pass, epoch/baseline correct, artifact rejection, and peak score. Whenever I run it, I receive an error that says:</div><div><span style="background-color:rgb(255,255,255)"><font color="#ff0000"><br></font></span></div><p class="MsoNormal"><span style="background-color:rgb(255,255,255)"><font color="#ff0000">Error using str2num (line 33)</font></span></p>
<p class="MsoNormal"><span style="background-color:rgb(255,255,255)"><font color="#ff0000">Requires string or character array input.</font></span></p><p class="MsoNormal"><span style="background-color:rgb(255,255,255)"><font color="#ff0000"><br></font></span></p>
<p class="MsoNormal"><span style="background-color:rgb(255,255,255)"><font color="#ff0000">Error in @(x)(str2num(EEG.event(x).type))</font></span></p><p class="MsoNormal"><span style="background-color:rgb(255,255,255)"><font color="#ff0000"><br></font></span></p>
<p class="MsoNormal"><span style="background-color:rgb(255,255,255)"><font color="#ff0000">Error in EEGLAB_StartleReduction (line 34)</font></span></p>
<p class="MsoNormal"><span style="background-color:rgb(255,255,255)"><font color="#ff0000"></font></span></p><div><span style="background-color:rgb(255,255,255)"><font color="#ff0000"> triggers =
arrayfun( @(x)(str2num(EEG.event(x).type)), 1:length(EEG.event) )’; </font></span></div><div><br></div><div><br></div><div>I tried troubleshooting the error with a colleague who also uses this script, but we could not fix it. Is anyone familiar with this script and/or this error?</div><div><br></div><div>Here is a link to the .set file and script file (EEGLAB_StartleReduction.m): <a href="http://1drv.ms/1KBCFPA" target="_blank">http://1drv.ms/1KBCFPA</a></div><div><br></div><div>Please let me know if you have any questions or comments.</div><div><br></div><div>Thanks!</div><div>Ken</div><div><br clear="all"><div><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div>--</div><div><br></div><font face="arial, helvetica, sans-serif">Kenneth Bennett</font></div><div dir="ltr"><font face="arial, helvetica, sans-serif">Second Year Clinical Graduate Student</font></div><div dir="ltr"><font face="arial, helvetica, sans-serif"><span style="color:rgb(0,0,0)"><font size="2">Affective Neuroscience Laboratory</font></span><br>Department of Psychology<br>University of Wisconsin-Milwaukee</font><br></div></div><div><font face="arial, helvetica, sans-serif">334 Garland Hall</font></div><div><br></div><div><br></div><div><b>CONFIDENTIALITY NOTICE: </b><font style="color:rgb(0,0,0)" face="Arial,Helvetica,sans-serif" size="2">This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential or proprietary information which is legally privileged. Any unauthorized review, use, disclosure, or distribution is prohibited. If you are not the intended recipient, please promptly contact the sender by reply e-mail and delete the message.</font></div></div></div></div></div></div></div></div></div></div></div>
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