def rangeFrameLabler(tickLocs, tickLabels, cadence):
    """
	Takes lists of tick positions and labels and drops the marginal text label where the gap between ticks is less than half the cadence value
	
	:param list tickLocs: List of current tick locations on the axis
	:param list tickLabels: List of tick labels
	:param float cadence: Gap between major tick positions
	:returns: List of tick labels
	:rtype: list 
	"""
    labels = []
    for i, tick in enumerate(tickLocs):
        if tick == tickLocs[0]:
            labels.append(tickLabels[i])
        elif tick == tickLocs[-1]:
            labels.append(tickLabels[i])
        elif (tick < tickLocs[0] + cadence / 2.0) & (tick < tickLocs[0] +
            cadence):
            labels.append('')
        elif (tick > tickLocs[-1] - cadence / 2.0) & (tick > tickLocs[-1] -
            cadence):
            labels.append('')
        else:
            labels.append(tickLabels[i])
    return labels
