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  1. #1
    Join Date
    Nov 2005
    Posts
    3,328

    Missing LOC value

    [edited from support email]

    I'm having a little programming difficulty. I've attached my Excel file.
    When I try to run this file, I receive a message that says something like, "Row 13 has a missing value in the LOC column." Any idea what this could be?

  2. #2
    Join Date
    Nov 2005
    Posts
    3,328
    In your stimulus:

    ~Was this the number you were told to remember (press F key for "yes",
    J key for "no")? 731269

    The double quotes and/or the comma may be causing the trouble since these characters have special meaning in a comma delimited file. Try this stimulus without the double quotes first (maybe use single quotes?) and then without the comma is that doesn't work.

  3. #3
    Hi Jarvis.
    I'm having the same problem too. It says line 11 has a value for a loc column.
    Here is my input file.
    Attached Files Attached Files

  4. #4
    Join Date
    Nov 2005
    Posts
    3,328
    First thing I noticed is that you have what looks to be two Time columns (columns N and O). Do you want the stimuli displayed for 200ms or do you want to capture and RT? Do you see what I mean?

  5. #5
    ahhh!
    i can't believe i missed that.
    excellent. thanks.

  6. #6
    Join Date
    Jan 2008
    Posts
    4

    Missing LOC and Missing Time

    Hi Jarvis,

    I've started developing my test on an XP machine while the Vista edition is being sorted, but am getting a similar problem to others in having a 'Missing LOC value in Row 2'. This doesn't happen if I delete the 'bgr' and 'wgr' columns, but then I get the message 'Row 16 has missing Time value', despite having identical time values to those before it. Originally the attached file was much larger and I was told Row 32 had the problem, so I removed that section without touching anything before it - and that's when it gave the same message about row 16. What do you think? Is the fact I'm using mpeg files anything to do with it?

    Regards
    Attached Files Attached Files

  7. #7
    Join Date
    Jul 2010
    Posts
    1

    I too am having a Missing LOC value problem

    blocktrialbgrwgrstylestimloctime*11001_ADMSNR.MPG.ff.avi(640X480)0,0,110000*
    The error message says Row 2 (which is the row referenced above) has a missing value for one of its LOC columns.

    Please advise.

    Lynne Cuellar

  8. #8
    Join Date
    Nov 2005
    Posts
    3,328
    Usually it's due to a typo or something unusual on the prior line--i.e., if it says "line 45", look at line 44 also. Usually what it means is that something is messing with the usual input of the session file. It could occur on the same line where DirectRT gets confused--but again, it could occur on the previous line--e.g., if the previous trial has a stimulus with a location but no time value. Or if there is a missing WGR, or BGR column--that kind of thing.

  9. #9
    Join Date
    Nov 2017
    Posts
    1

    Still getting Missing value in LOC message (case 29210)

    Hi,

    I have tried implementing all of the suggestions that I thought were applicable to my file and I am still receiving this message. I have attached my input file in hopes that someone could help me see what the issue is.

    Thanks!

    Thesis_DirectRT-nottl3.csv
    Last edited by jason_reed; 11-03-2017 at 11:56 AM.

  10. #10
    Join Date
    Feb 2013
    Posts
    1,093
    Cells G2 through G25 have nothing in them. You need a valid entry for a stim cell in them. Put at least a ~ for a blank screen.
    Jason Reed
    Empirisoft Software Support Specialist

  11. #11

    experiment opens up to black screen then closes (case 31538)

    I initially had the "missing LOC value" problem, but after making changes mentioned above the problem went away. But, now when I open the input file a blank black screen opens and closes immediately. Does anyone see the problem?
    I want the experiment to run as follows- open up to instructions, press Enter to continue, a question is displayed, and the program records and measures RT for a verbal response. I'm using v2012. Thank you

    verbalresponse.zip
    Last edited by jason_reed; 06-20-2018 at 04:11 PM.

  12. #12
    Join Date
    Feb 2013
    Posts
    1,093
    Any use of the optional fields columns (i.e., the ones with the header values starting with !) must come between Trial and rbg columns in the .csv input file. You must either completely remove the optional fields column you have named !answer or move it between the Trial and rbg columns.
    Jason Reed
    Empirisoft Software Support Specialist

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