[Eeglabnews] EEGLAB version 4.2 is now available

[Arnaud Delorme]

  EEGLAB version 4.2 is now available from 
http://www.sccn.ucsd.edu/eeglab/
(upgrate recommended because of major improvements and bug fixes)

We have made the following modifications since the 4.1 release

*4.2 - August 6, 2003*
* pop_saveset(): by default, now saves an EEG dataset in a single file 
(EEG.data saved
  in single-precision). Update your local eeg_options() file if necessary;
  Use eeg_option (or menu File > Maximize memory) to save EEG data as 
single floats
  in a separate .fdt file (as in previous EEGLAB versions).
* pop_editeventvals(): completely remade and added urevents. Urevents 
are all
  the original events imported along with the (often) continuous data. 
Retaining 'urevents'
  allows users to categorize events by their preceding event context, 
even after
  data rejection. Currently, using urevent info requires a user-written 
command line
  script operating on the EEG structure. (Note: 'ur' is German for 
'original'.)
  Also, pop window now allows the user to either insert (<-) or append 
(->) events.
* eegplot(): window selection zoom now works as expected; fixed slight 
inacuracy in scale.
  Now plots events as colored vertical lines (press "Event types" button 
to pop-up legend
  window). Also, speeded up this function. Note: still faster display 
available from
  commandline using 'submean','off'.
* dipplot(): better co-registration of the template anatomical MRI and 
the sphere/elipsoid that
  best fits electrode positions. New option to vizualize the MRI slice 
at which dipoles
  are located ("Tight view" button).
* erpimage(): if sorting trials by phase ('phasesort'), now uses 
circular (wrap-around) smoothing
  to return the same number of trials as input (e.g., if smoothing>1, 
decimate=1).
* main eeglab() window: reorganized the data import menu.
* timtopo(): fixed Matlab 5.3 compatibility problem.
* pop_timef(), pop_crossf(): fixed 'tlimit' parameter problem.
* pop_envtopo(): added 'xactscale' option to scale component scalp map 
to microvolt.
* pop_spectopo(): debuging filtering for continuous data with boundaries 
thanks to Johannes Sarnthein.
* pop_plottopo(), pop_plotdata(): allowing to plot an unlimited number 
of single trials.
* pop_selectcomps(): now allows user to plot a component subset.
* pop_comperp(): reprogrammed this "Compare ERPs" function to add more 
options.
* pop_read_erpss(): corrected a one-time point inaccuracy for events.
* read_erpss(): now reads compressed ERPSS raw data files.
* load_cnt(), pop_loadcnt(): reprogrammed using a different base 
function for loadcnt() and now
  allow to import 32-bit Neuroscan data files.
* pop_reref(), reref(): undoing average reference was not accurate. 
Completelly reprogrammed
  the function. now can re-reference data to several channels (e.g., to 
linked mastoids).
* pop_eegthresh(): fixed component index error.
* pop_resample(): fixed slight inaccuracy in frequency returned for 
non-integer frequencies.
-- 

* Arnaud Delorme <http://www.sccn.ucsd.edu/%7Earno>, Ph.D.* , SCCN, 
UCSD, San Diego, USA

*SCCN main page:* www.sccn.ucsd.edu <http://www.sccn.ucsd.edu/>
*EEGLAB main page:* www.sccn.ucsd.edu/eeglab/ 
<http://www.sccn.ucsd.edu/eeglab>
*EEGLAB documentation:* www.sccn.ucsd.edu/eeglab/eeglabdocs.html 
<http://www.sccn.ucsd.edu/eeglab/eeglabdocs.html>
*EEGLAB FAQ page:* www.sccn.ucsd.edu/eeglab/eeglabfaq.html 
<http://www.sccn.ucsd.edu/eeglab/eeglabfaq.html>
*EEGLAB mailing lists:* www.sccn.ucsd.edu/eeglab/eeglabmail.html 
<http://www.sccn.ucsd.edu/eeglab/eeglabmail.html>

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