Match Last Occurrence of two numbers and Count to Previous Occurence

Hi All,

Thank you very much for taking the time to provide various formulas.

I need to find /match the LAST time two specific numbers appeared together
and Count the number of Rows between the LAST time they appeared together
back to their PREVIOUS appearance together.

I have a table of numbers that spans nine Columns (A-I)and 400+ Rows (20-
480). I have made the table a Dynamic Range called "Numbers". Each Row
contains numbers in ascending order.

Is there a formula that can check for two specific numbers Row by Row
through the (nine column) Range "Numbers" and Return the Row Count of their
LAST appearance together back to their PREVIOUS appearance together, from
the Dynamic Range "Numbers"?

Columns A-I = Dynamic Range "Numbers"
Rows 20-480

Example sample data from Range "Numbers":

ROW20 51 58 59 65 69 72 73 76 79
ROW31 50 51 58 72 73 76 79 80 81
ROW50 50 52 60 62 68 69 70 75 76
ROW75 53 54 59 60 62 69 70 72 73
ROW80 50 51 58 59 70 71 72 73 76
ROW83 51 53 65 67 68 69 78 80 81
ROW94 51 52 58 60 61 65 67 72 73
ROW99 50 53 57 62 63 68 70 71 73

Example Criteria:
Locate when 72 AND 73 LAST appeared together and Count back to their
PREVIOUS appearance together to get the required Count; i.e. the number of
Rows in between the LAST appearance and the PREVIOUS appearance. Count from
the Row above LAST appearance to the Row before PREVIOUS appearance.

Expected Result:
72 AND 73 LAST Appear=ROW99 PREVIOUS Appear=ROW94(Count From Row98 To Row95)
Count=4

50 AND 51 LAST Appear=ROW80 PREVIOUS Appear=ROW31(Count From Row79 To Row32)
Count=48

68 AND 69 LAST Appear=ROW83 PREVIOUS Appear=ROW50(Count From Row82 To Row51)
Count=32

80 AND 81 LAST Appear=ROW83 PREVIOUS Appear=ROW31(Count From Row82 To Row32)
Count=51


Regards,
Sam

--
Message posted via http://www.officekb.com

Hi!

ROW99 50 53 57 62 63 68 70 71 73
72 AND 73 LAST Appear=ROW99

Is that a typo?

Also, I notice that the numbers you're looking for are
consecutive:

72 AND 73
50 AND 51
68 AND 69
80 AND 81

Is that always the case?

Biff

-----Original Message-----
Hi All,

Thank you very much for taking the time to provide
various formulas.

I need to find /match the LAST time two specific numbers
appeared together
and Count the number of Rows between the LAST time they
appeared together
back to their PREVIOUS appearance together.

I have a table of numbers that spans nine Columns (A-I)
and 400+ Rows (20-
480). I have made the table a Dynamic Range
called "Numbers". Each Row
contains numbers in ascending order.

Is there a formula that can check for two specific
numbers Row by Row
through the (nine column) Range "Numbers" and Return the
Row Count of their
LAST appearance together back to their PREVIOUS
appearance together, from
the Dynamic Range "Numbers"?

Columns A-I = Dynamic Range "Numbers"
Rows 20-480

Example sample data from Range "Numbers":

ROW20 51 58 59 65 69 72 73 76 79
ROW31 50 51 58 72 73 76 79 80 81
ROW50 50 52 60 62 68 69 70 75 76
ROW75 53 54 59 60 62 69 70 72 73
ROW80 50 51 58 59 70 71 72 73 76
ROW83 51 53 65 67 68 69 78 80 81
ROW94 51 52 58 60 61 65 67 72 73
ROW99 50 53 57 62 63 68 70 71 73

Example Criteria:
Locate when 72 AND 73 LAST appeared together and Count
back to their
PREVIOUS appearance together to get the required Count;
i.e. the number of
Rows in between the LAST appearance and the PREVIOUS
appearance. Count from
the Row above LAST appearance to the Row before PREVIOUS
appearance.

Expected Result:
72 AND 73 LAST Appear=ROW99 PREVIOUS Appear=ROW94(Count
From Row98 To Row95)
Count=4

50 AND 51 LAST Appear=ROW80 PREVIOUS Appear=ROW31(Count
From Row79 To Row32)
Count=48

68 AND 69 LAST Appear=ROW83 PREVIOUS Appear=ROW50(Count
From Row82 To Row51)
Count=32

80 AND 81 LAST Appear=ROW83 PREVIOUS Appear=ROW31(Count
From Row82 To Row32)
Count=51


Regards,
Sam

--
Message posted via http://www.officekb.com
.

Kludgy, but it'll work:

=MAX(IF(findnum1*findnum20,ROW(Numbers)))-LARGE(IF
(findnum1*findnum20,ROW(Numbers)),2)-1

Array-entered, whe

findnum1 =

COUNTIF(INDIRECT(ADDRESS(ROW(Numbers),MIN(COLUMN
(Numbers)))&":"&ADDRESS(ROW(Numbers),COLUMNS
(Numbers))),num1)

findnum2 =

=COUNTIF(INDIRECT(ADDRESS(ROW(Numbers),MIN(COLUMN
(Numbers)))&":"&ADDRESS(ROW(Numbers),COLUMNS
(Numbers))),num2)

num1 = cell containing first number
num2 = cell containing second number

HTH
Jason
Atlanta, GA

-----Original Message-----
Hi All,

Thank you very much for taking the time to provide
various formulas.

I need to find /match the LAST time two specific numbers
appeared together
and Count the number of Rows between the LAST time they
appeared together
back to their PREVIOUS appearance together.

I have a table of numbers that spans nine Columns (A-I)
and 400+ Rows (20-
480). I have made the table a Dynamic Range
called "Numbers". Each Row
contains numbers in ascending order.

Is there a formula that can check for two specific
numbers Row by Row
through the (nine column) Range "Numbers" and Return the
Row Count of their
LAST appearance together back to their PREVIOUS
appearance together, from
the Dynamic Range "Numbers"?

Columns A-I = Dynamic Range "Numbers"
Rows 20-480

Example sample data from Range "Numbers":

ROW20 51 58 59 65 69 72 73 76 79
ROW31 50 51 58 72 73 76 79 80 81
ROW50 50 52 60 62 68 69 70 75 76
ROW75 53 54 59 60 62 69 70 72 73
ROW80 50 51 58 59 70 71 72 73 76
ROW83 51 53 65 67 68 69 78 80 81
ROW94 51 52 58 60 61 65 67 72 73
ROW99 50 53 57 62 63 68 70 71 73

Example Criteria:
Locate when 72 AND 73 LAST appeared together and Count
back to their
PREVIOUS appearance together to get the required Count;
i.e. the number of
Rows in between the LAST appearance and the PREVIOUS
appearance. Count from
the Row above LAST appearance to the Row before PREVIOUS
appearance.

Expected Result:
72 AND 73 LAST Appear=ROW99 PREVIOUS Appear=ROW94(Count
From Row98 To Row95)
Count=4

50 AND 51 LAST Appear=ROW80 PREVIOUS Appear=ROW31(Count
From Row79 To Row32)
Count=48

68 AND 69 LAST Appear=ROW83 PREVIOUS Appear=ROW50(Count
From Row82 To Row51)
Count=32

80 AND 81 LAST Appear=ROW83 PREVIOUS Appear=ROW31(Count
From Row82 To Row32)
Count=51


Regards,
Sam

--
Message posted via http://www.officekb.com
.

Here's one simple set-up to tinker with ..

Assume the source table is in Sheet1, A20:I480

In Sheet1
---------
Put in, say, K20:

=IF(AND(ISNUMBER(MATCH(Sheet2!$A$2,A20:I20,0)),ISN UMBER(MATCH(Sheet2!$B$2,A2
0:I20,0))),ROW(),"")

Copy K20 down to K480

In Sheet2
---------
Assume the pair of numbers (e.g.: 68,69 or 80,81 etc) will be input into
A2:B2
The order of the paired inputs into A2:B2 is immaterial, can be 68,69 or
69,68, for example

Put in C2:

=IF(OR($A2="",$B2=""),"",LARGE(Sheet1!$K$2:$K$480, COLUMNS($A$1:A1)))

Copy C2 across to D2

Put in E2: =IF(OR(C2="",D2=""),"",(C2-D2)-1)

For the pair of numbers input into A2:B2 :
C2 will return the row number of the last occurrence in Sheet1
D2 will return the row number of the 2nd last occurrence in Sheet1
E2 will return the number of rows in-between the last and the 2nd last
occurrence in Sheet1

--
Rgds
Max
xl 97
---
GMT+8, 1° 22' N 103° 45' E
xdemechanik atyahoodotcom
----
"Sam via OfficeKB.com" wrote in message
...
Hi All,

Thank you very much for taking the time to provide various formulas.

I need to find /match the LAST time two specific numbers appeared
together
and Count the number of Rows between the LAST time they appeared together
back to their PREVIOUS appearance together.

I have a table of numbers that spans nine Columns (A-I)and 400+ Rows (20-
480). I have made the table a Dynamic Range called "Numbers". Each Row
contains numbers in ascending order.

Is there a formula that can check for two specific numbers Row by Row
through the (nine column) Range "Numbers" and Return the Row Count of
their
LAST appearance together back to their PREVIOUS appearance together, from
the Dynamic Range "Numbers"?

Columns A-I = Dynamic Range "Numbers"
Rows 20-480

Example sample data from Range "Numbers":

ROW20 51 58 59 65 69 72 73 76 79
ROW31 50 51 58 72 73 76 79 80 81
ROW50 50 52 60 62 68 69 70 75 76
ROW75 53 54 59 60 62 69 70 72 73
ROW80 50 51 58 59 70 71 72 73 76
ROW83 51 53 65 67 68 69 78 80 81
ROW94 51 52 58 60 61 65 67 72 73
ROW99 50 53 57 62 63 68 70 71 73

Example Criteria:
Locate when 72 AND 73 LAST appeared together and Count back to their
PREVIOUS appearance together to get the required Count; i.e. the number of
Rows in between the LAST appearance and the PREVIOUS appearance. Count
from
the Row above LAST appearance to the Row before PREVIOUS appearance.

Expected Result:
72 AND 73 LAST Appear=ROW99 PREVIOUS Appear=ROW94(Count From Row98 To
Row95)
Count=4

50 AND 51 LAST Appear=ROW80 PREVIOUS Appear=ROW31(Count From Row79 To
Row32)
Count=48

68 AND 69 LAST Appear=ROW83 PREVIOUS Appear=ROW50(Count From Row82 To
Row51)
Count=32

80 AND 81 LAST Appear=ROW83 PREVIOUS Appear=ROW31(Count From Row82 To
Row32)
Count=51


Regards,
Sam

--
Message posted via http://www.officekb.com

If the numbers are always consecutive, as noted in my
reply, this is much easier than all of that!

Biff

-----Original Message-----
Kludgy, but it'll work:

=MAX(IF(findnum1*findnum20,ROW(Numbers)))-LARGE(IF
(findnum1*findnum20,ROW(Numbers)),2)-1

Array-entered, whe

findnum1 =

COUNTIF(INDIRECT(ADDRESS(ROW(Numbers),MIN(COLUM N
(Numbers)))&":"&ADDRESS(ROW(Numbers),COLUMNS
(Numbers))),num1)

findnum2 =

=COUNTIF(INDIRECT(ADDRESS(ROW(Numbers),MIN(COLU MN
(Numbers)))&":"&ADDRESS(ROW(Numbers),COLUMNS
(Numbers))),num2)

num1 = cell containing first number
num2 = cell containing second number

HTH
Jason
Atlanta, GA

-----Original Message-----
Hi All,

Thank you very much for taking the time to provide
various formulas.

I need to find /match the LAST time two specific numbers
appeared together
and Count the number of Rows between the LAST time they
appeared together
back to their PREVIOUS appearance together.

I have a table of numbers that spans nine Columns (A-I)
and 400+ Rows (20-
480). I have made the table a Dynamic Range
called "Numbers". Each Row
contains numbers in ascending order.

Is there a formula that can check for two specific
numbers Row by Row
through the (nine column) Range "Numbers" and Return the
Row Count of their
LAST appearance together back to their PREVIOUS
appearance together, from
the Dynamic Range "Numbers"?

Columns A-I = Dynamic Range "Numbers"
Rows 20-480

Example sample data from Range "Numbers":

ROW20 51 58 59 65 69 72 73 76 79
ROW31 50 51 58 72 73 76 79 80 81
ROW50 50 52 60 62 68 69 70 75 76
ROW75 53 54 59 60 62 69 70 72 73
ROW80 50 51 58 59 70 71 72 73 76
ROW83 51 53 65 67 68 69 78 80 81
ROW94 51 52 58 60 61 65 67 72 73
ROW99 50 53 57 62 63 68 70 71 73

Example Criteria:
Locate when 72 AND 73 LAST appeared together and Count
back to their
PREVIOUS appearance together to get the required Count;
i.e. the number of
Rows in between the LAST appearance and the PREVIOUS
appearance. Count from
the Row above LAST appearance to the Row before PREVIOUS
appearance.

Expected Result:
72 AND 73 LAST Appear=ROW99 PREVIOUS Appear=ROW94(Count
From Row98 To Row95)
Count=4

50 AND 51 LAST Appear=ROW80 PREVIOUS Appear=ROW31(Count
From Row79 To Row32)
Count=48

68 AND 69 LAST Appear=ROW83 PREVIOUS Appear=ROW50(Count
From Row82 To Row51)
Count=32

80 AND 81 LAST Appear=ROW83 PREVIOUS Appear=ROW31(Count
From Row82 To Row32)
Count=51


Regards,
Sam

--
Message posted via http://www.officekb.com
.

.

Hi Biff,

Sorry, yes it is a typo. Should be 72 AND 73 LAST Appear=ROW94 Previous
Appear=ROW80. The numbers will always be consecutive.

Regards,
Sam

--
Message posted via http://www.officekb.com

Hi!

OK.

Assume your table is in the range A20:I480.

Use a cell to hold the numbers you're looking for, say A1:

A1 = 7273

In a helper column, say column J, in J20 enter this
formula and copy down to J480. (or, just double click the
fill handle)

=IF(ISNUMBER(SEARCH
(A$1,A20&B20&C20&D20&E20&F20&G20&H20&I20)),ROW()," ")

Then, to find the number of rows between the last instance
and the previous instance:

=LARGE(J20:J480,1)-LARGE(J20:J480,2)-1

Biff

-----Original Message-----
Hi Biff,

Sorry, yes it is a typo. Should be 72 AND 73 LAST
Appear=ROW94 Previous
Appear=ROW80. The numbers will always be consecutive.

Regards,
Sam

--
Message posted via http://www.officekb.com
.

For the pair of numbers input into A2:B2 :
C2 will return the row number of the last occurrence in Sheet1
D2 will return the row number of the 2nd last occurrence in Sheet1
E2 will return the number of rows in-between the last and the 2nd last
occurrence in Sheet1

The test results (below) seems to reconcile with expected results
based on the source data as originally posted,
with typo corrected for line:

ROW99 50 53 57 62 63 68 70 71 73

to be
ROW99 50 53 57 62 63 68 70 72 73

Paired inputs in A2:B2 returns in: C2 - D2 - E2
-----------------------------------------------
72,73 returns: 99 - 94 - 4
50,51 returns: 80 - 31 - 48
68,69 returns: 83 - 50 - 32
80,81 returns: 83 - 31 - 51

(Paired inputs can be in any order: 73,72 or 51,50 etc)
--
Rgds
Max
xl 97
---
GMT+8, 1° 22' N 103° 45' E
xdemechanik atyahoodotcom
----

Hi Biff,

The Dynamic Range "Numbers" is the main source. However, I've had to set up
a summary sheet where the consecutive numbers I'm looking for are in two
separate Columns on the same Row. Eg: 72 AND 73 in Columns A and B Row 2
respectively.

Can your formula using the SEARCH Function accommodate my summary sheet
setup.

Regards,
Sam

--
Message posted via http://www.officekb.com

Hi Jason,

Thank you for assistance. I've entered your Array Formula as suggested
keeping the FindNum1 and FindNum2 in separate manageable parts; however, I
get a #Num! error - not sure why? I've also input the Formula as one very
large Formula but still get the #Num! error.

Would appreciate further assitance with using the "Numbers" Dynamic Range.

Regards,
Sam

--
Message posted via http://www.officekb.com