----------------------------------------------------------------------------- EEP 3.1 Max-Planck-Institute of Cognitive Neuroscience 1996-99 avraverage 3.18 (OSF1 V4.0 alpha) Wed Sep 15 13:30:26 1999 ----------------------------------------------------------------------------- avraverage <cfg> <output dir> [<output filename base>]
; Example configuration file for avraverage ; the input .avr filenames are built from the template ; by expandig "&t" with the condition code and "&s" with ; the subject code below [filename template] ./&s/a1rf/&s&t.avr ; subject codes to build the .avr filenames ("&s") [subjects] pi01 pi12 ; condition codes to build the .avr filenames ("&t") ; a grand average is computed for each condition here ; from all subject listed above [conditions] 1 2 [weighted] no ; each average is weighted with 1.0 ;sn ; to weight each input average with sqrt(Ntrials) ;cum ; accumulate the single trials from the input averages ; list of channels for output averages ; you can comment out this section to request the largest common ; subset of channels available ;[channels] ;F9, F7, F5, F3, FZ, F4, F6, F8, F10 ;EOGV, EOGH ; output average time range ; you can comment out this section to request the largest common ; time range available ; (values have to be separated by exact two dots, no whitespaces) ;[time range] ;-200..1200 ; ms ; For latency jitter compensation: An avrretrieve-like ASCII table ; is read (here: foo.tab); the [time range] window above is ; interpreted relative to the latency in the given column (here: tgmin) ; then, not relative to 0 in the .avr file. ; ; The correct line is found by matching subj, cond, chan of each input ; avr vector with the "subj", "cond", "chan" columns of the ASCII table, ; whichever are present. ;[time base] ;foo.tab tgmin
avraverage
gives you access tho the full dataset, allows selection
in all 4 dimensions and can derive grand averages from the selected
input averages.
The input filelist generation is designed for computing
one grand average per listed condition, each one from
all listed subjects. This complements the filename rules
introduced by the cntaverage
module.
See the more flexible avrprocess
module if these rules do not match your needs.
Former versions of avraverage
had options for generating
"SAS output".
While this functionality is still present, it is obsolete now and
replaced by avrretrieve
.
[conditions]
codes and the command line arguments as follows:
avraverage grand_av.cfg test run
would produce the result files:
./test/run.n numbers of trials in the input files ./test/runc1.avr one grand average for ./test/runc2.avr each listed condition ...