Writing an array to a file

I have a 2d array of unknown size. I wish to write this into a file. After doing so i have similar arrays which have to be appended to the same file. This is one part. Other part is that I have to read the same file one array at a time. I don't know the size so the arrays have to separated. I wish to get the code for the same. The array contains only numeric data. I don't know what numbers are present in the file. Just there is an integer 2d array which has to be written to a file by a function separating more arrays as i store them in the file and another function which can read the same file one array at a time.

Can anyone help? Thanks

Answer 1

[Paul]

I would suggest saving each array inside an overall structure and then saving it.

for example

x=[1,2,3,4,5,6,7,8,9];

Y=[1,2];

Arrays.Data=x ;

Arrays.Data(1,2)=Y;

[Ravi Teja]

Can u provide me with a function and code for the same?

Answer 2

[Image Analyst]

You can save the various arrays to a mat file with save(). You can recall them separately also. Pretty easy - just look up save() in the help.

[Ravi Teja]

function A= write(M) edit text.txt; save('test.txt','M','-append');

This is what I have written but it's giving me an error

Unable to write file test.txt: No such file or directory.

Error in ==> write at 3 save('test.txt','M','-append');

M is a two d array.

How do i solve this?