How to import data from a txt file that has 256 arrays and 128 data points per array into a 128x256 matrix?

I have data in a txt file that I would like to import into Matlab for further analysis.

The file has val(:,:,1), val(:,:,2), and so on all the way to val(:,:.256) and each array contains 128 data points.

I want to import these data so that it’s in a 128x256 (column x row) matrix.

The first line of all the arrays contain a scientific notation that must be multiplied by the following cells in that array.

For example, the frst line of val(:,:,256) is 1.0e-08 * followed by 128 data points.

I tried using the load command and it outputs an error message.

I also tried using importdata, which isn’t working either.

What can I do to import this data into a 128x256 matrix? (Please see attached for the txt file).

[C B]

val(:,:,1) =[...
...
   1.0e0 *...
...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
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   0.0000 + 0.0000i...
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   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
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   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
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   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i]...
   
   val(:,:,2) =[...
...
   1.0e0 *...
...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
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   0.0000 + 0.0000i...
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   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
   0.0000 + 0.0000i...
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Answer 1

[KSSV]

filename = 'SeqLoop.data.kSpaceOS.txt' ; 

fid = fopen(filename,'r') ;
S = textscan(fid,'%s','delimiter','\n') ;
fclose(fid) ; 
S = S{1} ; 
S = str2double(S) ; 
idx = isnan(S) ; 
S = S(~idx) ; 
S = reshape(S,128,[]) ; 

[João Paulo Castro Zerba]

Hello,

I think instead:

S = S(~idx) ;

you should use:

S = S(~isnan(S)) ;

Right?

About collecting the scientific notation as a multiplier factor, is there a clever way?

Thanks KSSV.

[KSSV]

Yes you are right...I forgot to add that line. Now edited the answer.

[parslee]

The first line of all the arrays contain a scientific notation that must be multiplied by the following cells in that array.

How can I implement this in the coding?