Exporting data from MATLAB

Many of the functions we have used to import data into MATLAB have a corresponding function that allows us to export data. At the beginning of the chapter, we learned to save our data for later use with the save command:

>> save filename.mat

Note

Remember, this command saves all contents of the workspace in a compressed file with a .mat extension, called a MAT-file.

The dlmread() function allows us to handle text files with a specified delimiter. We can use this function to write a matrix to an ASCII-delimited file. To test the function, we start from a matrix of random numbers:

>> MyMatrix = rand(5)
MyMatrix =
    0.7577    0.7060    0.8235    0.4387    0.4898
    0.7431    0.0318    0.6948    0.3816    0.4456
    0.3922    0.2769    0.3171    0.7655    0.6463
    0.6555    0.0462    0.9502    0.7952    0.7094
    0.1712    0.0971    0.0344    0.1869    0.7547

Now simply write a matrix named MyMatrix to a file named MyMatrix.txt using the default delimiter...