I have a table of ID values with multiple entries for different dates, How would i go about finding the max date for each ID? Preferably having the answer in a dynamic array as my table of values changes depending on which data the using is parsing
cheers
You mentioned you wanted it in a dynamic array, so I suggest using UNIQUE and MAXIFS inside a LET and combining the results with the use of SEQUENCE.
Something like:
=LET(x, UNIQUE(A:A),
mycols, SEQUENCE(1,2),
IF(mycols=1, x,
MAXIFS(B:B, A:A, x)))
For example:
EDIT (a much nicer solution provided by #JvdV): =CHOOSE({1,2},UNIQUE(A:A),MAXIFS(B:B,A:A,UNIQUE(A:A)))
Related
PowerQuery/Excel:
I got table with dynamic amount of columns named Level 1, Level 2, Level 3... etc and i need to apply Table.Sort(x,Order.Ascending) to all of them in same order, as they are.
I tried to create list from Table.ColumnNames and insert it directly into Table.Sort column name parameter, but it doesnt work. I also tried to create function, that would loop thru all columns names and apply sorting to each, but my knowledge of functions in DAX is far too low for this.
Any help will be very welcomed.
Assuming you only want to sort columns whose names start with 'Level', you could use something like this:
Table.Sort(Source, List.Select(Table.ColumnNames(Source), each Text.Start(_, 5) = "Level")
Problem is straightforward, but solution is escaping. Hopefully some master here can provide insight.
I have a big data grid with prices. Those prices are ordered by location (rows) and business name (cols). I need to match the location/row by looking at two criteria (location name and a second column). Once the matching row is found (there will always be a match), I need to get the minimum/lowest price from two ranges within the grid.
The last point is the real challenge. Unlike a normal INDEX or MINIFS scenario, the columns I need to MIN aren't contiguous... for example, I need to know what the MIN value is between I4:J1331 and Q4:U1331. It's not an intersection, it's a contiguous set of values across two different arrays.
You're probably saying "hey, why don't you just reorder your table to make them contiguous"... not an option. I have a lot of data, and this spreadsheet is used for a bunch of other stuff. So, I have to work with the format I have, and that means figuring out how to do a lookup/min across multiple non-contiguous ranges. My latest attempt:
=MINIFS(AND($I$4:$J$1331,$K$4:$P$1331),$B$4:$B$1331,$A2,$E$4:$E$1331,$B2)
Didn't work, but it should make it more clear what I'm trying to do. There has GOT to be an easy way to just tell excel "use these two ranges instead of one".
Thanks,
Rick
Figured it out. For anyone else who's interested, there doesn't seem to be any easy way to just "AND" arrays together for a search (Hello MS, backlog please). So, what I did instead was to just create multiple INDEX/MATCH arrays inside of a MIN function and take the result. Like this:
MIN((INDEX/MATCH ARRAY 1),(INDEX/MATCH ARRAY 2))
They both have identical criteria, the only difference is the set of arrays being indexed in each function. That basically gives me this:
MIN((match array),(match array))
And Min can then pull the lowest value from either.
Not as elegant as I'd like... lots of redundant code, but at least it works.
-rt
I am using the following IF statement in Excel:
=IF(W41="Please Select",0,IF(W41="Plant Hire","XPH",IF(W41="Plant Sales","SPH",IF(W41="Crane Hire","XCH",IF(W41="Crane Sales","SCS",IF(W41="General X-Hire","GXH",IF(W41="Operations","XOP",IF(W41="Goods / Services","GSE",0))))))))
However it won't let me add any more IFs as it is telling me I have reached the maximum allowed. I need to add another six like so:
IF(W41="Plant","XPL",IF(W41="Whale","SWFM",IF(W41="Fire","FTH", etc
Please can someone show me what I would need to do to complete the formula?
This would be easier to do with a lookup table. List all the possible W41 values in column Y and all the corresponding codes in the same row in column Z then use this formula
=IFERROR(VLOOKUP(W41,Y:Z,2,0),0)
I have 3 tables, 1 of which I want to fill in columns with data based on the other 2. Tables are roughly structured as follows:
Table 1 (Semi-Static Data)
SubGroup Group
----------- -----------
subgroup(1) group(a)
subgroup(2) group(b)
subgroup(3) group(b)
subgroup(4) group(c)
etc.
Table 2 (Variable Data)
SubGroup DataValue
----------- -----------
subgroup(1) datavalue(i)
subgroup(2) datavalue(ii)
subgroup(3) datavalue(iii)
subgroup(4) datavalue(iv)
etc.
Table 3 (Results)
Group TotalValue
----------- -----------
group(a) totalvalue(m)
group(b) totalvalue(n)
group(c) totalvalue(o)
etc.
Where the TotalValue is the sum of all DataValue's for all subgroups that belong to that particular Group.
e.g. for group(b) ---> totalvalue(n) = datavalue(ii) + datavalue(iii)
I am looking to achieve this calculation without adding any additional columns to the Data tables nor using VBA.
Basically I need to perform a COUNTIFS where there is an additional VLOOKUP matching the subgroup criteria range to the group it belongs to, and then only summing for datavalue's that match the group being evaluated. I have tried using array formulas but I'm having issues making it work. Any assistance would be very appreciated. Thank you,
EDIT: Wanted to add some details surrounding my question. First all Google searches did not provide a suitable answer. All the links had solutions to a slightly different problem were the VLOOKUP term is not dependent on the SUMIFS criteria but rather another single static variable. Stack Overflow offered similar solutions. Please let me know if anymore details are required to make my post suitable for this forum. Thank you again.
You can use the SUMPRODUCT function to do it all at once. The first reference $B$2:$B$5 is for the Group names, the second reference $E$2:$E$5 is for the datavalues. The G2 reference is for the group names in the third table, you can enter this formula for the first reference and then drag and fill for the rest.
=SUMPRODUCT($E$2:$E$5 * (G2 = $B$2:$B$5))
Some cell references, and sample data, would be helpful but something like this might be what you want:
=SUMIF(C:C,"="&INDEX(A:A,MATCH(E5,B:B,0)),D:D)
WADR & IMHO, this is simply bad worksheet design. For lack of a single cross-reference column in Table2, any solution would have to be a VBA User Defined Formula or an overly complicated array formula (the latter of which I am not even sure is possible). The data tables are not normalized database tables you can INNER JOIN or GROUP BY ... HAVING.
The formula you are trying to achieve is akin to,
=SUMPRODUCT(SUMIF(D:D, {"subgroup(2)","subgroup(3)"}, E:E))
That only works with hard-coded values as arrayed constants (e.g. {"subgroup(2)","subgroup(3)"}). I know of no way to spit a dynamic list back into the formula using additional native Excel functions but VBA offers some possibilities.
HOWEVER,
The simple addition of one more column to Table2 with a very basic VLOOKUP reduces all of your problems to a SUMIF.
The formula in the new column D, row 2 is,
=VLOOKUP(E2, A:B, 2, FALSE)
The formula in I2 is,
=SUMIF(D:D, H2,F:F )
Fill each down as necessary. Sorry if that is not what you wanted to hear.
Thank you everyone that responded and reviewed this post. I have managed to resolve this using an array formula and some matrix algebra. Please note that I am not using VLOOKUP (this operator cannot be performed on arrays) nor SUMIFS as my title states.
My final formula looks like this:
{=SUM(IF([Table2.xlsx]Sheet1!SubGroup=TRANSPOSE(IF([Table1.xlsx]Sheet1!Group=G2,[Table1.xlsx]Sheet1!SubGroup,"")),[Table2.xlsx]Sheet1!DataValue))}
Very simply, I create an array variable that compares the Group being evaluated (e.g. cell G2) with the Groups column for Table 1 and outputs the corresponding matching SubGroups. This results in an array with as many rows as Table 1 had (N) and 1 column: Nx1. I then transpose that array (1xN) and compare it to the SubGroups column (Mx1, M being the number of rows in Table 2) and output the DataValues column for the rows that have a corresponding SubGroup (MxN). Then I perform a sum of the whole array to return a single value.
Notice that as I didn't include a value_if_false output return on either IF operators, it will just populate with FALSE in the arrays were the conditions are not met. This does not matter though for the final result. In the first IF, FALSE will not match the SubGroups so will be ignored. For the second all values FALSE passed to SUM will be calculated as 0. The more complicated question is that it grows the amount of memory required to process as we are not filtering to just have the values we want.
For this application I decided against filtering the subarray as the trade-off in resource utilization was acceptable. If the data sets were any bigger though, I would definitely try doing it. Another concern was that I did not understand fully the filtering logic that I was using based on http://exceltactics.com/make-filtered-list-sub-arrays-excel-using-small/ so decided to simplify. Will revisit this concept latter as I think it will work. I might have completed this solution but was missing transposing the array to compare properly so abandoned this route.
Just getting started in Excel and I was working with a database extract where I need to count values only if items in another column are unique.
So- below is my starting point:
=SUMPRODUCT(COUNTIF(C3:C94735,{"Sharable Content Object Reference Model 1.2","Authored SCORM/AICC content","Authored External Web Content"}))
what i'd like to figure out is the syntax to do something like this-
=sumproduct (Countif range1 criteria..., where range2 criteria="is unique value")
Am I getting this right? The syntax is a bit confusing, and I'm not sure I've chosen the right functions for the task.
I just had to solve this same problem a week ago.
This method works even when you can't always sort on the grouping column (J in your case). If you can keep the data sorted, #MikeD 's solution will scale better.
Firstly, do you know the FREQUENCY trick for counting unique numbers? FREQUENCY is designed to create histograms. It takes two arrays, 'data' and 'bins'. It sorts 'bins', then creates an output array that's one longer than 'bins'. Then it takes each value in 'data' and determines which bin it belongs in, incrementing the output array accordingly. It returns the array. Here's the important part: If a value appears in 'bins' more than once, any 'data' value meant for that bin goes in the first occurrence. The trick is to use the same array for both 'data' and 'bins'. Think it through, and you'll see that there's one non-zero value in the output for each unique number in the input. Note that it only counts numbers.
In short, I use this:
=SUM(SIGN(FREQUENCY(<array>,<array>)))
to count unique numeric values in <array>
From this, we just need to construct arrays containing numbers where appropriate and text elsewhere.
In the example below, I'm counting unique days when the color is red and the fruit is citrus:
This is my conditional array, returning 1 or true for the rows I'm interested in:
($A$2:$A$10="red")*ISNUMBER(MATCH($B$2:$B$10,{"orange","grapefruit","lemon","lime"},0))
Note that this requires ctrl-shift-enter to be used as an array formula.
Since the value I'm grouping by for uniqueness is text (as is yours), I need to convert it to numeric. I use:
MATCH($C$2:$C$10,$C$2:$C$10,0)
Note that this also requires ctrl-shift-enter
So, this is the array of numeric values within which I'm looking for uniqueness:
IF(($A$2:$A$10="red")*ISNUMBER(MATCH($B$2:$B$10,{"orange","grapefruit","lemon","lime"},0)),MATCH($C$2:$C$10,$C$2:$C$10,0),"")
Now I plug that into my uniqueness counter:
=SUM(SIGN(FREQUENCY(<array>,<array>)))
to get:
=SUM(SIGN(FREQUENCY(
IF(($A$2:$A$10="red")*ISNUMBER(MATCH($B$2:$B$10,{"orange","grapefruit","lemon","lime"},0)),MATCH($C$2:$C$10,$C$2:$C$10,0),""),
IF(($A$2:$A$10="red")*ISNUMBER(MATCH($B$2:$B$10,{"orange","grapefruit","lemon","lime"},0)),MATCH($C$2:$C$10,$C$2:$C$10,0),"")
)))
Again, this must be entered as an array formula using ctrl-shift-enter. Replacing SUM with SUMPRODUCT will not cut it.
In your example, you'd use something like:
=SUM(SIGN(FREQUENCY(
IF(ISNUMBER(MATCH($C$3:$C$94735,{"Sharable Content Object Reference Model 1.2","Authored SCORM/AICC content","Authored External Web Content"},0)),MATCH($J$3:$J$94735,$J$3:$J$94735,0),""),
IF(ISNUMBER(MATCH($C$3:$C$94735,{"Sharable Content Object Reference Model 1.2","Authored SCORM/AICC content","Authored External Web Content"},0)),MATCH($J$3:$J$94735,$J$3:$J$94735,0),"")
)))
I'll note, though, that scaling might be a problem on data sets as large as yours. I tested it on larger data sets, and it was fairly fast on the order of 10k rows, but really slow on the order of 100k rows, such as yours. The internal arrays are plenty fast, but the FREQUENCY function slows down. I'm not sure, but I'd guess it's between O(n log n) and O(n^2) depending on how the sort is implemented.
Maybe this doesn't matter - none of this is volatile, so it'll just need to calculate once upon refreshing the data. If the column data is changing, though, this could be painful.
Asuming the source data is sorted by the key value [A], start with determining the occurence of the key column
B2: =IF(A2=A1;B1+1;1)
Next determine a group sum
C2: =SUMIF($A$2:$A$9;A2;$B$2:$B$9)
A key is unique if its group sum is exactly 1
D2: =(C2=1)
To count records which match a certain criterium AND are unique, include column D in a =IF(AND(D2, [yourcondition];1;0) and sum this column
Another option is to asume a key unique within a sorted list if it is unequal to both its predecessor and successor, so you could find the unique records like
E2: =AND(A2<>A1;A2<>A3)
G2: =IF(AND(E2;F2="this");1;0)
E and G can of course be combined into one single formula (not sure though if that helps ...)
G2(2): =IF(AND(AND(A2<>A1;A2<>A3);F2="this");1;0)
resolving unnecessarily nested AND's:
G2(3): =IF(AND(A2<>A1;A2<>A3;F2="this");1;0)
all formulas in row 2 should be copied down to the end of the list