[Eeglablist] Problem in exporting .set file to .mff

Mohd Faizal Mohd Zulkifly mfzl_mzly at yahoo.com
Sun Oct 7 09:37:20 PDT 2018 

Dear Arno,
First of all, I am very sorry to keep loading you with the same problem. I have tried a few time in doing averaging in Netstation. For your information, I am using the latest version of EEGLAB v14.1.2 and mffmatlabio v2.0 (i am logged in as an admin as suggested). Unfortunately, it still does not work for me. I tried to understand the source of problems (either my data, analysis steps, my system, etc.) My main motivation to export the preprocessed file back to Netstation is to do source analysis and GTEN planning (software in EGI).
But, it seems that after exporting that file there are no epochs anymore. In my opinion, this is a source of problem where I cannot do averaging because Netstation has no data to average. Please correct me if i am wrong, but i am pretty sure that the file which i sent the link to you really have data epochs. I summarize my questions below:1. Can you really do averaging of my the preprocessed file in your Netstation?2. Do you think Netstation cannot do averaging because of no epoch values after exporting to .mff?3. What is your suggestion so that I can do averaging in Netstation?
Hope to hear from you soon. Thank you and have a nice day.
With best wishes,Faizal   

    On Saturday, 6 October 2018, 20:04, Arnaud Delorme <arnodelorme at gmail.com> wrote:
 

 Dear Faizal,

This is because you do not have writing permission. Try login in as admin on your workstation.
Best wishes,

Arno

> On Oct 6, 2018, at 8:58 AM, Mohd Faizal Mohd Zulkifly <mfzl_mzly at yahoo.com> wrote:
> 
> Dear Arno,
> 
> Yes, I am aware that there is a new plugin available. But, it seems does not work for me when I update from File>Manage EEGLAB extensions>Data import extensions. Below are the commands on Matlab which shows the errors. Do you have any ideas?
>  
> EEGLAB: adding "mffmatlabio" v1.00 (see >> help eegplugin_mffmatlabio)
> You are using the latest version of EEGLAB.
> Retreiving URL with import extensions...
> Retreiving download statistics...
> Updating extension MFFMatlabIO
> Removing extension from path
> Moving extension mffmatlabio to deactivatedplugins folder
> Error using mkdir
> Access is denied.
> 
> 
> 
> Error in plugin_deactivate (line 23)
>    if ~exist(fulldeactivatedpluginfolder), mkdir(fulldeactivatedpluginfolder); end;
> 
> Error in plugin_extract (line 248)
>                plugin_deactivate(plugin(iRow).foldername);
>  
> Error using inputgui (line 207)
> Error while evaluating DestroyedObject Callback.
> 
> With best wishes,
> Faizal
> 
> 
> On Saturday, 6 October 2018, 17:34, Arnaud Delorme <arnodelorme at gmail.com> wrote:
> 
> 
> Dear Faizal,
> 
> There is a new version of the plugin (version 2.0) that fixes this issue. Note that the function you are talking about in EEGLAB (pop_grandaverage) is not an EEGLAB function but a plugin, so it is only supported by its author.
> 
> Best wishes,
> 
> Arno
> 
> > On Oct 6, 2018, at 6:49 AM, Mohd Faizal Mohd Zulkifly <mfzl_mzly at yahoo.com> wrote:
> > 
> > Dear Arno,
> > 
> > This is an additional remark. I have tried to do single trial averaging of the attached file in EEGLAB using function pop_grandaverage.m (instead of doing averaging in Netstation). Then, I exported the average file using export Philips .mff and it came out with this error " EEGLAB error in function mff_exportepoch at line 58(). Reference to non-existent field 'duration'. I am not sure this error is a bug or not because the exported file is unreadable in Netstation. Hope to hear from you soon. Thank you.
> > 
> > With best wishes,
> > Faizal
> > 
> > 
> > On Friday, 5 October 2018, 21:25, Arnaud Delorme <arnodelorme at gmail.com> wrote:
> > 
> > 
> > Let me have a look,
> > 
> > Arno
> > 
> > > On Oct 5, 2018, at 11:18 AM, Mohd Faizal Mohd Zulkifly <mfzl_mzly at yahoo.com> wrote:
> > > 
> > > Dear Arno,
> > > 
> > > Thanks for your reply. I have tested a few times with my preprocessed file (attached in the link). Unfortunately, I cannot do averaging in Netstation because of epochs or in my case DIN (as an event marker) are missing. With no doubt, if I follow your video no matter I segment this file at -0.5ms to 0.5ms or -0.1ms to 0.2ms, the export and averaging works well because there are epochs/DIN values attached to the file. However, when I run this step on my preprocessed file, epochs values are missing, therefore I cannot do averaging in Netstation. I have attached an illustrative explanation in this email as well. In addition, I provided the links to the preprocessed file for you to have a look. Hope to hear something from you on what goes wrong with this file. Please let me know if you need more information. Thank you and have a nice day.
> > > 
> > > https://owncloud.gwdg.de/index.php/s/LIX7HKdLvZnShz1
> > > 
> > > ownCloud - A safe home for all your data
> > > 
> > > ownCloud - A safe home for all your data
> > > KHA_SEP_ep_ar_30.fdt is publicly shared
> > > 
> > > 
> > > 
> > > 
> > > 
> > > With best wishes,
> > > Faizal
> > > 
> > > 
> > > On Thursday, 4 October 2018, 18:50, Arnaud Delorme <arnodelorme at gmail.com> wrote:
> > > 
> > > 
> > > Dear Faizal,
> > > 
> > > I have run more tests. The reason there is no events is that when the data is being exported the program removes the time-locking events (the events at time 0). This is for consistency with Netstation which does the same. If you extract epochs in Netstation between -100 ms and 200 ms, the resulting epoched file has no event either.
> > > 
> > > Let me know if you have more questions.
> > > 
> > > Best wishes,
> > > 
> > > Arno
> > > 
> > > > On Oct 2, 2018, at 10:18 PM, Mohd Faizal Mohd Zulkifly <mfzl_mzly at yahoo.com> wrote:
> > > > 
> > > > Dear Arno,
> > > > 
> > > > Many thanks for your kind reply. I would like to know is there any news about an issue at 300ms epochs? Hope to hear from you soon. Thank you and have a nice day.
> > > > 
> > > > With best wishes,
> > > > Faizal
> > > > 
> > > > Sent from Yahoo Mail on Android
> > > > 
> > > > On Fri, 28 Sep 2018 at 5:29, Arnaud Delorme
> > > > <arnodelorme at gmail.com> wrote:
> > > > Dear Faizal,
> > > > 
> > > > Let me look at it and get back to you.
> > > > Having 0 events is not a problem in itself but I will double check.
> > > > I am detecting a crash in Netstation with the 300 ms file and I want to check what is the issue. Maybe it is related.
> > > > Best wishes,
> > > > 
> > > > Arno
> > > > 
> > > > > On Sep 26, 2018, at 10:32 AM, Mohd Faizal Mohd Zulkifly <mfzl_mzly at yahoo.com> wrote:
> > > > > 
> > > > > Dear Arno,
> > > > > 
> > > > > Many thanks for a video which you have created to address my problem. I try to follow your steps and it works well (from minute 2:17 until 4:10 in your video). However, when I change the epoch time from -0.5ms: 0.5ms (in your video) to my epoch of interest (-0.1ms to 0.2ms), I encounter a similar problem which I expressed at the beginning. 
> > > > > 
> > > > > 1) Your example:
> > > > > When exporting the segmented file, you may notice the command window shows these lines:
> > > > > Success creating MFF file.
> > > > > Info.xml file created successfully
> > > > > Info1.xml file created successfully
> > > > > Signal binary file created successfully
> > > > > categories.xml file created successfully
> > > > > Success at creating the event file
> > > > > Exporting 3586 events...
> > > > > Note: exported event time 1 differ from original one 2018-05-29T11:08:00.176097+02:00 vs 2018-05-29T11:06:38.233110+02:00
> > > > > ....................
> > > > > ...................
> > > > > 
> > > > > 2) My example:
> > > > > But, when exporting the segmented file (using my epoch -0.1ms 0.2ms), you may notice the command lines as follows:
> > > > > Success creating MFF file.
> > > > > Info.xml file created successfully
> > > > > Info1.xml file created successfully
> > > > > Signal binary file created successfully
> > > > > categories.xml file created successfully
> > > > > Success at creating the event file
> > > > > Exporting 0 events...
> > > > > EEG checkset note for expert users: Noze direction now set to default +X in EEG.chanlocs and EEG.dipfit.
> > > > > ..............
> > > > > ...............  
> > > > > *If you see, it does no same anymore, no events were exported
> > > > > 
> > > > > If we look at data structure EEG.epoch, there are no values for latency. I have no ideas how this happened. What I have learnt from this is that, if there is no latency values, so no events were exported. And so, finally, we cannot review a segmented file in Netstation. I hope my explanation is clear in addressing my issue at this moment. Hope to hear your opinion on how changing the epoch time resulting in different output. Thank you and have a nice day.
> > > > > 
> > > > > With best wishes,
> > > > > Faizal
> > > > > 
> > > > > 
> > > > > On Thursday, 20 September 2018, 21:10, Arnaud Delorme <arnodelorme at gmail.com> wrote:
> > > > > 
> > > > > 
> > > > > Hi Faizal,
> > > > > 
> > > > > I have realized you have also contacted Philips who contacted me, so we have been working on your problem.
> > > > > They will send you some feedback soon I think,
> > > > > 
> > > > > Arno
> > > > > 
> > > > > > On Sep 20, 2018, at 8:59 AM, Mohd Faizal Mohd Zulkifly <mfzl_mzly at yahoo.com> wrote:
> > > > > > 
> > > > > > Dear Arno,
> > > > > > 
> > > > > > Many thanks for your reply. Please find here the links to the file which I am having the issue at this moment.
> > > > > > link1: ownCloud - A safe home for all your data
> > > > > > 
> > > > > > link2:  ownCloud - A safe home for all your data
> > > > > > 
> > > > > > Please follow these steps to reproduce my problem:
> > > > > > Using GUI,
> > > > > > File>>Load existing dataset (load this file)
> > > > > > File>>Export>>Export Philips.mff file (export this file)
> > > > > > Error message will appear as what i have explained,
> > > > > > 
> > > > > > or else, if it is exported successfully,
> > > > > > there will be no event '0 events exported' in the command window. 
> > > > > > 
> > > > > > Hope to hear from you soon. Thank you.
> > > > > > 
> > > > > > With best wishes,
> > > > > > Faizal
> > > > > > 
> > > > > > 
> > > > > > 
> > > > > > 
> > > > > > 
> > > > > > 
> > > > > > 
> > > > > > On Thursday, 20 September 2018, 17:01, Arnaud Delorme <arno at ucsd.edu> wrote:
> > > > > > 
> > > > > > 
> > > > > > Dear Faizal,
> > > > > > 
> > > > > > Would you mind to send me a file and all the exact step needed to reproduce the problem?
> > > > > > Best wishes,
> > > > > > 
> > > > > > Arno
> > > > > > 
> > > > > > > On Sep 20, 2018, at 3:21 AM, Mohd Faizal Mohd Zulkifly <mfzl_mzly at yahoo.com> wrote:
> > > > > > > 
> > > > > > > Dear all,
> > > > > > > 
> > > > > > > I am doing EEG data acquisition in Netstation and pre-processes the data in the EEGLAB. There is no issue to import .mff file to EEGLAB  but I have an issue to export my data back to Netstation. 
> > > > > > > 
> > > > > > > Issue 1: Unable to export .set file after doing all preprocessing and ICA. When I use GUI (file > export > export Phillips. mff file) to export this data I have got this message "Arguments to IMPORT must either and with ".*" or else specify a fully qualified class name: "com.egi.services.mff.api.MFFFactory" fails this test. (Error occurred in function mff_export() at line 44)"
> > > > > > > 
> > > > > > > Issue 2: Sometimes, I successfully exporting the same file using the same steps. But, the events in the exported files are missing "0 events are exported" in the command window. In this case, I am not able to do trial averaging in the Netstation due no events were exported 
> > > > > > > 
> > > > > > > In response to these issues, I have a few questions:
> > > > > > > 1) Does anybody is having the same problem in exporting your data and why this inconsistency happened?
> > > > > > > 2) Why no events were exported in the .mff file? 
> > > > > > > 
> > > > > > > Hope to hear your answer from you guys soon. Thank you.
> > > > > > > 
> > > > > > > With best wishes,
> > > > > > > Faizal
> > > > > > 
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> > 
> > > > > > 
> > > > > > 
> > > > > > 
> > > > > 
> > > > > 
> > > 
> > > 
> > > <Illustrative Explanation.pdf>
> > 
> > 
> > 
> 
> 


   
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