I have the list contains following data
cm_id pr_id pr_val
625456, 123456 90.0
625456, 123457 89.0
625457, 123356, 98.0
625457, 123457, 9.0
我将此列表传递给功能prod_ret（input_list）
how can i map input_list.map(position1 i.e suppose for 625456 ).fiilter( pr_id == '123456 ' && pr_id == '123457') if matches then get the the rdd,
所以它看起来像
625456,'prod_ret',90.0,89.0 ==> prod_ret is fix string
625457,'prod_ret',98.0,9.0
And i want to apply the above RDD to **a/(a+b)*100** this formula for 625456 a=90.0 b=89.0 and for 625457 a =98.0 b=9.0
和最终的RDD将是我需要保存就像，
625456,prod_ret,198.88
625457,prod_ret,109.18
为了得到这个我需要编写像
这样的功能def prod_ret(input_list):
## for position1.map filter the pr_id and pr_value for this i tried following
filter_list = input_list.map(lambda x: (x.split(",")[0],x[1],float(x[2])).filter(lambda p: p[1] == '123456' && p[1] == '123457')#is this possible
## then get output RDD like 625456,'prod_ret',pr_id1.value,pr_id2.value i.e 90.0,89.0 so the rddlist will look like 625456,'prod_ret',90.0,89.0 for cm_id 625456
## then apply the formula a/(a+b)*100 on this RDD where a=90.0,b=89.0
## save the rdd with output 625456,prod_ret,198.88 for cm_id 625456
## save the rdd with output 625457,prod_ret,109.18 for cm_id