how to manipulate a cell

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Navid 2013-11-24

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回答： Navid 2013-11-25

Hi I have 1621x1 cell and each row is something like this: ;1800742;0,0000;0,0000;0,0000;;;;;;;1,4400;0,0000;0,0000;0,0000;0,0000;

";" is delimiter between different values.

I need to find the blank places in each row and fill it with a word like "None". As a beginner I need to know how can I access the blank places?is it possible to at first store the values in an array and then find the blank places?if yes how can I do that?

I would really appreciate any helps.

Thanks,Navid

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Azzi Abdelmalek 2013-11-24

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https://ww2.mathworks.cn/matlabcentral/answers/107363-how-to-manipulate-a-cell#answer_116190

在 MATLAB Online 中打开

A={1800742;0;0;0;[];[];1.4400;0;0;[];0}
A(cellfun('isempty',A))={'none'}

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Navid 2013-11-24

the numbers are floating point and the comma represent that,for example:(10,5 represent 10.5)

and the different numbers are separated by semicolon it could be string or double,i just need to fill the blank places(the places which there is nothing between two semicolons ) with "none".

Azzi Abdelmalek 2013-11-24

编辑：Azzi Abdelmalek 2013-11-24

在 MATLAB Online 中打开

Try this

clear
fid = fopen('sample.txt');
res={};
while ~feof(fid)
  res{end+1,1} =fgetl(fid);
end
fclose(fid);
A=strrep(res,',','.');
B=regexp(A,';','split');
for k=1:numel(B)
  C(k,:)=B{k};
end
C=cellfun(@str2double,C,'un',0);
idx=isnan(cell2mat(C));
C(idx)={'none'}