preim.m

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function preim( varargin )
if ~ishold
    figure;
end
for i=1:nargin
    sig = varargin{i};
    try
        % Try to generate a time axis if signal_interface
        t = genTimeAxisSig(sig);
        labelx = 'Time [s]';
    catch e
        % Otherwise just plot, both signal_interface or vector
        t = 1:length(sig);
        labelx = 'Time [samples]';
    end
    hold on;
    subplot(1,2,1);
    plot(t, real(sig(:,:)));
    title('Real part');
    xlabel(labelx);
    hold on;
    subplot(1,2,2);
    plot(t, imag(sig(:,:)));
    title('Imaginary part');
    xlabel(labelx);
    hold off;
end
end