<div>Thank you Christian.</div> <div>I can use meg-pd toolbox now. However, it seems all the functions in FieldTrip are for evoked data while my raw data is continuous data. </div> <div> </div> <div>I tried your suggestion. read_head works but read_data doesn't work. I don't know this error just due to memory or continuous data format. I remember previous discussion (<SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: ËÎÌć; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">2-feb-2006</SPAN>) in this emaillist mentioned that read_data couldn't deal with continuous data. The error shows as below:</div> <div><BR>??? Out of memory. Type HELP MEMORY for your options.</div> <div>Error in ==> F:\MATLAB6p5\toolbox\fieldtrip-20070213\private\read_data.m<BR>On line 529 ==>
dat(:,((i-begepoch)*hdr.nSamples+1):((i-begepoch+1)*hdr.nSamples)) = buf(chanindx,:);</div> <div>Error in ==> F:\MATLAB6p5\toolbox\fieldtrip-20070213\read_fcdc_data.m<BR>On line 49 ==> [dat] = read_data(varargin{:});</div> <div> </div> <div>Even the read_data has been improved as continuous data acceptable, I still wonder the following data processing. Is there tool to convert continuous data to "epoch mode" data?</div> <div> </div> <div>Thanks.</div> <div> </div> <div>Best,</div> <div>Eve</div> <div><BR><B><I>Christian Hesse <c.hesse@FCDONDERS.RU.NL></I></B> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Hi Eve, <DIV><BR class=khtml-block-placeholder></DIV> <DIV>FieldTrip handles (pretty much) all function calls to the meg-pd toolbox for you (in particular which are the appropriate input arguments to use) so you don't have to deal with these issues
yourself.</DIV> <DIV><BR class=khtml-block-placeholder></DIV> <DIV>See if you can extract the header information and some data from your .fif file using?lt;/DIV> <DIV><BR class=khtml-block-placeholder></DIV> <DIV>filename = "fullpath/name.fif"</DIV> <DIV>hdr = read_fcdc_header(filename);</DIV> <DIV>% hdr should be a structure</DIV> <DIV>dat = read_fcdc_data(filename);</DIV> <DIV>% dat should be a nchan x nsamp matrix</DIV> <DIV><BR class=khtml-block-placeholder></DIV> <DIV>see what you get.</DIV> <DIV><BR class=khtml-block-placeholder></DIV> <DIV>Regards,</DIV> <DIV>Christian</DIV> <DIV><BR class=khtml-block-placeholder></DIV> <DIV><BR class=khtml-block-placeholder></DIV> <DIV><BR> <DIV> <DIV>On 17 Feb 2007, at 21:03, alotof eve wrote:</DIV><BR class=Apple-interchange-newline> <BLOCKQUOTE type="cite"> <DIV>Hi, experts,</DIV> <DIV>?lt;/DIV> <DIV> Maybe I misunderstood the command. My MEG data is from NeuroMag 306 channels. Does that mean I
should use "Neuromag-306" as <FONT face=NimbusSanL-Bold>argument? Thanks for any suggestion.</FONT></DIV> <DIV><FONT face=NimbusSanL-Bold></FONT>?lt;/DIV> <DIV><FONT face=NimbusSanL-Bold>Best,</FONT></DIV> <DIV><FONT face=NimbusSanL-Bold>Eve</FONT></DIV><FONT face=NimbusSanL-Bold></FONT> <DIV><FONT face=NimbusSanL-Bold></FONT><BR><BR><B><I>alotof eve <<A href="mailto:alotof_xd@yahoo.com">alotof_xd@yahoo.com</A>></I></B> wrote:</DIV> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Hi Christian,<BR><BR> ?Yes it works. Thank you so much.<BR> ?But now I met a new problem. I got only a whole .fif data. When I tried the command "MEGMODEL", it said any argument can be left out. However, the error showed up again: <BR>>> MEGMODEL<BR>??? Could not load the coil files<BR><BR>Error in ==> F:\MATLAB6p5\bin\win32\megmodel.dll<BR> ?<BR>I couldn't find any .fif file like Neuromag-122 or coilfile.fif. How do
you settle it?<BR>Thanks.<BR><BR>Best,<BR>Eve<BR><BR><B><I>Christian Hesse <<A href="mailto:c.hesse@FCDONDERS.RU.NL">c.hesse@FCDONDERS.RU.NL</A>></I></B> wrote: <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(16,16,255) 2px solid">Hi Eve, <DIV><BR class=khtml-block-placeholder></DIV> <DIV>you should be able to use the meg-pd toolbox (also from FieldTrip) in Matlab under Windows. I got the toolbox to work in Matlab7 under WindowsXP as follows:</DIV> <DIV style="MIN-HEIGHT: 14px; MARGIN: 0px; FONT: 12px Helvetica; font-size-adjust: none; font-stretch: normal"><BR></DIV> <DIV style="MARGIN: 0px">? extract the meg-pd-1.2-10.mswin.zip file to somewhere</DIV> <DIV style="MARGIN: 0px">-?then copy (or move) the meg_pd_1.2 directory wherever you want</DIV> <DIV style="MARGIN: 0px">-?in the README file in the meg-pd-1.2-10.mswin directory it specifies that you need to copy the DLL file
"meg-pd-1.2-10.mswin\lib\i686-pc-cygwin\libmagnet_pd_1.2.dll" into the bin directory of Matlab on your system, in my case this was the directory "MATLAB71\bin\win32"</DIV> <DIV style="MARGIN: 0px">-?start up Matlab, add the fieldtrip and meg_pd_1.2 directories to your path and try to read your .fif file</DIV> <DIV style="MIN-HEIGHT: 14px; MARGIN: 0px; FONT: 12px Helvetica; font-size-adjust: none; font-stretch: normal"><BR></DIV> <DIV style="MARGIN: 0px">Let me know if this works on your Windows system</DIV> <DIV><BR class=khtml-block-placeholder></DIV> <DIV>Regards,</DIV> <DIV>Christian</DIV> <DIV><BR class=khtml-block-placeholder></DIV> <DIV><BR class=khtml-block-placeholder></DIV> <DIV> <DIV> <DIV>On 15 Feb 2007, at 17:32, alotof eve wrote:</DIV><BR class=Apple-interchange-newline> <BLOCKQUOTE type="cite"> <DIV>Hi, experts,</DIV> <DIV>?lt;/DIV> <DIV> I am a new user of fieldtrip. I try to use meg-pd package to import NeuroMag data but it seems
there is something wrong with the environment. <BR> ?The error?showed as:<BR> ?Unable to load mex file: F:\MATLAB6p5\toolbox\fieldtrip-20070213\meg_pd_1.2\loadfif.dll.<BR>The specified module could not be found. </DIV> <DIV> </DIV> <DIV> ?The true is the .dll is in the same path as .m and the path has been add the Matlab.</DIV> <DIV> ?I use Latlab 6.5 under WindowXP. I don't know if it affects. I saw the "lib" in the same meg-pd package included a .dll for pc-cygwin. I wonder if I have to use Matlab under Linux/Unix environment. Or if any other limits.</DIV> <DIV>?lt;/DIV> <DIV> Please help me. Thanks.</DIV> <DIV>?lt;/DIV> <DIV>Best,</DIV> <DIV>Eve</DIV> <DIV><BR class=khtml-block-placeholder></DIV> <HR SIZE=1> TV dinner still cooling?<BR><A href="http://us.rd.yahoo.com/evt=49979/*http://tv.yahoo.com/">Check out "Tonight's Picks"</A> on Yahoo! TV.</DIV></DIV></DIV></BLOCKQUOTE></DIV><BR> <DIV><SPAN class=Apple-style-span
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