def process_user_input(dict_):
    """This functions processes the input parameters that need to be
    specified by the user"""
    nbins = dict_['ESTIMATION']['nbins']
    logit = dict_['ESTIMATION']['logit']
    bandwidth = dict_['ESTIMATION']['bandwidth']
    gridsize = dict_['ESTIMATION']['gridsize']
    a = dict_['ESTIMATION']['ps_range'][0]
    b = dict_['ESTIMATION']['ps_range'][1]
    return nbins, logit, bandwidth, gridsize, a, b
