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我試圖來計算過濾日期列的MIN日期和MAX日期之間的年數再由第Y列列OVER X的COUNT劃分結果Spotfire中則DateDiff使用自定義表達式
的Spotfire文檔中說,自定義表達式是操作過濾數據的關鍵,但我不確定如何將臨時變量傳遞給SpotFilter功能,如DateDiff。
Example:
DateDiff(Min([Date]),Max([Date]))/[Column.Y] OVER [Column.X]
+------+----------+------------+
| Name | Date | Made Sale? |
+------+----------+------------+
| joe | 1/1/2010 | 10 |
| joe | 2/1/2011 | 11 |
| joe | 3/1/2012 | |
| joe | 4/1/2013 | 40 |
| joe | 5/1/2014 | |
| pam | 1/1/2010 | 100 |
| pam | 2/1/2011 | 19 |
| pam | 3/1/2012 | 23 |
| pam | 4/1/2013 | 30 |
| pam | 5/1/2014 | |
| mark | 1/1/2010 | |
| mark | 2/1/2011 | 1 |
| mark | 3/1/2012 | |
| mark | 4/1/2013 | |
| mark | 5/1/2014 | 49 |
+------+----------+------------+
EG. Filter from 2011-2014, what were Joe, Pam, and Mark's frequency of sales per year?
你能否提供一些示例數據。像6到10行顯示你需要達到什麼? –
更新,這是否更清晰? – ScrubDubbins