MATLAB: I need to read a file and store the values, so I can call these values in a for loop.

arrrayread filestring

I have a file (names.txt) that is a list of file names. There is one file name per line. I need to read that file, so that each file name can be used in a for loop. I've tried to read the file as multiple strings with fscanf, but I get all the file names concatenated into one single string. How can I read the file into a single column array?

Best Answer

fid = fopen('your txt file') ;
S = textscan(fid,'%s','delimiter','\n') ;
S = S{1} ;
fclose(fid) ;
for i = 1:length(S)
    S{i}
end

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MATLAB: I have a following text file delimited with ‘tabs’, that contains both strings and decimal numbers. I want to read only numbers in the text file and plot a surface between [T2,DEPTH,respective values] as [X,Y,Z]

fid = fopen('your data in txt file') ;
S = textscan(fid,'%s','delimiter','\n') ;
fclose(fid) ;
S = S{1} ;
%%Get positions
idx1 = find(not(cellfun('isempty',strfind(S, 'T2')))); % T2 position 

idx2 = find(not(cellfun('isempty',strfind(S, 'DEPTH')))); % T2 position 
idx3 = idx2:length(S) ;
%%Get the required 
x = cell2mat(cellfun(@str2num,strsplit(S{idx1}),'un',0)) ;
depth = cell2mat(cellfun(@str2num,strsplit(S{idx2}),'un',0)) ;
data = cell2mat(cellfun(@str2num,S(idx3),'un',0)) ;
y = data(:,1) ;
data = data(:,2:end) ;

The above code reads your data and gives x,y,depth and respective responses. Now you can plot in the way you want.

MATLAB: Write multiple line of text into a text file

 fid = fopen('output.txt','w'); 
fprintf(fid, '%s\n',app.DCMtxt.Value{:}) ;
fclose(fid) ;

Best Answer

Related Solutions

MATLAB: I have a following text file delimited with ‘tabs’, that contains both strings and decimal numbers. I want to read only numbers in the text file and plot a surface between [T2,DEPTH,respective values] as [X,Y,Z]

MATLAB: Write multiple line of text into a text file

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