uigetfolder

 folder = UIGETFOLDER(title,initia_path) sets up standard Windows browse for folder dialog box.

 ARGUMENTS
  title         ...  title string (OPTIONAL)
  initial_path  ...  initial path (OPTIONAL, defaults to PWD)
 
 RETURNS
  folder        ...  selected folder (empty string if dialog cancelled)
  
 Examples:    folder = uigetfolder                          - default title and initial path
               folder = uigetfolder('Select results folder') - default initial path
               folder = uigetfolder([], 'C:\Program Files')  - default title

 See also UIGETFILE, UIPUTFILE