Read two lines from a file and repeat for next lines

Hello everybody

i have a file part like this:

   1,   695,   400,     8,   519,  2721,  2426,  2034,  2545,  6082,  6081,  6080,  6079,  6083,  6084,  6085,
       6086,  6088,  6087,  6089,  6090
   2,   694,   117,   678,   730,  2720,  2143,  2704,  2756,  6094,  6093,  6092,  6091,  6095,  6096,  6097,
       6098,  6100,  6099,  6101,  6102
   3,   116,   679,   726,   724,  2142,  2705,  2752,  2750,  6106,  6105,  6104,  6103,  6107,  6108,  6109,
       6110,  6112,  6111,  6113,  6114
   4,   724,   722,   683,   116,  2750,  2748,  2709,  2142,  6117,  6116,  6115,  6103,  6118,  6119,  6120,
       6110,  6114,  6121,  6122,  6112
   5,   115,   728,   692,   682,  2141,  2754,  2718,  2708,  6126,  6125,  6124,  6123,  6127,  6128,  6129,
       6130,  6132,  6131,  6133,  6134
       

Now i would like to read the first two lines and add to a cell like:

       for b=(start_elements(i)+1):(end_elements(i)-1) 
             Element{i}(p,:)=strread(FFLINES{b}, '%f', 'delimiter', ',');
            p=p+1;
       end
       

In the end i will have a cell Element{1,1} with all the 21 elements but i cannot figure out how to do it.

Answer 1

[Ameer Hamza]

It is more efficient to read everything in a single call. I/O operations on disk can be a bottleneck, so that should be reduced as much as possible

str = fileread('data.txt');
data = textscan(str, '%f', 'Delimiter', ',');
data = reshape(data{1}, 21, []).'

data.txt is attached.

[bbah]

thank you a lot

[Ameer Hamza]

I am glad to be of help!