saveNEVSpikes

  saveNEVSpikes

  Allows the user to save a modified version of the spike waveforms into a 
  NEV file. This can be very useful for those who want to save MATLAB
  sorted or rethresholded NEV data back into the NEV file. It also re-saves
  the other data in the original NEV file into the new NEV. A

  Use saveNEVSpikes(spikeStruct, newFileName)

    spikeStruct: The structure containing the spike data needed to be
                 saved. The structure format must match the one that 
                 openNEV outputs.
                 spikeStruct.TimeStamp: contains all the timestamps
                 spikeStruct.Electrode: contains all the electrode #s
                 spikeStruct.Unit: contains all the sorted unit #s
                 spikeStruct.Waveform: Spike waveforms, containing 48 data
                                       points

    newFileName: The file name of the new NEV file.
                 DEFAULT: User will be prmpted for a file name.

    Example 1:
    saveNEVSpikes(spikeStruct, 'sortedNEV';

    In the example above, the user will be prompted to select a NEV file.
    The data stored in spikeStruct will be saved into sortedNEV alongside 
    the data in the user-selected NEV file. The new NEV will be saved as
    sortedNEV.nev

    Kian Torab
    ktorab@blackrockmicro.com
    Blackrock Microsystems
    Version 1.2.1.0

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  Version History

  1.0.0.0: Initial Release.

  1.2.0.0:
    - Fixed a bug where the data saved incorrectly under the Windows OS.
    - Sped up the processing significantly.

  1.2.1.0
    - Fixed a bug introduced in 1.2.0.0.

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  Validating the input argument