How can I plot EDF data in matlab

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Hi I am new to MatLab and wanted to know how I can plot EDF data. I have stored the data into a variable using edfread, using the following code.

plotData = edfread('testdata.edf');

The edf data looks like the following

plotData = 
              ver: 0
        patientID: 'test                                                                            '
         recordID: 'test                                                                            '
        startdate: '23.06.16'
        starttime: '12.10.38'
            bytes: 9472
          records: 3
         duration: 1
               ns: 36
            label: {1x36 cell}
       transducer: {1x36 cell}
            units: {1x36 cell}
      physicalMin: [0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
      physicalMax: [1x36 double]
       digitalMin: [0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
       digitalMax: [1x36 double]
        prefilter: {1x36 cell}
          samples: [1x36 double]