[Eeglablist] Bugs in EEGLAB 4.42

[Bernie C. Till]

Hello, Everyone:


I'm running EEGLAB v4.42 under MatLab Version 7.0.0.14113 (R14), and I've
found a bug in plottopo().  The symptom is that one receives the error
message

Error using ==> text
Not enough input arguments.

from plottopo(), which then aborts execution.

The problem originates in line 692 of plottopo.m, where the offending call
is

h=text(xmin-NAME_OFFSET*xdiff,yht-NAME_OFFSETY*ydiff,[channames(c,:)]);

Interestingly, replacing the numerical expressions with constants makes the
error go away, so that

h=text(0,0,[channames(c,:)]);

at least allows the figure to be displayed, but then the same problem
resurfaces in the following locations:

line   call
818   h=text(signx, ymin,num2str(ymin,3));
822   h=text(signx, ymax,['+' num2str(ymax,3)]);
827   h=text(xmin,ytick,tick);
832   h=text(xmin+xdiff/2,ytick-0.5*g.ydir*ydiff,tick);
837   h=text(xmax,ytick,tick);

All of the variables are perfectly well defined, so I am at a loss... can
you suggest a way to fix this strangle little problem?

It seems to me that the problem occurs every time plottopo() is called, but
I can' be sure of that.  One way to reproduce the problem with certainty is
to follow the steps leading up to the invocation of pop_comperp() in section
1.7.2 of the tutorial.


Best Regards,
-- Bernie Till


P.S. -- Incidentally, there is another small bug -- easily fixed -- in
eegfilt.m at line 158.  Here, we find

if epochframes = 0,
  epochframes = frames;    % default
end

As soon as we replace this with

if epochframes == 0,
  epochframes = frames;    % default
end

eegfilt() works just fine.