fprintf for 3D matrix

matrix_2D= 32 x 7 % double
fprintf(fid, '%*s\n', 15, '===== Starts with header=');
fprintf(fid, '\n');
fprintf(fid,'%*s %*s %*s %*s %*s %*s %*s\n',1,'PRN',1,'Radial RMS(cm)', 1, 'Along-Track RMS(cm)',1,'Cross-Track RMS(cm)',1,'Radial STD(cm)',1,'Along-Track STD(cm)',1,'Cross-Track STD(cm)');
fprintf(fid,'%02d        %.3f              %.3f            %.3f            %.3f             %.3f             %.3f\n', matrix_2D.');

I use the above codes for printing matrix_2D in a text file without any problem. Now I have 3D matrix as follows:

matrix_3D=  286 x 5 x 32 %double

I need to print this "matrix_3D" in a text file with the same row, column and slices order. I tried the below codes but the row, column and slices order cannot be kept.

fprintf(fid, '%*s\n', 15, '===== Starts with header=');
fprintf(fid, '\n');
fprintf(fid,'%*s %*s %*s %*s %*s\n',1,'Second',1,'PRN',1,'Radial (cm)', 1, 'Along-Track (cm)',1,'Cross-Track (cm)');
fprintf(fid,'%d    %02d    %.3f              %.3f                         %.3f\n', matrix_3D); 

How I can print matrix_3D in a text file that keeping the same order of matrix_3D (286 x 5 x 32)? My matlab version is 2019a.

Answer 1

[KSSV]

A = rand(3,3,3) ; 

C = permute(A,[1 3 2]);
C = reshape(C,[],size(A,2),1) ;

fid = fopen('test.txt','w') ;
fmt = [repmat('%f ',1,3),'\n'] ;

fprintf(fid,fmt,C') ;
fclose(fid)