prtPreProcZeroMeanRows  Zero mean observations (rows)
 
    ZM = prtPreProcZeroMeanRows creates an object that removes the
    mean from each row (observation) of a data set.
 
    prtPreProcZeroMeanRows has no user settable properties.
 
    A prtPreProcZeroMeanRows object also inherits all properties and
    functions from the prtAction class.
 
    Example:
 
    dataSet = prtDataGenIris;              % Load a data set
    dataSet = dataSet.retainFeatures(1:3); % Use only the first 3 features
    zmr = prtPreProcZeroMeanRows;          % Create a
                                           %  prtPreProcZeroMeanRows object
    zmr = zmr.train(dataSet);              % Train
    dataSetNew = zmr.run(dataSet);         % Run
 
    % Plot
    subplot(2,1,1); plot(dataSet);
    subplot(2,1,2); plot(dataSetNew);