Suppose I have the table I need to VLOOKUP() through:
id | indicator | value
-----------------------
1 | a | abc
1 | b | def
1 | c | ghi
2 | a | bbc
2 | b | bef
3 | a | aef
There is a table where I need to attach only values with indicator equal to a:
id | value
----------
1 | abc
2 | bbc
3 | aef
Something like conditional VLOOKUP() is required. What is the elegant way to do it?
You can do multiple criteria INDEX-MATCH to achieve this:
=INDEX($C$1:$C$6,MATCH($E1&"a",$A$1:$A$6&$B$1:$B$6,0))
This is array formula and it works by hitting Ctrl+Shift+Enter.
Also, I assumed that your Lookup value is in cell E1, which is something you can change according to your needs.
Use an array formula:
I found this formula in the web a few years ago, cant remember where, but credit to them.
=VLOOKUP(CONCATENATE(D2,"a"), CHOOSE({1,2},A$1:A$10 & B$1:B$10, C$1:C$10 ),2,0)
For this example I used column D on the same sheet for the reference ID and column E for the result. Amend the references as required.
Due to this being an array formula, every time the formula is entered you will need to select the formula bar and hold CTRL and Shift and press enter on the keyboard.
Related
I have a spreadsheet that looks like this:
A B C D
------------------------------------
1 | Yes | No | | | |
2 | 1 | 1 | 0 | 1 | 0 |
------------------------------------
------------------------------------
12| Yes | No | | Yes | Yes |
13| Yes | Yes | No | No | |
14| Yes | No | | No | Yes |
15| No | Yes | No | No | |
...
I want to fill the cells in Row 2 with a 1 or 0 depending on several criteria. The value should be 1 if all of the following are met (using cell D2 as a reference):
All previous values in Row 1 should match at least one entry in the table starting at D12. For cell D2, this means A1:C1 should exactly match columns A:C in at least one row of the table.
For any of the matching rows from #1, there should be a non-empty value in the same column as the cell being evaluated. So cell D2 would look for a non-empty value in Column D of any rows that match the criteria in #1.
If either of these conditions fails, the cell value should be 0. In Cell D2 we have a value of 1 because the algorithm finds a match in rows 12 and 14 and a non-empty cell in D12 and D14.
I'll need to be able to apply this dynamically across several columns so I'm trying to avoid writing a column-specific function. I realize I could probably write a UDF to perform this, but I wanted to avoid going that route if possible.
Because this was a challenge I had a go at it and came up with
=SIGN(SUM(--(MMULT(($A1:A1=$A12:A15)*(B12:B15<>""),TRANSPOSE(COLUMN($A12:A15)^0))=COLUMNS($A1:A1))))
to be entered in B2 and pulled across. This has to be entered as an array formula using CtrlShiftEnter
A2 I think is just
=sign(counta(a12:a15))
because it will be 1 unless the whole column is empty.
I'm not sure there's a complete answer to your problem as stated without a UDF, but I'd question the method a bit and say "why complicate with 'AND this column isn't blank (but could be any other value)?"
Why not just look for a row match from that field backward? Seems to me it would just shift things by a column, and in fact, this is exactly what you're doing in A2 anyway, since there's nothing before A. So matching on duplicate rows for example, D2 would contain basically the same information as your example has in C2.
To look for duplicates across fields, you could use something like this formula that would go in C2: =IF(SUMPRODUCT((A3:A15=A1)*1,(B3:B15=B1)*1,(C3:C15=C1)*1)>1,1,0)
In D2, you'd copy that formula and add (D3:D15=D1)*1, etc.
is it possible to transpose rows to columns with extra dimensions??
imagine table:
dimension | data 1 | data 2 | data 2
---------------------------------------
test | a | b |
dummy | c | e | x
user | a | d |
john doe | v | |
I need to get this:
dimension | data
-------------------
test | a
test | b
dummy | c
dummy | e
dummy | x
user | a
user | d
john doe | v
Is there any built-in function? Or do I need to use macro?
Obviously this is more straightforward with VBA, though it can be done using worksheet formulas along, viz:
Assuming your source table is in A1:D5 (with headers in row 1), enter this array formula** in F2:
=IF(ROWS($1:1)>COUNTIF(B$2:D$5,"<>"),"",INDEX(A$2:A$5,MATCH(ROWS($1:1),1+MMULT(0+(ROW(B$2:D$5)>TRANSPOSE(ROW(B$2:D$5))),MMULT(0+(B$2:D$5<>""),TRANSPOSE(COLUMN(B$2:D$5)^0))))))
Copy down until you get blanks for the results.
Then enter this formula in G2:
=IF(F2="","",INDEX(INDEX(B$2:D$5,MATCH(F2,A$2:A$5,0),),COUNTIF(F$2:F2,F2)))
Copy down as required.
Note that this set-up assumes that it is not possible for a given dimension to have blank entries in between non-blank entries within the data columns, for example data1 and data3 are non-blank but data2 is blank. This is the case for the data you provided so seems like a fair assumption.
Regards
**Array formulas are not entered in the same way as 'standard' formulas. Instead of pressing just ENTER, you first hold down CTRL and SHIFT, and only then press ENTER. If you've done it correctly, you'll notice Excel puts curly brackets {} around the formula (though do not attempt to manually insert these yourself).
I've 2 columns A and B. A contains names and B contains the count of those names till that record as shown below.
-----------------------------------
| A | B |
-----------------------------------
1 | Fruits | 1 |
2 | Flowers | 1 |
3 | Fruits | 2 |
So, want to have a formula for this. Expecting an array formula. Even if an array formula is not possible, a general formula
Attached a spreadsheet so that it can be explained better.
https://docs.google.com/spreadsheets/d/1wlWqdFwgv90s50iP-bXXBHciyualohj610qFiSatcmQ/edit#gid=1997586177
You do not need an array formula, and I would avoid them when possible. You can accomplish your task with
=COUNTIF(A$1:A1,A1)
Where A1 if the first value in the column of values you want to count. The $ allows you to anchor the top of your COUNTIF range while leaving the bottom dynamic.
In a google spreadsheet you may want to try:
=ArrayFormula(iferror(SORT(ROW(A1:A),SORT(ROW(A1:A),A1:A,1),1)-MATCH(A1:A,SORT(A1:A),0)-ROW()+2))
Example sheet
How can I sum cells in odd/even rows only using R1C1?
I tried to follow this example. So suppose you have a table like this:
| 1 | 6 |
| 2 |
| 3 |
Then value 6 is the result of a formula:
=SUM(IF(MOD(ROW(RC[-1]:R[2]C[-1]),2)=1,RC[-1]:R[2]C[-1],0))
Even though it should give 4. What am I doing wrong?
If you enter it as an array formula with Ctrl-Shift-Enter, it will produce the desired result.
I was sent an excel document in the following format:
A | B |
1 | abc |
| def |
2 | abc |
| def |
| ghi |
3 | abc |
| def |
So basically I have the first column which contains ordered numbers every couple of rows. I want to insert a row e.g. between 2 and 3, so that the new row will be numbered 3, and the rows below it are updated accordingly i.e. 3 becomes 4, 4 becomes 5 and so on.
I don't really use excel, but I am curious if there is there an easy way of doing this?
In A1, enter the following formula:
=IF(MOD(ROW(A1),2)=1,(ROW(A1)+1)/2,"")
And copy that formula down to the bottom of the range. Each time you insert a new row, you will need to manually copy the formula to the inserted row's first cell.
Is there a pattern in the b column, to distinguish if you need to jump to the next number?
if so use:
in cel A2 and further:
=IF(B2 = "abc",A1+1,A1)
With conditional formating, hide the repeating numbers: =A2=A1