title: Create a vector of the workspace variables name
body: <p>Related with a question I asked before <a href="https://stackoverflow.com/questions/4612170/matlab-automatic-detection-of-relations-between-workspace-variables-through-func">MATLAB: Automatic detection of relations between workspace variables through functions</a>.
  Does any knows how can I get a vector with conteins the variable names of the workspace variables?
  Thank you.</p>