Sum Largest Negative and Positive Question

[MXL]

hello,

I have a table I would like to sum the largest negative sums and also the largest positive sums within a column, the table will illustrate below;

[TABLE="class: grid, width: 100"]
<tbody>[TR]
[TD="align: center"][/TD]
[TD="align: center"]A[/TD]
[TD="align: center"]B[/TD]
[TD="align: center"]B[/TD]
[/TR]
[TR]
[TD="align: center"]1[/TD]
[TD="align: center"]1[/TD]
[TD="align: center"]=a1[/TD]
[TD="align: center"]1[/TD]
[/TR]
[TR]
[TD="align: center"]2[/TD]
[TD="align: center"]3[/TD]
[TD="align: center"]=a1+a2[/TD]
[TD="align: center"]4[/TD]
[/TR]
[TR]
[TD="align: center"]3[/TD]
[TD="align: center"]-2[/TD]
[TD="align: center"]=a2+a3[/TD]
[TD="align: center"]2[/TD]
[/TR]
[TR]
[TD="align: center"]4[/TD]
[TD="align: center"]-3[/TD]
[TD="align: center"]=a3+a4[/TD]
[TD="align: center"]-1[/TD]
[/TR]
[TR]
[TD="align: center"]5[/TD]
[TD="align: center"]7[/TD]
[TD="align: center"]=a4+a5[/TD]
[TD="align: center"]6[/TD]
[/TR]
[TR]
[TD="align: center"]6[/TD]
[TD="align: center"]-3[/TD]
[TD="align: center"]=a5+a6[/TD]
[TD="align: center"]3[/TD]
[/TR]
[TR]
[TD="align: center"]7[/TD]
[TD="align: center"]Largest Positive Sum[/TD]
[TD="align: center"]6[/TD]
[TD="align: center"][/TD]
[/TR]
[TR]
[TD="align: center"]8[/TD]
[TD="align: center"]Largest Negative Sum[/TD]
[TD="align: center"]
-1[/TD]
[TD="align: center"][/TD]
[/TR]
</tbody>[/TABLE]

you can see in column A, the largest positive sum was in cell B5 with the sum of 6, the largest negative sum was in cell B4 with the negative sum of -1 Is there a formula I can input in cell B7 and B8 that will give me the largest positive and largest negative sums?

thank you for taking the time to read this and look forward to hearing from you all.

 

[Rick Rothstein]

The largest positive sum would be...

=MAX(B1:B6)

and the largest negative sum would be...

=MIN(B1:B6)

 

[MXL]

hello Rick,

thank you for your response much appreciated, would you be able to apply that formula without the helper column B1:B6? formula that can sum the largest running positive and negative sums in column A1:A6? i prefer not to have the helper column B1:B6. thank you and look forward to hearing from you.

 

[Finalfight40]

In your example wouldn't the largest possible sum be 4 since 7 + (-3) = 4

and also the largest negative sum be -5 since (-2) + (-3) = -5 ?

if so try:

=MAX(A1, A1:A5+A2:A6)

and

=MIN(A1, A1:A5+A2:A6)

both entered as arrays with ctrl + shift + enter

 

[MXL]

hi finalfight40,

the aim is to try and sum the largest running sum total and negative sum starting at cell a1 in column A, so if you start start summing from cell A1 and go down to cell A2, A3, A4, A5, and finally A6, you will notice that the largest positive sum during that sequence was 6, and the time that the sum was at its lowest from cell A1 and go down to cell A2, A3, A4, A5, and finally A6 the sum was -1, so i am trying to find a formula that can give me the largest positive sum starting from cell A1 and the smallest sum starting from cell A1 at in column A. Basically, trying to find at what point was the sum the largest and smallest when summing from A1 down to A6.

thank you and look forward to hearing from you.

 

[Eric W]

Try:

=MAX(SUBTOTAL(9,OFFSET(A1,0,0,ROW(A1:A6)-ROW(A1)+1)))

and

=MIN(SUBTOTAL(9,OFFSET(A1,0,0,ROW(A1:A6)-ROW(A1)+1)))

both confirmed with Control+Shift+Enter.

These find the max and min sums of A1, A1+A2, A1+A2+A3, A1+A2+A3+A4, A1+A2+A3+A4+A5, A1+A2+A3+A4+A5+A6. If you want to include other possible sums, like A3+A4+A5, that's much trickier.

 

[MXL]

hello Eric W,

Thank you very much, works perfect, much appreciated to you and all.