问题
I'm in need of a solution for my excel workbook. I have a column with duplicate values in sheet1 and want to display the unique values of that column in sheet2. May be it looks simple but whenever there is a change in values in sheet1 those values should reflect in sheet2. I need an excel formula but not the VBA.
I tried few different options like array and stuff but could not able to get the proper solution. Appreciate your timely help. Many Thanks.
回答1:
Say the Sheet1 table is from A1 thru A100
In Sheet2 cell A1 enter:
=Sheet1!A1
In Sheet2 cell A2 enter the array formula:
=IFERROR(INDEX(Sheet1!$A$1:$A$100,INT(SMALL(IF(COUNTIF(A$1:A1,Sheet1!$A$1:$A$100)=0,ROW(Sheet1!$A$1:$A$100)+(COLUMN(Sheet1!$A$1:$A$100)*0.01)),1)),100*MOD(SMALL(IF(COUNTIF(A$1:A1,Sheet1!$A$1:$A$100)=0,ROW(Sheet1!$A$1:$A$100)+(COLUMN(Sheet1!$A$1:$A$100)*0.01)),1),1)),"")
and copy down.
Array formulas must be entered with Ctrl + Shift + Enter rather than just the Enter key.
Adjust the $A$1:$A$100 to match the exact size in Sheet1.
If you can apply a "helper" column in Sheet1, the formula can be tremendously simplified.
来源：https://stackoverflow.com/questions/28676411/how-to-filter-unique-values-in-a-column-using-excel-formula