InstantForum 2017-1 FinalMillisecond Forumshttps://forums.millisecond.com/Millisecond ForumsWed, 23 Sep 2026 06:00:48 GMT20https://forums.millisecond.com/Topic19330.aspxHello!<br/>How can I give half of my trials a certain marker (such as "same category") and the other half a different marker (such as "different category") and then have that information available in my data file--so I can sort the trials according to these two different markers?&nbsp;<br/>Does this make sense?<br/>Thanks!<br/>KatlynWed, 29 Jun 2016 13:07:38 GMTKatlyn.Frey@ColoradoCollege.eduhttps://forums.millisecond.com/Topic19333.aspxSuppose you have two "same category" &lt;trial&gt; elements , and two "different category" &lt;trial&gt; elements. <br/><br/>Set up a &lt;values&gt; entry:<br/><br/>&lt;values&gt;<br/>/ category = ""<br/>...<br/>&lt;/values&gt;<br/><br/>and set that value to the appropriate label in your trials:<br/><br/>&lt;trial same_a&gt;<br/>/ ontrialbegin = [values.category = "same category"]<br/>...<br/>&lt;/trial&gt;<br/><br/>&lt;trial same_b&gt;<br/>/ ontrialbegin = [values.category = "same category"]<br/>...<br/>&lt;/trial&gt;<br/><br/><br/>&lt;trial different_a&gt;<br/>/ ontrialbegin = [values.category = "different category"]<br/>...<br/>&lt;/trial&gt;<br/><br/>&lt;trial different_b&gt;<br/>/ ontrialbegin = [values.category = "different category"]<br/>...<br/>&lt;/trial&gt;<br/><br/>Specify the &lt;data&gt; element in the script to log the respective value:<br/><br/>&lt;data&gt;<br/>/ columns = [date time subject group blocknum blockcode trialnum trialcode response latency correct ... values.category]<br/>...<br/>&lt;/data&gt;<br/><br/>You can then sort by values.category as needed.<br/>Wed, 29 Jun 2016 13:07:38 GMTDave