Development Environment

Using the diary Command to Export Data

To export small numeric arrays or cell arrays, you can use the diary command. diary creates a verbatim copy of your MATLAB session in a disk file (excluding graphics).

For example, if you have the array A in your workspace,

• A = [ 1 2 3 4; 5 6 7 8 ];
  

execute these commands at the MATLAB prompt to export this array using diary:

1. Turn on the diary function. You can optionally name the output file diary creates.

• diary my_data.out
  

2. Display the contents of the array you want to export. This example displays the array A. You could also display a cell array or other MATLAB data type.

• A =
      1     2     3     4
      5     6     7     8
  

3. Turn off the diary function.

• diary off
  

1. diary creates the file my_data.out and records all the commands executed in the MATLAB session until it is turned off.

   • A =
     
          1     2     3     4
          5     6     7     8
     
     diary off
     

4. Open the diary file my_data.out in a text editor and remove all the extraneous text.

Exporting Delimited ASCII Data Files

Importing Binary Data