def values_to_text(data):
    """ Translate the values of a list of variables to text representation
    Currently only support real data
    """
    num_vari = len(data)
    num_points = len(data[0].values)
    lines = []
    for i in range(num_points):
        lines.append("%s\t%e" %(i,data[0].values[i]))
        for j in range(1,num_vari):
            lines.append(" \t%e" %(data[j].values[i]))
    return lines