def setBins(self, bins):
        """Sets the bin centers (x values)

        :param bins: time bin centers
        :type bins: numpy.ndarray
        """
        self._bins = bins
        self._counts = np.zeros_like(self._bins)
        bar_width = bins[0]*1.5
        self.histo.setOpts(x=bins, height=self._counts, width=bar_width)
        self.setXlim((0, bins[-1]))