Excel distinct count with conditions

    A            B       C   D  E       F           G           H   I  
115492          2009    10  42  5   90160624    15-Oct-09       WH  5
115492          2009    10  42  5   90160624    15-Oct-09       WH  5
115492          2009    10  42  5   90160624    15-Oct-09       WH  5
115492          2009    10  42  5   90160624    15-Oct-09       WH  5
115481          2009    10  44  6   90170587    30-Oct-09       WH  3
115481          2009    10  44  6   90170587    30-Oct-09       WH  3
115481          2009    10  44  6   90170587    30-Oct-09       WH  3
115481          2009    10  44  6   90170587    30-Oct-09       WH  3
115481          2009    10  44  6   90170587    30-Oct-09       WH  3
115481          2009    10  44  6   90170587    30-Oct-09       WH  3
115481          2009    10  44  6   90170587    30-Oct-09       WH  3
115481          2009    10  44  6   90170587    30-Oct-09       WH  3
115481          2009    10  44  6   90170587    30-Oct-09       WH  3
115520          2009    11  45  5   90174693    5-Nov-09        WH  3
115520          2009    11  45  5   90174693    5-Nov-09        WH  3
115520          2009    11  45  5   90174693    5-Nov-09        WH  3
115520          2009    11  45  5   90174693    5-Nov-09        WH  3
115502          2009    11  46  6   90179821    13-Nov-09       WH  3
115502          2009    11  46  6   90179821    13-Nov-09       WH  3
115502          2009    11  46  6   90179821    13-Nov-09       WH  3
115502          2009    11  46  6   90179821    13-Nov-09       WH  3
115502    开发者_运维百科      2009    11  46  6   90179821    13-Nov-09       WH  3
115502          2009    11  46  6   90179821    13-Nov-09       WH  3
115502          2009    11  46  6   90179821    13-Nov-09       WH  3
115502          2009    11  46  6   90179821    13-Nov-09       WH  3
115502          2009    11  46  6   90179821    13-Nov-09       WH  3
123057          2009    11  46  3   90182107    17-Nov-09       WH  3
123057          2009    11  46  3   90182107    17-Nov-09       WH  3
123057          2009    11  46  3   90182107    17-Nov-09       WH  3
123057          2009    11  46  3   90182107    17-Nov-09       WH  3
123056          2009    11  47  3   90186948    24-Nov-09       WH  3
123056          2009    11  47  3   90186948    24-Nov-09       WH  3
123056          2009    11  47  3   90186948    24-Nov-09       WH  3
123056          2009    11  47  3   90186948    24-Nov-09       WH  3
115506          2009    11  47  3   90186673    24-Nov-09       WH  5
115506          2009    11  47  3   90186673    24-Nov-09       WH  5
115506          2009    11  47  3   90186673    24-Nov-09       WH  5
115506          2009    11  47  3   90186673    24-Nov-09       WH  5
115506          2009    11  47  3   90186673    24-Nov-09       WH  5
115506          2009    11  47  3   90186673    24-Nov-09       WH  5
115506          2009    11  47  3   90186673    24-Nov-09       WH  5
115506          2009    11  47  3   90186673    24-Nov-09       WH  5
115496          2009    11  47  4   90187409    25-Nov-09       WH  3
115496          2009    11  47  4   90187409    25-Nov-09       WH  3
115496          2009    11  47  4   90187409    25-Nov-09       WH  3
115496          2009    11  47  4   90187409    25-Nov-09       WH  3
123058          2009    12  50  5   90198449    10-Dec-09       WH  3
123058          2009    12  50  5   90198449    10-Dec-09       WH  3
123058          2009    12  50  5   90198449    10-Dec-09       WH  3
123058          2009    12  50  5   90198449    10-Dec-09       WH  3
115522          2009    12  50  7   90200094    12-Dec-09       WH  7
115522          2009    12  50  7   90200094    12-Dec-09       WH  7
115522          2009    12  50  7   90200094    12-Dec-09       WH  7
115522          2009    12  50  7   90200094    12-Dec-09       WH  7
115522          2009    12  50  7   90200094    12-Dec-09       WH  7
123059          2009    12  51  6   90203897    18-Dec-09       WH  4
123059          2009    12  51  6   90203897    18-Dec-09       WH  4
123059          2009    12  51  6   90203897    18-Dec-09       WH  4
123059          2009    12  51  6   90203897    18-Dec-09       WH  4
115539          2009    12  51  7   90204074    19-Dec-09       WH  5
115539          2009    12  51  7   90204074    19-Dec-09       WH  5
115539          2009    12  51  7   90204074    19-Dec-09       WH  5
115539          2009    12  51  7   90204074    19-Dec-09       WH  5
115539          2009    12  51  7   90204074    19-Dec-09       WH  5
115539          2009    12  51  7   90204074    19-Dec-09       WH  5
115541          2009    12  51  7   90204389    19-Dec-09       WH  4
115541          2009    12  51  7   90204389    19-Dec-09       WH  4
115541          2009    12  51  7   90204389    19-Dec-09       WH  4
115541          2009    12  51  7   90204389    19-Dec-09       WH  4
115534          2009    12  52  2   90209074    28-Dec-09       WH  5
115534          2009    12  52  2   90209074    28-Dec-09       WH  5
115534          2009    12  52  2   90209074    28-Dec-09       WH  5
115534          2009    12  52  2   90209074    28-Dec-09       WH  5
115534          2009    12  52  2   90209074    28-Dec-09       WH  5
115534          2009    12  52  2   90209074    28-Dec-09       WH  5

considering a table above, How do I get distinct count of "A" column value where "I" has value "3"?

---

Heres an alternative that doesn't rely on unique items in column A being consecutive

=SUM(IF(FREQUENCY(A2:A76,A2:A76)>0,(I2:I76=3)*1,0))

Enter as an array formula

---

If I'm understanding correctly, you want a count of unique entries in column 'A' where column 'I' equals 3.

One (imperfect) solution would be:

=SUM((A1:A999<>A2:A1000)*(I2:I1000=3))+IF(A1=A2,0,IF(I1=3,1,0))

evaluated as an array formula.

---

Here is a "one shot solution":

• filter column I >> http://www.contextures.com/xlautofilter01.html
• select whole A column
• Excel will display the SUM and the COUNT values on the bottom right

[EDIT] Btw, here are some tips for removing duplicates

[EDIT] Formula solution

• Add a formula in Column J: =IF(COUNTIF(A3:$A$1000,A2)>1,0,1) (this will tell if there is another same value further in the range)
• Drag and drop this formula till the end of your range
• Use a formula like Chris suggested ("kindof" because this is not an array formula): =SUMPRODUCT((I2:I1000=3)*(A2:A1000))