ploting, artifacts, planar saving options, Hilbert, last mail

Teresa Montez t.montez at VUMC.NL
Tue Feb 1 17:05:45 CET 2005


Dear experts,

I have some questions:


1) MULTIPLOT

Is it possible to use multiplotER for only one dataset of on-going activity?


I tried with cfg.yparam = ┬┤datatest┬┤


%%%%%%%%%%%%
CODE
%%%%%%%%%%%%

cfgpre = [];

cfgpre.dataset = 'C:\Data\A002-EC_20021016_02.ds'
cfgpre.trl= [1 150000 0]
cfgpre.channel={'MEG' 'HEOG' 'VEOG' 'ECG'}

datatest = preprocessing(cfgpre)


cfgpre.yparam = 'datatest'          
% field to be plotted on y-axis (default = 'avg')
multiplotER(cfgpre,datatest)


%%%%%%%%%%%
ERROR
%%%%%%%%%%%

??? Reference to non-existent field 'avg'.

Error in ==> C:\Matlab\FieldTrip\fieldtrip-0.9.4\multiplotER.m
On line 86  ==>     P(:,:,k) = eval(['dTmp.',cfg.yparam]);                

%%%%%%

Then I tried: 

%%%%%%%
CODE
%%%%%%%

cfgpre.trl= [[1:2]', [150*ones(1,2)]', [zeros(1,2)]']
avg = timelockanalysis(cfgpre,datatest)
cfgpre.yparam = 'avg'

%%%%%
ERROR
%%%%%

averaging trial 1 of 1
??? Out of memory. Type HELP MEMORY for your options.

Error in ==> C:\Matlab\FieldTrip\fieldtrip-0.9.4\timelockanalysis.m
On line 402  ==>       dat = data.trial{i}(chansel,begsampl:endsampl);

%%%%%%
Do not know if it is just a memory problem - should not be since I choose small trials (the same to get it as average) - or if it still would not work with more memory.

Also tried with only 'MEG' channels, but same problem.

__________________________________________


2) ARTIFACT REJECTION

I read the mail about artifact_eog.m, I am interested in the code that was not downloaded if that is possible. 

And how to use the GUI artifact_viewer.m?

%%%%%
CODE
%%%%%

cfgpre.rejecteog = 'yes';

cfgpre.artfctdef.eog.sgn = 'VEOG';
cfgpre.artfctdef.eog.pssbnd = [5 15];
cfgpre.artfctdef.eog.fltord = 4;
cfgpre.artfctdef.eog.padding= 0.2;
cfgpre.artfctdef.eog.pretim = 0.1;
cfgpre.artfctdef.eog.psttim = 0.1;

artifact_viewer (cfgpre, cfgpre.artfctdef, cfgpre.rejecteog, datatest, artfctchn,flag)

%%%%%%
ERROR
%%%%%%

??? Undefined function or variable 'artfctchn'.

%%%%%

Also "z_tdata" = data set and what is "flag"?


__________________________________________

3) PLANAR PLOT

Is it possible to save a data set after aplying the megplanar.m in the CTF ".ds" format to open it with the DataEditor?

__________________________________________

4) HILBERT TRANSFORM

Is it possible to compute the Hilbert transform in order to make a phase synchronization analysis of the data?

__________________________________________

5) /home/common

Is there an external path?

__________________________________________


If you are still with me after all these questions, thanks in advance for your patience.


Best regards,
Teresa
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