Error in Network Graph

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Chinenye Ezeh
Chinenye Ezeh 2018-6-29
评论： Chinenye Ezeh 2018-6-30
I tried to generate a graph after reading some values from a txt file. But I get the error message "In an assignment A(:) = B, the number of elements in A and B must be the same. " My code is shown below:
fid = fopen('URV.txt','rt');
A = textscan(fid, '%f%f', 'MultipleDelimsAsOne',true, 'Delimiter','[;', 'HeaderLines',2);
fclose(fid);
G=graph(A{1}, A{2});
I do not know what the actual issue is as I have looked at other codes from Mathworks which seem correct. I have tried a couple other formats but nothing seems to work. What am I doing wrong? Any help will be appreciated. Thanks
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Guillaume
Guillaume 2018-6-29
编辑：Guillaume 2018-6-29
It would be very helpful if you attached URV.txt to your question.
Also, can you post the whole text of the error message. Everything in red.
Chinenye Ezeh
Chinenye Ezeh 2018-6-29
Actually, I am working with very large datasets from different networks. So, I need a means to access them through text files.
In an assignment A(:) = B, the number of elements in A and B must be the same.
Error in graph>testadjmatrix (line 713) mOut(mOut == 0) = varargin{1};
Error in graph (line 281) [E,N,eps] = fromweightedadjmatrix(testadjmatrix(varargin{1},emptyValue),emptyValue);
Error in * (line 16) G=graph(A{1}, A{2});

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Steven Lord
Steven Lord 2018-6-29
From the documentation for the graph function, "G = graph(s,t) specifies graph edges (s,t) in node pairs. s and t can be numeric, character vectors, or cell arrays of character vectors with the same number of elements."
The key requirement that I suspect your data fails to satisfy is the "same number of elements" section. To confirm this and also to check the other requirements while we're at it, immediately before the line where you try to construct the graph run these lines of code and show us what they display.
s1 = size(A{1})
c1 = class(A{1})
isc1 = iscellstr(A{1})
s2 = size(A{2})
c2 = class(A{2})
isc2 = iscellstr(A{2})
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Chinenye Ezeh
Chinenye Ezeh 2018-6-30
编辑：Chinenye Ezeh 2018-6-30
which -all graph
E:\matlab\bin\torsche-master\torsche-master\scheduling\@graph\graph.m % graph constructor E:\matlab\toolbox\matlab\graphfun\@graph\graph.m % Shadowed graph constructor
Chinenye Ezeh
Chinenye Ezeh 2018-6-30
It works well now. I figured out there had been conflict of graph functions. I deleted the first folder to enable Matlab inbuilt graph function work properly. A big thanks to Steven Lord and every other person who helped out.

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