Matlab Data and Files

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• Misc
  • SOFIs
    • Fill them out via http://go.geneseo.edu/sofi_survey
    • Useful to me in improving courses
• Questions?
• Loading and Saving Data to Files
  • Section 9.3
    • Expect: multiple ways to save data
    • Load: load “.mat” file to get back saved variables
      • load filename variable(s)
      • load( 'filename.mat' )
    • Save: save all variables or particular variable
      • save -append filename variable(s)
      • save( 'filename.mat' , 'varname1', 'varname2', ... )
    • who command to see what’s in a file
      • who -file filename
  • Examples
    

    >> x = 123;
    >> y = 'hello';
    >> who
    Your variables are:
    x  y  
    >> who -file database
    Your variables are:
    csContributions       mathContributions     
    institutions          physicsContributions  
    >> csContributions
    {Undefined function or variable 'csContributions'.} 
    >> load database
    >> csContributions
    csContributions = 
        'Alan Turing'         'Computability'          [1936]
        'Grace Hopper'        'COBOL'                  [1959]
        'John von Neumann'    'Stored-Program C...'    [1945]
    >> save newfile x y
    >> who -file newfile
    Your variables are:
    x  y  
    >> mathContributions
    mathContributions = 
        'Isaac Newton'         'Calculus'               [1666]
        'Gottfried Leibniz'    'Calculus'               [1675]
        'Kurt Goedel'          'Incompleteness'         [1931]
        'Alan Turing'          'Computability'          [1936]
        'John von Neumann'     'von Neumann Algebra'    [1930]

  • Lab 8
• Next
  • Strings
  • Read sections 7.1 and 7.2

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