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<font face="Calibri">Dear subscribers,<br>
<br>
As of today, we have switched to a new implementation for the
'mtmconvol' and 'mtmfft' methods for frequency analysis. For a
while now we have been rewriting the low-level code in a different
format, one that is more flexible to adapt in the future and that
allows for the low-level algorithms to be downloaded in a separate
module: <i>specest</i>. The changes will be on our ftp-server by
tonight. <br>
<br>
The switch to the new implementation brings about several changes.
With respect to the changes are observable to the end-user, there
are several FAQs created at our wiki. <br>
<br>
For the end-user observable changes for 'mtmconvol', please have a
look <a
href="http://fieldtrip.fcdonders.nl/faq/what_are_the_differences_between_the_old_and_the_new_implementation_of_mtmconvol_in_ft_freqanalyis"><i>here</i></a>,
and for a bigger description with respect to your output.freq
please go <a
href="http://fieldtrip.fcdonders.nl/faq/why_does_my_output.freq_not_match_my_cfg.foi_when_using_mtmconvol_in_ft_freqanalyis"><i>here</i></a>.<br>
<br>
</font><font face="Calibri">For the end-user observable changes for
'mtmfft', please have a look <a
href="http://fieldtrip.fcdonders.nl/faq/what_are_the_differences_between_the_old_and_the_new_implementation_of_mtmfft_in_ft_freqanalyis"><i>here</i></a>.</font><br>
<font face="Calibri"><br>
Because of these changes, it is advisable to either use the new or
the old implementation for your entire analysis project. We
strongly advise against combining or comparing data that have in
part been produced by the new implementation and in part by the
old implementation, especially when using phase information. The
old implementation is still available by using 'mtmconvol_old' or
'mtmfft_old' as cfg.method. However, this code is deprecated and
is no longer being updated. One can call also call the function:
ft_freqanalysis_old, which is the old interface-function.<br>
<br>
If you are interested, you can track the progress of the <i>specest
</i>module by going <a
href="http://fieldtrip.fcdonders.nl/development/specest"><i>here</i></a>.
As soon as the other low-level functions are ready and
implemented, another e-mail will be sent to the mailing-list.<br>
<br>
If anything is unclear, or if there are any bugs that have slipped
through our fingers, please send an e-mail to the mailing-list
and/or report a bug in our <i><a
href="http://fieldtrip.fcdonders.nl/bugzilla">Bugzilla bug
tracking system</a></i>.<br>
<br>
Kind regards,<br>
<br>
Roemer van der Meij<br>
<br>
<br>
</font>
<div class="moz-signature">-- <br>
<font size="3"><font color="darkblue"><font face="calibri">Roemer
van der Meij MSc<br>
PhD student<br>
Donders Institute for Brain, Cognition and Behaviour<br>
Centre for Cognition<br>
P.O. Box 9104<br>
6500 HE Nijmegen<br>
The Netherlands<br>
Tel: +31(0)24 3655932<br>
E-mail: <a class="moz-txt-link-abbreviated" href="mailto:r.vandermeij@donders.ru.nl">r.vandermeij@donders.ru.nl</a><br>
</font></font></font></div>
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