How to add values to an existing *.dat file?

Hello to all, I am sorry if this topic has been discussed earlier, but I could not find it... Can you please give me an idea how to add (record) value to an existing my_datta.dat file, created as csvwrite file. I would like to add values every time when I change the input datta, and not to overwrite the file. Thanks!

Answer 1

[Walter Roberson]

csvwrite() calls dlmwrite() with ',' as the delimiter. You can call dlmwrite() directly, in which case you could use

dlmwrite(filename, M, '-append')

[Silvia Sasheva]

Thanks! Regards!