changing itemprobabilities of list mid-script

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changing itemprobabilities of list mid-script

changing itemprobabilities of list mid-script

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thv	thv posted 7 Years Ago Topic Details Share Topic
Group: Forum Members Posts: 23, Visits: 73	I want to change the itemprobabilities attribute of a list partway through my script. Is there a way to do this? I tried / ontrialend = [list.times.itemprobabilities = [0.2;0.8;] and several variations of this but did not have any luck (it did not like the syntax)
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Dave	Dave posted 7 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 12K, Visits: 98K	+x thv - Monday, February 13, 2017 I want to change the itemprobabilities attribute of a list partway through my script. Is there a way to do this? I tried / ontrialend = [list.times.itemprobabilities = [0.2;0.8;] and several variations of this but did not have any luck (it did not like the syntax) The proper syntax to do this would be something like: <list mylist> / items = ("A", "B") / itemprobabilities = (0.20; 0.80) / poolsize = 10 </list> <trial mytrial> / ontrialbegin = [ values.myvalue = list.mylist.nextvalue ] / stimulusframes = [1=mytext] / validresponse = (57) </trial> <values> / myvalue = "" </values> <text mytext> / items = ("<%values.myvalue%>") </text> <block more_b> / trials = [1-10 = mytrial] </block> <block more_a> / onblockbegin = [ list.mylist.itemprobabilities.1 = 0.80; list.mylist.itemprobabilities.2 = 0.20; ] / trials = [1-10 = mytrial] </block> <expt> / blocks = [1=more_b; 2=more_a] </expt>
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thv	thv posted 7 Years Ago ANSWER Post Details Share Post
Group: Forum Members Posts: 23, Visits: 73	+x Dave - Monday, February 13, 2017 +x thv - Monday, February 13, 2017 I want to change the itemprobabilities attribute of a list partway through my script. Is there a way to do this? I tried / ontrialend = [list.times.itemprobabilities = [0.2;0.8;] and several variations of this but did not have any luck (it did not like the syntax) The proper syntax to do this would be something like: <list mylist> / items = ("A", "B") / itemprobabilities = (0.20; 0.80) / poolsize = 10 </list> <trial mytrial> / ontrialbegin = [ values.myvalue = list.mylist.nextvalue ] / stimulusframes = [1=mytext] / validresponse = (57) </trial> <values> / myvalue = "" </values> <text mytext> / items = ("<%values.myvalue%>") </text> <block more_b> / trials = [1-10 = mytrial] </block> <block more_a> / onblockbegin = [ list.mylist.itemprobabilities.1 = 0.80; list.mylist.itemprobabilities.2 = 0.20; ] / trials = [1-10 = mytrial] </block> <expt> / blocks = [1=more_b; 2=more_a] </expt> Thanks!!
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