Save cell with numbers to text file - matlab

Question

I have cell arrays A and B with different lengths and numbers.
A={1:0.5:5;1:0.5:2};
B={1:0.5:6;1:0.5:9};
C= [A;B];
I want to combine these cell arrays into a cell array C, which would then look like this:
C =
4×1 cell array
{1×9 double}
{1×3 double}
{1×11 double}
{1×17 double}
Then, I want to save this into a text file, that should look like this:
1.0000 1.5000 2.0000 2.5000 3.0000 3.5000 4.0000 4.5000 5.0000
1.0000 1.5000 2.0000
1.0000 1.5000 2.0000 2.5000 3.0000 3.5000 4.0000 4.5000 5.0000 5.5000 6.0000
1.0000 1.5000 2.0000 2.5000 3.0000 3.5000 4.0000 4.5000 5.0000 5.5000 6.0000 6.5000 7.0000 7.5000 8.0000 8.5000 9.0000
So far, I have only found code for text or same size arrays. This is my attempt, which doesn't work:
fid = open('filename.txt', 'wt');
fprintf(fid, '%f',C{:})
close(fid)

Answer 1

I believe the problem might be in the format you're specifying for the fprintf, as I believe using only '%f' will print one number on each row.
One way to do this would then be:
fid = fopen('filename.txt', 'wt');
for i = 1:length(C)
fmt = repmat('%f ',size(C{i})); % this only adds one whitespace in between numbers
fmt = [fmt,'\n']; % remember to add a new line
fprintf(fid,fmt,C{i});
end
fclose(fid);