The Issue
In simple terms, I am trying to set a formula for an alternating pattern. The issue I keep running into is the fact that there are two alternating values, and Google Sheets doesn't like to repeat only one of those values without the other.
I have created an example sheet to demonstrate my issue. In Column A, a date is input. Column B and Column C then autofill with the day of the week and AM or PM respectively. Every other value in Column C alternates between AM and PM. I am trying to set it up so that the row is blank until a value in input in Column A. The issue comes when there is an odd number of Dates in Column A. Note that the alternating AM/PM pattern will never change.
What I've Tried
As seen in the image above, there are three main methods that I have tried. The data in C2:C8 is the desired result.
Method 1:
E2: =transpose(split({rept(join(";",{"AM";" "})&";",(roundup(counta(A2:A9)/2)))},";"))
F3: =transpose(split({rept(join(";",{"PM";" "})&";",(counta(A2:A9)/2))},";"))
These formulas work separately, and best represent what I am trying to accomplish, but I have not found a way to combine them to work together in one column.
Method 2:
H2: =transpose(split({rept(join(";",{"AM";"PM"})&";",(roundup(counta(A2:A9)/2)))},";"))
This is essentially the same as Method 1, but put into one formula. The issue here is that Google Sheets doesn't like to repeat half a number of times. So if the number of times to repeat (counta(A2:A9)/2) contains a half (i.e. 3.5), it will still round down to the nearest whole number.
Method 3:
J2: =ArrayFormula(TEXT(SEQUENCE(3),"")&{"AM";"PM"})
This one appeared most promising to me because when incrementing by one, it added one row, but I quickly ran into the issue where if I went over a sequence number of 2, it threw the error Array arguments to CONCAT are of different size.
References
I have used various search terms and websites to try to solve this, and have yet to find something that works. I may be missing something very simple, though, and hopefully this is a quick solution.
Example Sheet:
https://docs.google.com/spreadsheets/d/1I3EtptFLfDHpAQ8AR6Lwa01dSpJ3Cy8MTX1_OjHExSc/edit?usp=sharing
All my formulas are derived from the websites below:
REPT Function in Google Sheets
How to Repeat Multiple Columns N Times in Google Sheets
Delete everything in Col C (including the header) and place this formula in C1:
=ArrayFormula({"AM/PM"; IF(A2:A="",,IF(COUNTIFS(A2:A,A2:A,ROW(A2:A),"<="&ROW(A2:A))=1,"AM","PM"))})
The COUNTIFS finds the number of matches for the date "up to this row" for every row. Since that count will (or should) only ever be a 1 or a 2, the IF makes easy work of assigning "AM" or "PM" accordingly.
If I understand correctly it is enough to use ISEVEN function to alternate by rows:
=ArrayFormula(IF(A2:A,CHOOSE(ISEVEN(ROW(A2:A))+1,"PM","AM"),))
Related
I have a Google Sheet, and I'm trying to see if it's possible to get a consecutive count outputted in a third column based on the values of two other columns.
My columns are:
Column A: Will have a handful of text values that are "grouped" together. Likely around 30 of the same value, until it changes to another value. In the image above, these are text1, and text2.
Column B: Will have one of 3 values assigned to each value in column A. In the image above, these are id1, id2, id3.
Column C: Will output a consecutive count based on the values of the first two columns. My hope is that if there are multiple ID1,ID2 in consecutive order, they'll repeat that first +1 value; while ID3 is always plus 1 to the count. This is what I am trying to show in column C in the layout image above.
I've hit a wall with trying to accomplish this with various COUNTIF iterations.
Thanks for any help, or any better ideas to accomplish something similar.
(I'm hoping for a formula, but open to being pointed into a direction for a script if that's the only way).
You can try following formula:
=IF(A2=A1;IF(OR(B2="id3";B2<>B1);C1+1;C1);1)
It is also possible to do this as an array formula. I used offset ranges for column B in the first Countifs to check for a change in value but this made it a little awkward to get equal-sized arrays:
=ArrayFormula(if(A2:A="","",
countifs({"";B2:B}<>{B2:B;""},true,{A2:A;""},A2:A,row(A:A),"<"&row(A2:A),{B2:B;""},"<>id3")+
countifs(A2:A,A2:A,row(A2:A),"<="&row(A2:A),B2:B,"=id3")
))
I am trying to use AVERAGEIFS inside ARRAYFORMULA. Looking at other questions, I have come to the conclusion that it is not possible without using QUERY function.
My intention is to average the values of a column whenever they share the same ID.
I think this question comes pretty close to what I need, but I haven't been able to replicate and adapt its solution on my own sheet.
In this sheet I show the result I expect (I got it by dragging the formula). I've also reviewed the Query Language Reference, unsuccessfully.
Thanks a lot for your time and effort.
So the formula should be
=ArrayFormula(iferror(sumif(A2:A,A2:A,B2:B)/countif(A2:A,A2:A)))
Note that if there were any text values in the points column, this would still return a result (because count would be greater than zero) - you could instead use
=ArrayFormula(if(isnumber(B2:B),(sumif(A2:A,A2:A,B2:B)/countif(A2:A,A2:A)),""))
If you had a mixture of rows with text and rows with numbers for any ID, this would return a smaller result than the avg or average formula. This is a limitation of this method. You can't put an extra condition in (that column B has to contain a number) because you would need countifs and countifs isn't array-friendly. It still seems strange that AFAIK countif and sumif are the only functions out of this family that are array-friendly while countifs, sumifs, averageif etc. are not.
you can do:
=ARRAYFORMULA(IFERROR(VLOOKUP(A2:A; QUERY(A2:B; "select A,avg(B) group by A"); 2; )))
SOLVED EDIT
Thank you for the help. Solution here.
ORIGINAL POST
I have made a google sheet to describe the issue I am facing linked here (https://docs.google.com/spreadsheets/d/1yK6ZAX8BFnEqiuQO9HIxuY0l62ewDDccj-8EN1r2i2w/edit?usp=sharing).
I will also describe in words, below, the problem I am facing, along with the solutions I have tried.
The data of column A are random single-digit (0-9). I would like column B to show the most recent even number from column A, but only up to a specific row. That specific row is the row corresponding to the row of the cell in column B. In other words, in cell B7, I want to find the most recently entered even number of column A, specifically only on the range A2:A7 (A1 contains a column header).
This is actually a pretty simple formula, and I can get the desired outputs by simply checking if the value in a cell in column A is even and then returning the value of that cell if it is, or the output of the cell above if it isn't. So the formula would look something like: =IF(ISEVEN(A7),A7,B6)
However, my problem is that the length of the data in column A will be growing as more data are entered, and my current solution of using the fill handle to copy the formula to new cells is inelegant and time-consuming. So my desired solution is to use an array formula entered into the first cell of column B (B2), capable of returning the same value as the other formula. The formula I tried to enter to perform this was the following: =ARRAYFORMULA(IF(ISEVEN(A2:A),A2:A,INDIRECT(ADDRESS(ROW(A2:A)-1,2))))
However, as some of my previous work with arrays has taught me, not all formulas iterate as expected down the array. The formula seems to be able to return the correct output on lines which are already even, but it is unable to return the expected most-recently entered even number for all the other lines. It appears that the formula is not able to appropriately interpret the value_if_false argument of the IF formula.
I'm a little new to scripting, so I'm still trying to learn, but I also tried to dabble around with custom functions to no avail. I'm still wet behind the ears when it comes to coding, which is why I've been so lenient on the built-in formulas of Google Sheets, but I fear I may have reached the limit of what Sheets formulas can do.
I am open to trying new approaches, but my only real constraint is that I would really like for this to be a one-touch (or even better no-touch) solution, hope that's not too far beyond the scope of this issue. Any assistance would be much appreciated.
EDIT
After rubber-ducking the problem here, I went back and tried to use the OFFSET formula, hoping I could get it to play nicely with the array formula. Alas, I was unable, but I thought I should at least post my progress here for reference.
Attempt with offset
Still working at it!
Doing a vlookup on the row number seems to work for me
=ArrayFormula(if(A2:A="","",vlookup(row(A2:A),{if(iseven(A2:A),row(A2:A)),A2:A},2)))
Note: if there are no even numbers in range for some rows, it will produce #N/A for those rows.
I have a Google Sheets in question. Here is a mocked version that you can copy or comment on: https://docs.google.com/spreadsheets/d/1szcfZt_CtE0Cd_evKJwN4enZE7JcmDFcw9XhoX-_mlw/edit?usp=sharing
The sheets comes with 2 columns, Test number and Test result. I'd like to use array formula to automatically fill column C whenever new tests are entered. The specification is that the number in column C should always refer to the last "Fail" test number up till each row. You can see the expected result in column E.
I can come up with many solutions that require a formula to be applied to each new cell, which I think is iterative approach. One example is in column G. The reason is that "up till the current row" can't be met with array formula. I tried QUERY function with no success. I know App Script can do this too, but that's not auto fill approach as well.
EDIT: Added a brute-force solution, which can only work with limit number of consecutive "Pass" results.
Please see the screenshot for a solution using an array formula.
I'm trying to summarize data from several Google spreadsheet' sheets in a single one but I have some issues with SUMIF and FIND.
To Sum data from another sheet I have to use this (at least that's the only solution I've found)
=SUM(INDIRECT(""&A6&""&"!E2:E"))
Where I have the name of my sheet on A6.This makes everything easy because I have a column (A) with all the names of the sheets. I haven't found something like Sheets[1] in Google Docs.
My next step was to Sum Times from a specific column but remove a specific values, which in this case is 1 that get transformed internally 24:00:00 since it's a time column:
=SUM(INDIRECT(""&A6&""&"!D2:D")) - SUMIF(INDIRECT(""&A6&""&"!D2:D");"24:00:00")
Here I tried to do everything with a single SUMIF but I have no idea how. NOT("24:00:00") didn't work so I settled to this.
The last part is the most difficult and I'm not able to solve it.
I have a column with month names (for example) and I want to sum some data only when the month name contains "er". Here is what I thought:
=SUMIF(A6:A16,ISNUMBER(Find("er")),G6:G16)
This gives me always 0
(Note that the last one contains A6:A16 instead of the whole INDIRECT part because I am still testing it in a single sheet.)
Any Idea what I'm doing wrong?
I don't know why the above SUMIF doesn't work, what I've tested and works is:
=SUMIF(A6:A16,"*er*",G6:G16)
SUMIF is NOT SUM + IF as I thought. I hope it will help someone else.