MATLAB: How to read a file in using fopen correctly

filefopenfreadtext file

I am trying to read in spectroscopic data in using fopen and place the data into the y array. The file dimensions are 69 * 22533. What am I doing incorrectly?
x = 1:5; %5
y = zeros(69,22533);
fileID = fopen('Pandora166s1_LabGSFC_20200115_L0_subset (1).txt','w');
fprintf(fileID,'%d %4.4f\n',y);
fclose(fileID);

Best Answer

I did not know a consistent number of characters was required for reading in a file. What would be the best way to to import this to get cell seperated values? I am trying to isolate a range of cloumns for data analaysis.
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