I'm relatively new to excel programming. I'm working on making a spread sheet that shows exponential decay. I have one column (A1:A1000) of 1000 random numbers between 1 & 10 using the TRUNC(RAND()*10,0) in each cell. The next Column (B1:B1000) has a logic mask =IF(A1=0,1,0) , where if the value in the A cell is 0, then the B cell shows a 1. Next, to find the number of 0's in the A column, I have the next column taking the sum of B1:B1000, which returns the number of 0's that showed up in the first column. I'm sure there's an easier way to do that, but this seems to work fine.
Here's my problem, hopefully it's clear what I'm asking:
Next, I want to take the sum of the logic column (B) from B1:B(1000- the value of the sum from (B1:1000)) in the cell below the cell that calculates sum(B1:B1000). Is there a way to to algebra in a cell formula to reference a cell? More simply, if I want to refer to A3, for example, is there a way to input something like A(2+1) to get A3? Does this make sense?
You can very easily do, in VBA:
ActiveCell.Formula = "=A" & (2+1) & "+15"
In Excel:
=INDIRECT(ADDRESS(2+1, COLUMN(A1)))+15
This will set the formula to "=A3+15". Generally, this is best done with variables, so remember to do that.
In Excel, and as pointed out by Eric, you can write the referance to the cells just like normal strings thanks to INDIRECT() function.
Just make sure that the string passed to INDIRECT() is a valid cell reference.
For example :
=SUM(INDIRECT("B" & 2+7*(H2-1)):INDIRECT("B"&(2+7*H2)-1))
Here, I sum 7 lines for each week (H2). It gives the sum of B2:B8, B9:B15, B16:B22, etc.
Hope my example will help you figure out how to use it in real situation.
Related
The question is slightly confusing, so I will do my best to elaborate. I have a series of cells in a row with all of the cells in the row with a value of 0 and one cell having a value of 1. I want to use the COUNT function to count all of the cells to the right of the cell that contains the value of 1, including that cell. I would then use this number of counted cells in another equation. Does anyone have any suggestions on how to do this? I have tried using a lookup function inside of the count function, but it has not worked. This is my closest guess:
=COUNT(Lookup(1,A1:J1):J1)
This results in an error. Do I need to use VBA to make this work or should I be able to write an equation? I appreciate the help, or if there are any other strategies that I can use to attain the result I am looking for.
Edit: I am adding in some sample data and expected results. I am trying to count all of the cells to the right of the "1" including the cell containing the "1". So in this example, I would expect the formula to return "13" as there are 12 cells to the right of the "1"
You can use OFFSET() and MATCH():
That last "50" is a bit of a guess since I'm not sure how far to the right you want to count...
...and re-reading your question it's not clear if you only want to count values of 1 or if you also need to count other values as long as they're to the right of the first 1.
With data in A1 through J1, consider:
=10-MATCH(1,A1:J1,0)+1
In this case. 4 is the number of cells from G1 through J1, inclusive.
Assuming your range of 0 and 1 values is in row 2, starting from column B, use this formula in B3 and copy it across for as far as you need:
=IFERROR(COUNT($B2:B2)+1-MATCH(1,$B2:B2,0),0)
You could also use a formula of
=IF(A3>0,1+A3,IF(B2=1,1,0))
but that could cause issues if you have something in cell A3 itself.
You can use this formula:
=COUNTA(INDEX($A$1:$J$1,1,MATCH(1,$A$1:$J$1,0)):INDEX($A$1:$J$1,1,10))
The benefit to use this is it is not a volatile function, and it will also work for 1 appears in the last column.
You can use "COUNTIF" formula to count number of occurrences of specific number in a range of cells.
To count no of occurrences in a row.
=COUNTIF(1:1,1)
If it is in a column then
=COUNTIF(A:A,1)
Hope you are looking for a countif function.
COUNTIF(A1:A10, 1)
The above function counts the cell that has value 1 within the range A1:A10
Maybe this was asked before, but i cant describe it in few tags/words.
I am newbie with excel.
How can i countif cells in column on condition other than simple comparison?
For example "count cell if it contains data with point to other cell that is equal to something", without additional temp columns ofc and vba.
Related question: Would it be possible to set logic function during sum in range, with return added value on given cell ? For example if cell contains 5 add 9 to total sum otherwise -3.
Actually, countif function can also use formulae reference such as less than, greater than, so on.. Please refer to Excel Help (F1).
Examples:
=COUNTIF(C4:C26,A1)
the above code means that it will count the range for cells in C4:C26 which is "equal to" the value in cell A1
=COUNTIF(C4:C26,"<0.2")
the above code means that it will count the range for values which are less than 0.20
=COUNTIF(C4:C26,"<"&A1)
the above code means that it will count the range for values less than the value in cell A1.
With regards to your next question, you can use a simple if function to this with combination to the countif function such that:
=if(countif(A1:A5,5)>=1,sum(A1:A5)+9,sum(A1:A5)-3)
Cheers.
I'm working on a budget for a project with multiple phases. There is a possibility that not all phases will be worked on so I've added some lookups and SUMIF formulas so that I can get a summary of my included and excluded effort and dollar amounts. That all works fine. Now I'd like to hide my row of lookups (row 1), but still have a way of identifying which phases of the project are included and which are excluded. Obviously I could manually concatenate them together, but if the phases being included/excluded change then I need to remember to update those formulas (and it's not nearly as fun as doing all in a formula). Here's how my sheet looks:
The TEXTJOIN function seems like it should work (i.e. =TEXTJOIN(CHAR(10), TRUE, C2:N2)), but I can't wrap my head around how to make the range parameter dependent on my lookup row. I played around with INDEX using something like =TEXTJOIN(CHAR(10), TRUE, INDEX(A2:M2,,(A1:M1="Yes")*COLUMN(A1:M1))), but didn't have any luck. At the end of the day I want to have something like:
Phase 1 Phase 2 Phase 5
Please note that the above data should all appear in the same cell - using the line feed character, CHAR(10), as the delimiter in the TEXTJOIN function will make all of the phases appear on a new line within a single cell. I do not want to fill formulas through multiple cells. Thanks in advance for any help.
Please take a look at the picture. I had a similar issue in the past (and brought it to StackOverflow, at which point I was helped by #ScottCraner, original post here:
Doing an array formula lookup
Basically,
1) You set up the array you are looking through - in my case, its $A$2:$A$6, in your case it will be $B$2:$M$2.
2) You then nest the COUNTIFS function inside of a match function. The function does the following:
A) It checks whether the name of phase X has already shown up in column E when you are copy/pasting down
B) If it has, move on to the next one
C) If it hasn't, output
3) Of note: this is an array formula, so the formula itself is checking through every cell. So it looks at cell A2; if the cell in B2 is "Yes", and "Phase 1" isn't in range in column E, then put in phase 1. Because it is, its there. Then it looks at cell A3; if the cell in B3 is "Yes", the same thing for phase 2. Then it looks at cell A4; because B4 is "No", the *(B2:B6="Yes") will throw an error. and so on
4) Place error catching brackets around the function.
A less elegant way to go about this, which doesn't require array formulas would be to use the secondary column's "Yes/No" as an index. This assumes the value in the secondary column is redundant- and repeating the primary column's "Yes" or "No."
In C1: =CONCATENATE(B1,COUNTIFS($A$1:B1,B1)) -
Repeat relatively for E1, G1, etc.
Somewhere separate (the below formula assumes Row 1 of the same worksheet), you could then use: =IFERROR(INDEX($2:$2,MATCH(CONCATENATE("Yes",ROW()),$1:$1,0)-1),"")
To look up "Yes1", returning "Phase 1" and autofill downward. IFERROR is used here to return blank when you run out of "Yes" results.
I have been working on an attendance sheet and trying to make the monthly reports automatic. I have asked my previous question on the same issue and got the idea to accomplish the task.
But now I have stuck at one place. I have this below formula:
=COUNTIFS(C5:C27,">0", E5:E27,"G", F5:F27,"CAT1")
The value in cell "C" in the above is coming from the below formula (in cell "C")
=IF((COUNTIF(G5:AK5,"p"))>0,1,0)
I had to add this extra column ("C") only to supply input to my fist formula. My question is - "Can we merge the IF function inside the COUNTIFS to get the result in one go and to eliminate the use of an extra column (column C)"?
To perform these cell reference acrobatics you will likely need to switch to an array formula. Array formulas chew up calculation cycles logarithmically so it is good practise to narrow the referenced ranges to a minimum. A 'helper' column such as you've used in column C can generally reduce calculation cycles and make a worksheet more 'user friendly'.
A COUNTIFS function requires that the ranges being examined are not only the same size but also the same shape. Looking at G5:AK5 is not the same as looking at E5:E35 even though they contain the same number of cells¹.
In the sample data below, you formula is in A1 and uses the 'helper column' C. My array formula is in A2 and does not consider column C ahough it incorporated the logic.
The array formula in A2 is:
=SUM(IF(E5:E27 = "G", IF(F5:F27 = "CAT1", SIGN(COUNTIFS(OFFSET($G$5, ROW($1:$23)-1, 1, 1, 31), $I2)))))
Array formulas need to be finalized with Ctrl+Shift+Enter↵. Once entered into the first cell correctly, they can be filled or copied down or right just like any other formula.
¹Some functions not only accept but welcome cell ranges that are the same number of calls but transposed. Offsetting or staggering the ranges is also an option if the cell ranges are the same size. In difficult cases the TRANSPOSE function can be helpful.
Please pardon my poor explanation of my problem, any insight would be greatly appreciated.
I am using an average in excel that begins at a fixed cell and fills down.
For example: column B contains values, and column C contains the formula =AVERAGE($B$1:B1) filled down, so at row 10 the formula is =AVERAGE($B$1:B10)
I am wondering if there is a way to calculate this average that will "reset" when the value in the column A changes. Getting a formula for whether column A changes is easy using an IF function but I don't know how to change the reference cell when the average "resets." I attempted to attach an image with the formulas but I do not have 10 reputation so here is a link to a short example sheet:
https://drive.google.com/file/d/0BymZUcneHsYgUnRoYkRkdnJYbmM/view?usp=sharing
I would prefer do accomplish this without VBA if possible.
Thank you very much.
EDIT: would it be possible to have a count function next to the data column that starts over when column A switches from "A" to "B" (or "B" to "A"), then I could simply use an average offset with the resulting value to get the desired average?
You should use the =AVERAGEIF function.
=AVERAGEIF($A$1:A1,A1,$B$1:B1)
Here's how I ended up solving this:
I used =ROW()-MAX(INDEX((A$1:A2<>A2)*ROW(A$1:A2),0 to count down until "A" changed to "B" or vice versa, then used =ROW()-MAX(INDEX((A$1:A2<>A2)*ROW(A$1:A2),0 to average the data with the offset calculated in the previous formula.
Note that the data was still in column B, with "A" or "B" in column A, and these two formulas were placed in I and J, respectively
Thank you very much for all your help
You can use Indirect to resolve a custom range. Since values in "A" can come multiple time in distinct block, you will have to add an extra column to keep track of the starting row of each range :
(starting from row 2, [C1] = 1)
=IF(A2<>A1,ROW(A2),C1)
the result will be in column "D" :
=AVERAGE(INDIRECT("B"& C1 &":B"&ROW(A1)))