Dear Mingrui,

I believe the error might be caused by file conversion from Excel to .txt then to .edge.
Now I use Sublime Text 2 to write the matrix and generate .edge directly, BrainNet ran smoothly.

I'm using Matlab R2012a and the whole error message was as follows:

Operands to the || and && operators must be convertible to logical scalar
values.

Error in BrainNet_Option>Initialization (line 521)
if
EC.edg.draw_threshold>max(abs(surf.net(:)))||EC.edg.draw_threshold
Error in BrainNet_Option>BrainNet_Option_OpeningFcn (line 79)
Initialization(handles);
Error in gui_mainfcn (line 221)
feval(gui_State.gui_OpeningFcn, gui_hFigure, [], guidata(gui_hFigure),
varargin{:});
Error in BrainNet_Option (line 52)
[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
Error in BrainNet>LoadFile_ClickedCallback (line 3812)
H=BrainNet_Option;
Error in gui_mainfcn (line 96)
feval(varargin{:});
Error in BrainNet (line 53)
gui_mainfcn(gui_State, varargin{:});
Error in
@(hObject,eventdata)BrainNet('LoadFile_ClickedCallback',hObject,eventdata,guidata(hObject))
Error while evaluating uipushtool ClickedCallback
Operands to the || and && operators must be convertible to logical scalar
values.
Error in BrainNet_Option>Initialization (line 521)
if
EC.edg.draw_threshold>max(abs(surf.net(:)))||EC.edg.draw_threshold
Error in BrainNet_Option>BrainNet_Option_OpeningFcn (line 79)
Initialization(handles);
Error in gui_mainfcn (line 221)
feval(gui_State.gui_OpeningFcn, gui_hFigure, [], guidata(gui_hFigure),
varargin{:});
Error in BrainNet_Option (line 52)
[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
Error in BrainNet>LoadFile_ClickedCallback (line 3812)
H=BrainNet_Option;
Error in gui_mainfcn (line 96)
feval(varargin{:});
Error in BrainNet (line 53)
gui_mainfcn(gui_State, varargin{:});
Error in
@(hObject,eventdata)BrainNet('LoadFile_ClickedCallback',hObject,eventdata,guidata(hObject))
Error while evaluating uipushtool ClickedCallback

Best,
Andy