SAS中文论坛

标题: sas 按月份算均值 [打印本页]

作者: shiyiming 时间: 2011-8-2 17:09
标题: sas 按月份算均值
Data A                            data B

"Clsdt" "Nrrmtdt"                "Clsdt"    "Nrrmtdt"

"2000-01-01"  ".185600"             “2000-01”  “.1895400”

"2000-01-02"  ".185600"             “2000-02”  “.1980000”

"2000-01-03"  ".185600"             ……

"2000-01-04"  ".185600"             “2011-07”  “.323400”

"2000-01-05"  ".185600"

"2000-01-06"  ".185600"

"2000-01-07"  ".185600"

"2000-01-08"  ".197600"

"2000-01-09"  ".197600"

"2000-01-10"  ".197600"

…..

“2011-07-31” “.346500”

由data A 想得到data B

是每天的数值都用每月均值替代

作者: Qiong 时间: 2011-8-2 17:27
标题: Re: sas 按月份算均值
权在哪里？

作者: shiyiming 时间: 2011-8-2 19:33
标题: Re: sas 按月份算均值
是每天的数值都用每月均值替代

欢迎光临 SAS中文论坛 (http://mysas.net/forum/)