title: Specify output directory of solution file in python GEKKO or matlab APM
body: <p>I am solving an optimal control problem using the python GEKKO and/or APM Matlab interface(they are the same package for both languages). I can solve my problem successfully, but I cannot figure out how to specify the output location of the solution file. </p>
  
  <p>After loading my files and solving my problem using </p>
  
  <pre><code>% server
  s = 'http://byu.apmonitor.com';
  % application name
  a = 'test';
  % load model and data file
  apm_load(s,a,'test.apm')
  csv_load(s,a,'test.csv')
  output = apm(s,a,'solve');
  </code></pre>
  
  <p>a file called 'solution_test.csv' is created in the directory of the file i just ran. How can i change this output directory?</p>