Error using fscanf ???
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Khoirunnisya Zawawi
on 16 Oct 2016
Commented: Bagus Adhi
on 22 Jun 2021
Hi to all. Please help. I'm new in Matlab, so i don't really understnad why i get this error.
"Error using fscanf
Invalid file identifier. Use fopen to generate a valid file identifier. Error in gaspp (line 22)
num = fscanf(fid, '%d', [1,1]); % Number of nodes"
i found a code related to my project so i tried it and it was running. but when i finish input then it shows an error.
this is my code
disp('==============================');
disp('Masukkan Parameter Program');
disp('==============================');
f_input = input('>> Nama Input File : ','s'); % Contains network info
startNode = input('>> Node sumber : '); % Source node
endNode = input('>> Node tujuan : '); % Destination node
nind = input('>> Ukuran populasi : '); % Population size
Pc = input('>> Probabilitas crossover : '); % Crossover probability
Pm = input('>> Probabilitas mutasi : '); % Mutation probability
ngener = input('>> Batas generasi : '); % Generations limit
% -------------------------------------------------------------
% NETWORK BUILDING
% -------------------------------------------------------------
fid = fopen(f_input,'r');
*num = fscanf(fid, '%d', [1,1]);% Number of nodes*
edges = fscanf(fid, '%d', [1,1]);% Number of edges
source_node = zeros(1,edges);% Set of source nodes
dest_node = zeros(1,edges);% Set of end nodes
link_cost = zeros(1,edges);% Set of link cost
unlink_cost = 1000;% Set of unlink cost
thanks before
0 Comments
Accepted Answer
Walter Roberson
on 16 Oct 2016
When you are prompted for Nama Input, you need to type in the name of an existing file.
7 Comments
Bagus Adhi
on 22 Jun 2021
I'm sorry maybe its to late for asking about this question now. I want to ask is "is there any code that should be changed to clear the error", cause i cannot find the answer by reading all the aswer between Ms. Khoirunnisya and Mr. Walter. I really need your help, this answer will help me for my Presentation. Thank You
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