Problem: Create structure with a function using textfile and strtok(file,delimiter)

% the code: read the strings of input file "Datei" and process them with strtok() and create a block with the tokens as elements. the content of the file is 2 colums of strings resp. matrices seperated with " " and ";".

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function [A] = ignore(Datei)
fid = fopen(Datei,'r');
text = fscanf(fid,'%c');
fclose(fid);

R = text;
k = 1;

while (~isempty(R))
     [T,R] = strtok(R,{' ',';'})
     B{1,k} = T
     k = k + 1;
end
iscellstr(B)

A = struct(B{1},B{2},B{3},B{4},B{5},B{6})

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textfile content:

x [1,2,3]; y [9,4,5]; z [6,7,8]

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error:

Error using struct Invalid field name "

y"

Error in ignore (line 27) A = struct(B{1},B{2},B{3},B{4},B{5},B{6})

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The problem is that the function strtok() (which i have to use according to the task) somehow makes the string "y" a [1x3 char] element which I can't handle.

I am new to Matlab so maybe this is just a scrub mistake. Anywas I hope to get an answer quite soon.

THX!

Answer 1

[Siamak Arify]

Sry, i forgot to delete y=length(text). I tried a different solution with matrices and needed this variable.

I deleted this one since it does not bekong to this solution with blocks but its still not working and i get the same error :(

thx btw for trying!

EDIT: I corrected my question and now its easier to read, sry

EDIT2: Ok, I still dont know why i get [1x3 chars] in the while loop but i fixed the issue with direct acces to the cell elemts. Well thats not the solution I wanted but it works when u know ur file structure. Here is the fixed code:

function [A] = ignore(Datei)
fid = fopen(Datei,'r');
text = fscanf(fid,'%c');
fclose(fid);

R = text;
k = 1;

while (~isempty(R))
     [T,R] = strtok(R,{' ',';'});
     B{1,k} = T
     k = k + 1;
end

A = struct(B{1},B{2},B{3}(1,3),B{4},B{5}(1,3),B{6});

save ignore A