Count up the total number of scores whose values are positve and negative.
	If a greater number are negative, then sort in ascending order (e.g. for binding energy estimates)
	Otherwise, sort in descending order (e.g. for similarity values)

def get_sort_order(molecules):
    """
	Count up the total number of scores whose values are positve and negative.
	If a greater number are negative, then sort in ascending order (e.g. for binding energy estimates)
	Otherwise, sort in descending order (e.g. for similarity values)
	"""

    neg_count = 0
    pos_count = 0

    for index in range(len(molecules)):

        scoreList = molecules[index].GetProp('scores')
        for element in scoreList:
            if float(element) > 0:
                pos_count += 1
            elif float(element) < 0:
                neg_count += 1

    if pos_count > neg_count:
        sort_order = 'dsc'
    else:
        sort_order = 'asc'

    return sort_order