Last week, I asked my email newsletter readers to submit “one data analysis problem you are struggling with”. We called it BYOD – Bring your own data. More than 100 people have emailed various interesting (and often very difficult) problems. This week (between 16th of February to 20th of February), let’s take a look at some of these problems and solve them.
This problem is sent by Robot Mak.
Who is the most consistent of all?
Imagine you are a category manager at a large e-commerce company. Your site offers various products, but you don’t really make these products. You list products made by other vendors on your site. Every day, these vendors would send you invoices for the amount of product they have sold. Here is a snapshot of such invoices.
Looking at this list, you have a few questions.
- Who is the best seller?
- Who is the most active seller?
- Who is the most consistent seller?
- Which seller has fewest invoices?
Let’s go ahead and answer these using Excel. Shall we?
But first, what is consistency?
Consistency is the kind of word that means different things to different people. So when we analyze a set of data to find most consistent item, the first thing we need is a consistent definition of consistency.
Let’s look it up in the dictionary.
con·sis·ten·cy: Reliability or uniformity of successive results or events
The keyword is uniformity. So in our case, we can say a seller is consistent, if they are sending invoices fairly regularly.
We have 11 days of data in the data-set.
We can calculate consistency % for a seller using this:
=number of days on which invoice is sent / 11
So who would be most consistent?
Let’s say 2 sellers have sent invoices on each of those 11 days. Then who is most consistent? Both of them have consistency = 100%.
May be we can calculate weighted consistency %?
Weighted consistency?!?
Since for this e-commerce business, the most important factor is revenues (well, it should be profits, but we don’t have that data here), we can calculate weighted consistency by adding a fraction that depends on the value of total invoice amount.
Something like this:
=consistency % + (0.000001)*rank of seller based on invoice amount in ascending order
note: if your data has more than 1000 sellers, multiply with a smaller number like 0.00000001
Alternative ways to figure out weights:
Instead of revenue rank, we can use below alternatives too:
- Standard deviation of invoice amounts per day
- Standard deviation of number of invoices per day
- Rank of total invoice count in ascending order
Option 1. Using Pivot Tables
The easiest way to answer all the questions is to use Pivot Tables. Just follow below steps:
- Insert a pivot table from the invoice data.
- Then add “Date” to row label area
- Add “Seller” to column label area
- Add “value” to values area
- Just looking at the below report, we can answer questions 1 & 4
- To answer question 3 (most consistent seller), we have to see which sellers have invoices against maximum number of dates. Both SELLER2 & SELLER6 qualify. Since SELLER6 has higher amount, we can say she is most consistent (based on our definition of most consistent above)
- To answer question 2 (most active seller), replace “value” with “reference” in pivot table and find out the seller with maximum count
Option 2. Using formulas
While the pivot table approach works, it is ad-hoc. That means, we can’t extract the names of sellers automatically. We can use Excel formulas to answer all these questions elegantly.
Let’s assume all the data is in a table named sales
In your workbook, calculate all of these:
Now we just need a few doses of INDEX+MATCH formulas to answer the questions.
[Related: How to count unique values in a range? | Using SUMPRODUCT formula]
Who is the best seller?
=INDEX($H$12:$H$20,MATCH(MAX($I$12:$I$20),$I$12:$I$20,0))
Note: Column H has the seller names & I has the seller amounts
Who is the most active seller?
=INDEX($H$12:$H$20,MATCH(MAX(J12:J20),J12:J20,0))
Note: Column J has invoice count
Who is the most consistent seller?
=INDEX($H$12:$H$20,MATCH(MAX(M12:M20),M12:M20,0))
Note: Column M has weighted consistency %
Who is the seller with fewest invoices?
=INDEX($H$12:$H$20,MATCH(MIN(J12:J20),J12:J20,0))
Download Example Workbook
Click here to download example workbook with all these calculations. Examine the formulas & pivot table to learn more.
How do you measure consistency?
I will be honest. This is the first time I calculated consistency. But I find it interesting. Consistency can be used to understand your data better & make informed decisions. Few common situations where it can really help,
- Identifying consistent customers to reward them
- Finding consistent assembly line in a set of them
- Optimizing re-ordering pattern of inventories based on how consistently orders are placed
What about you? Do you measure consistency of your data? What techniques do you use? Please share your techniques & tips in the comments section.
129 Responses to “Write a formula to check few cells have same value [homework]”
=NOT(STDEV(A1:A4))
this also works for large ranges of numerical values (but not for text)
@Arie
Nice formula Arie
Except that it doesn't work for Text values
I'll submit
=COUNTIF(A1:A4,A1)=COUNTA(A1:A4)
which works for Numbers and Text
and answers the two bonus questions as well
This is waaay more elegant than my solution. Nice one :).
I had =NOT(COUNTIF(A1:A4,A1:A4)-COUNTA(A1:A4)), somehow I keep forgetting we can use more than one "=" sign on a given formula :-/
Hi
Works for numbers, text and logical values on a range from A1:An.
=COUNTIF(A1:An,A1)=ROWS(A1:An)
well if you name the range, you could use following:
=IF(SUMPRODUCT(1/COUNTIF('range','range'))=1,1,0)
Hello lockdalf
The IF()-part is not necessary.
=SUMPRODUCT(1/COUNTIF(‘range’,'range’))=1
Not Working for =IF(SUM($C$1:$F$1)=0,"",SUM($C$1:$F$1)) in cell A1 to A4
My solution is a, perhaphs slightly complex, array formula as follows:
{=IFERROR(AVERAGE(IF(ISBLANK(A1:H1),9999,SUBSTITUTE(A1:H1,A1,9999)*1))=9999,FALSE)}
Assuming there is a value (numerical, text, logic etc) in cell A1, this formula will work - and it will 'ignore' any cells that are 'blank' within the range A1:H1 (which can be extended to the required size).
Breaking the formula down, the SUBSTITUTE(A1:H1,A1,9999) replaces all values (be it text / numerical) in the range A1:H1 that MATCH the value of cell A1 with the number 9999 (this should be changed to any number that WON'T APPEAR IN THE RANGE).
These values are then multiplied by 1 (as SUBSTITUTE results in a text answer).
Wrapping this in an IF(ISBLANK(A1:H1),9999,.........) formula takes care of any blank cells, setting them to this default value of 9999 also - this allows you to set the formula up once for a large range and then not have to alter as more data comes in.
An Average is then taken of all these values - if all cells that contain values are the same, the average will come back to 9999.
If all values are numerical but some differ, the average will differ from 9999 and will result in a FALSE answer. If some / all of the values are text and some differ from that in cell A1, the AVERAGE function will result in an Error, but in these instances the Match needs to return FALSE, hence the IFERROR function.
Sure there's a simpler way to do this though!!
`{=IF(AND(COUNTA(RANGE)-SUM(--ISNUMBER(FIND(UPPER(FIRST ELEMENT IN RANGE),UPPER(RANGE))))=0,LEN(FIRST ELEMENT IN RANGE)=MAX(LEN(RANGE))),TRUE,FALSE)}`
so if your data was in Column 1 and began in A1, you'd use
`{=IF(AND(COUNTA($1:$1)-SUM(--ISNUMBER(FIND(UPPER($A$1),UPPER($1:$1))))=0,LEN($A$1)=MAX(LEN($1:$1))),TRUE,FALSE)}`
This will work for strings and things, if you want it to be case sensitive (I don't), just remove the UPPER() part.
What this does:
`COUNTA($1:$1)`
tells you how many entries you're looking at over your range (so we can work with an undetermined size).
`--ISNUMBER()`
ISNUMBER will return TRUE or FALSE depending on if the value inside is a number or not. the -- part converts TRUE/FALSE in to 1 or 0.
`UPPER()` OPTIONAL
converts the value in to upper case. If passed a number it changes it to text format. This is what stops it from being case sensitive.
`FIND($A$1,$1:$1)`
will return a number if A1 is contained in each cell containing an entry in column 1.
`LEN($A$1)=MAX(LEN($1:$1)`
checks that all elements are the same length. This is needed to avoid partial matches (without it, if A1 contained zzz and A2 contained azzza it would flag as true).
REMEMBER this is an array formula, so enter with ctrl+shift+enter.
{=MIN(--(A1=OFFSET(A1,,,COUNTA(A1:A4))))}
Gives 0 if false and 1 if true
=COUNTIF(A:A,A1)/COUNTA(A:A) = 1
This meets both bonus requirements and is dynamic. Keep adding more contents in column A and it will include these automatically.
I like this a one a lot. I would make one small change by inserting a table for my data range. Makes it dynamic without selecting the whole column
=IF(COUNTIF(tableName[colName],A2)/COUNTA(tableName[colName])=1,TRUE,FALSE)
For only Numeric values
=MAX(A:A)=MIN(A:A)
Awesome!
=(A1=B1)*(B1=C1)*(C1=D1)
Case sensitive.
=SUMPRODUCT(0+EXACT(A1:A4,A1))=COUNTA(A1:A4)
Regards
I'd use this
=COUNTIF(range,INDEX(range,MODE(MATCH(range,range,0))))=COUNTA(range)
It takes Hui's formula but ensures that the test value for the countif is the value or string that is most common in the range. Just in case you get a false but the problem is just with your test value being the odd one out.
=SE(E(A1=A2;A1=A3);SE(E(A1=A4;A2=A3);SE(E(A2=A4;A3=A4);"ok")))
SE = IF
E = AND
Seems you could shorten it with
=AND(A1=A2,A1=A3,A1=A4)
Bonus question 1 & 2
Array formula: {AND(A1=A1:AN)}
This will test all cells in range, including text and numbers.
Cheers
A very simple solution uses Excel's Rank function. Insert in B1 = Rank(A1, $A$1:$A$4). Copy down this formula to B4. If the answers in B1 thru B4 are all 1, the values are equal. For an open range of cells, label the range of input (example "TestData") and place the label in the funtion (= Rank(A1, TestData) then copy down to an equivelent length of rows as the range.
=IF(SUM(A1:A4)/COUNT(A1:A4)=A1,TRUE,FALSE)
=IF(SUM(A1:D1)/4=A1,"True","False")
I enjoy your emails. I have learned a lot from them. Thank you for what you do.
.
{=PRODUCT(--(A1=A1:A4))}
.
Change A4 to An.
Greate
{=PRODUCT(- -(A1=A1:A4))}
=IF((SUM(A1:A4)/COUNT(A1:A4))=A1,"TRUE","FALSE")
I would use the formula which is mentioned below:-
=IF(PRODUCT($A:$A)=A1^(COUNTIF($A:$A,A1)),"Yes","No")
At last a homework assignment that I could answer on my own. And I even understand some of the elegant answers from other readers this time.
My solution was to nest IF statements:
=IF(A4=A3,IF(A3=A2,IF(A2=A1,TRUE,FALSE),FALSE),FALSE)
This satisfies bonus question 2 but I think the structure makes it impossible to modify this solution to satisfy bonus question 1. And I wouldn't want to use this strategy to compare very many values...
This answers all of your questions:
=PRODUCT(--(INDIRECT("$A$1:$A$"&$B$1)=$A$1))
where column A contains the values and $B$1 has the number of rows to assign to last A-cell.
Sorry, forgot the braces:
{=PRODUCT(–(INDIRECT(“$A$1:$A$”&$B$1)=$A$1))}
=IF(A1=A2:A2=A3:A3=A4>1,"TRUE","FALSE")
=IF(A1=A2:A2=A3:A3=An>1,"TRUE","FALSE")
=SUM(HELLO, A1)
{=IF(SUM(IF(A1:A4=A1,0,1))=0,TRUE,FALSE)}
This will work for numbers or text, and will work for any number of cells (A4 would just be An)
Here's another alternate, assuming values in cells a1:d1
=IF((A1*B1*C1*D1)^(1/COUNT(A1:D1))=AVERAGE(A1:D1),1,0)
{=IF(AND($A$1:$A$4=OFFSET(A1,0,0)),1,0)}
=SUM(IF(FREQUENCY(MATCH(A1:A4,A1:A4,0),MATCH(A1:A4,A1:A4,0))>0,1))
REVISED FORMULA
=IF((A1=A2)*AND(A1=A3)*AND(A1=A4),"TRUE","FALSE")
Regards
=IF(SUMPRODUCT(--(A2:A5=A2))/COUNTA(A2:A5)=1,1,0)
- should be --
I would use something like this: =COUNTA(A1:A4)=COUNTIF(A1:A4,A1)
You can even do a whole range and as you enter data into the range it tells you if they all match. Going down to row 5000: =COUNTA(A1:A5000)=COUNTIF(A1:A5000,A1).
Thanks,
B
Just saw Hui response. I really did come up with this and didn't just copy his.
{=SUM(--(A1:A101=A1))=(COUNTA(A1:A10)+COUNTBLANK(A1:A10))}
For numeric values:
=(OFFSET(list,,,1,1)=AVERAGE(list))
where list = A1:A4
I need to retract my own post here guys.
It is WRONG! Let me explain.
Suppose we have
A1 = 1
A2 = 0
A3 = 2
then Average = 1 and OFFSET(list,,,1,1) = 1
so 1 = 1 but all the elements are NOT equal.
correction
{=SUM(--(A1:A10=A1))=(COUNTA(A1:A10)+COUNTBLANK(A1:A10))}
=IF(A1=B1,IF(B1=C1,IF(C1=D1,TRUE,FALSE),FALSE),FALSE) ....
=COUNTIF(OFFSET($A$1,0,0,COUNTA($A:$A),1),$A$1)=ROWS(OFFSET($A$1,0,0,COUNTA($A:$A),1))
I have a little more flexible approach. Suppose the value of 'n' is known. There is a possibility that only some of the cells in a row are filled up. For example if n = 10, then in a row, A1 to A10 must be compared. But in case only cells upto A7 are filled up. The formula thus has to adapt accordingly. Below formula does that:
=COUNTIF(INDIRECT(ADDRESS(ROW(),1)&":"&ADDRESS(ROW(),COUNTA(A1:J1))),A1)=COUNTA(INDIRECT(ADDRESS(ROW(),1)&":"&ADDRESS(ROW(),COUNTA(A1:J1))))
In A1:A100 is word/number
In B1 is word/number we look
C1=MAX(FREQUENCY(IF(A1:A100=B1,ROW(A1:A100)),IF(A1:A100<>B1,ROW(A1:A100)))) array formula
We can use an array formula
{=PRODUCT(--(A1:An=A1))}
OR if we want n variable
{=PRODUCT(--(INDIRECT("A1:A"&COUNTA(A:A))=A1))}
Just as an add on...
The range could be 2D as well
{=PRODUCT(–(A1:Zn=A1))}
{=AND(A1=A2:An)}
I would use this one (simlpe)
=(COUNTA(A:A)=COUNTIF(A:A;A1))
try this
=MAX(A1:A4)=MIN(A1:A4)
Olso try this
{=SUM(RANK(A1:A10,A1:A10))=COUNT(A1:A10)}
Please notice it is an Array Formula
Dear All,
i used that formula
{=IF(COUNTIF(A1:A4,A1:A4)=COUNTA(A1:A4),TRUE,FALSE)}
Love the variety of responses.
=MAX(A1:A4)=MIN(A1:A4)
and
=COUNTA(A1:A4)=COUNTIF(A1:A4,A1)
will return true if the input range has blank cells
My personal fave is the array formula {=AND(A1=A1:A4)}. Short and sweet, and easy to read. Blank cells will tally as a mismatch.
A close second is
=SUMPRODUCT(1/COUNTIF(A1:A4,A1:A4))=1
which will throw an error if blanks are present.
=PRODUCT(B1:D1)=B1^COUNT(B1:D1)...will return TRUE or FALSE
Dear Sir,
My answer is =exact(a2,a1)
=IF((a1=a2=a3=a4),1,0)
4 equal values gives me a 0 ???
Hello Chandoo,
We can also use Conditional Formatting......
For Numerics..
=SUM(A1:AN)/A1=COUNT(A1:AN)
results in True/False.
=AND(IF(A1=B1,1,0),IF(B1=C1,1,0),IF(C1=D1,1,0))
=AND(A1=A2:A4) array entered
Generic
=AND(A1=A2:An) array entered
=--(COUNTIF(A1:A4,A1)=COUNTA(A1:A4))
will give value as 1 or 0
Hi there, here's a simple formula to determine not only whether all 4 cells (A1 --> A4) are equal, but also whether any of the cells are equal and identifies which cells they are ...
=COUNTIF($A$1:$A$4,A$1)*1000+COUNTIF($A$1:$A$4,A$2)*100+COUNTIF($A$1:$A$4,A$3)*10+COUNTIF($A$1:$A$4,A$4)*1
A result of 1111 means no cells are equal, 4444 means all cells are equal, 1212 would mean there are 2 cells the same & they are in A2 & A4, etc
=((A1=B1)+(A1=C1)+(A1=D1))=3
Obviously doesn't cover bonus question 1, but does so for q2 🙂
If formula
=MIN(A1:A4)=MAX(A1:A4)
Try this formula
=IF(COUNTIF(A1:A4,A1)-ROWS(A1:A4)=0,"True","Flase")
I used the Swiss knife of excel: SUMPRODUCT, works for numeric as well as for non-numeric cell content and A1:A4 is obviously easily changed to any range.
=IF(SUMPRODUCT(--(OFFSET($A$1:$A$4,0,0,ROWS($A$1:$A$4)-1,1)=OFFSET($A$1:$A$4,1,0,ROWS($A$1:$A$4)-1,1)))=ROWS($A$1:$A$4)-1,TRUE(),FALSE())
All of the individual non-array formulas (didn't test the array ones) have one flaw or another - mostly specifically if all the columns are blank, the result would still be false.
Another formula in the comments worked for these but didn't work for when all columns had "0.00" in them. My solution was to OR the two. If H3 through H149 have your values, then this is what worked for me:
=IF(OR(COUNTIF(H3:H149,H3)=COUNTA(H3:H149),SUMIFS(H3:H149,H3:H149,1)=COUNT(H3:H149)),IF(H3="","Blank",H3),"")
This solution puts "Blank" if all the rows are blank, otherwise, it puts whatever the value that's in all of the rows - "0.00" or whatever.
Thanks for all the answers!
I used a nested if statement which also showed, via the false message, the first instance of cells which were not equal for the cells a1 to a5.
=IF(A1=A2, IF(A2=A3, IF(A3=A4, IF(A4 = A5, "True","False A4"), "False A3"), "False A2"))
Hi,
First, let me begin by saying, I am a big fan of all your posts and read your emails, mostly on the same day as you send them. I have not replied as much as I wanted to.
This is my first attempt at answering a question on your post
I came up with a simple check which will test if all values in a range A1:An are same or not
Assuming range you want to check is A1:A10,
In Cell B1, insert the formula
=IF(COUNTIFS(A1:A10,A1)=COUNTA(A1:A10),"All cells are same","All cells are not same")
The idea I applied is counting total number of non-blank cells and then counting the number of cells which match cell A1. If these are same, then it means
a) all cells have the same value! (All can be blank, then both counts will be zero)
I am working on finding the range automatically 🙂
Can extend this into VBA and use InputBox etc to generate some user interaction
Thanks
Shailesh
=IF(COUNTIF(A1:A4,A1)=COUNT(A1:A4),TRUE,FALSE)
For homework & Bonus Question 3
=IF(AND(A1=A2,A2=A3,A3=A4),1,0)
=IF(SUMIFS(A12:A15,A12:A15,1)=COUNT(A12:A15),1,0)
One possible solution could be =+IF(COUNTIF(A1:A4,A1)-COUNT(A1:A4)=0,1,0)
where A1:A4 is data range which can be a dynamic range and the formula can be modified accordingly.
Rgds,
Sanjeev Sawal
I got the right result with this one:
=IF(A1=B1;IF(C1=D1;IF(B1=C1;1;0);0);0)
=and(a1=a2,a1=a2,a1=a3)
ANSWER FOR bONUS 1
=MAX(A1:A10)-MIN(A1:A10)
=AND(A1:A3=A2:A4)..Confirm with Ctrl+Shift+Enter (As as array formula). Works well for Text values and large range of values as well.
suppose cells contain 2 values ==== Yes | no
formula :
1
=counta(a1:a4)=countif(a1:a4,"yes")
It will return True or False.
2
=IF((COUNTA(A1:A4)=COUNTIF(A1:A4,"yes")),"Same value","Mis-match")
it will return Same Value OR Mis-match.
Hope you like it.
Regards
Istiyak
Also can use this formula
=IF(AND(A1=A2,A1=A3,A1=A4),"1","0")
Let say the values are in the range $B$1:$E$1, then the formula is:
If(sumproduct(--($B$1:$E$1=$B$1))=CountA($B$1:$E$1);1;0)
Please check that:
* $B$1 was used as pivot value and could be randomly selected
* It works well if parenthesis is omitted for values "1" and "0"
* This formula applies also to "n-values" and non-numeric values (text, logical, etc.)
Regards,
A
This formula is equivalent to
If(CountIF($B$1:$E$1,$B$1)=CountA($B$1:$E$1),1,0) mentioned before...
Hi, first time trying to solve a probleme.
New at this but really enjoying Chardoo.org
Think the following will work in all 3 questions
{=IF(SUM(IF(A1=$A:$A,1,0))=COUNTA($A:$A),TRUE,FALSE)}
Regards
Jorrie
use below formula for to get True / False
=COUNTA(A1:A4)=COUNT(A1:A4)
and use below formula for to get {1/0} or {match / Mismatch}
=IF(COUNTA(A1:A4)=COUNT(A1:A4),{1,0} or {match,Mismatch})
=IF(COUNTA(A1:A4)=COUNT(A1:A4),1,0) or =IF(COUNTA(A1:A4)=COUNT(A1:A4),"Match","Mismatch")
[...] Last week in Write a formula to check few cells have same value [Homework], [...]
Hi, sorry if it's repeated, this array formula works well with numbers or text, the range can easily be dynamic: {=AND(A1:An=A1)} Now, after three days, I understand a lot more about array formulae, thanks?
=IF(AND(A1=A2,A2=A3,A3=A4),"TRUE","FALSE")
What if there are not only four cells to compare but An?
how will I determine if there is one cell that is not equal from any other cells?
=IF(COUNTA(A1:A4)=COUNT(A1:A4),1,0)
=IF(COUNTA(A1:A4)=COUNT(A1:A4),”Match”,”Mismatch”)+
=IF(AND(A1=A2,A2=A3,A3=A4),”TRUE”,”FALSE”)
=iF(AND(EXACT(C15,D15),EXACT(E15,F15)),"Match","Mis-match")
how this formula works in excel (B4+E4)/50*20
I'm a little late to the party, but I figured I'd post anyways.
For numbers only:
=NOT(VAR.P(A1:An))
The formula given below will fulfill the all criteria including bonus questions
=IF(COUNTA(A:A)=COUNTIF(A:A,A1),"True","False")
REGARDS
=IF(MATCH(A1,A2:A4,0),TRUE,FALSE)
=IF(COUNTIF($A$1:$A$4,A1)>1,"true","false")
=IF(COUNTIF(A:A,A1)>1,"true","false")
@Naveen
You can simplify your formulas as below:
=COUNTIF($A$1:$A$4,A1)>1
=COUNTIF(A:A,A1)>1
Excel will return True or False without the need for the If() function
Hi ,
This question is similar to the one in the post.
I have Text values in cell A1 and A2.
If A1 = A2, update 10 in cell A3 , else 0.
Is there any formula for this. I am new to VB and hence do not have much knowledge. Eager to learn!!
Thanks in advance !!!
=AND(A1=A2,A1=A3,A1=A4)
also =IF(AND(A1:A4=A1),TRUE,FALSE)
my question is
finding the total of values in cell A1,A2,A3,A4,andA5
@Norine
Is it as simple as =Sum(A1:A5)
One can use "IF, AND" formula.
=IF(AND(A1=A2,A2=A3,A3=A1),"True","False")
=COUNTIF(A:A,A1)=COUNTA(A:A)
Enter array formula like, = IF($B$16:$B$21=$B$17:$B$22,"Yes","No")
Sorry, Enter a array formula like this: =IF(AND($B$16:$B$21=$B$17:$B$22),"Yes","No")
=IF(AND($E$5=$E$6,$E$6=$E$7,$E$7=$E$8),"true","flase")
it can work try this one
A question for you
sheet 1 table A1:C10
What formula in sheet 2 A1 will give me what is entered in the table sheet 1 A1:C10
There is usually only one entry made in the table but if you can supply the answer to 1 or 2 entries I would be grateful
=max(A:A)=min(A:A)
FOR TEXT DATA
=COUNTIF(A1:A5,a1)=COUNTIF(A1:A5,"*?")
FOR VALUE DATA
=COUNTIF(A1:A5,A1)=COUNTA(A1:A5)
Both Return TRUE or FALSE
=if({sum(1/countif($A$1:$A$n,A1:An)}=1,"All Same","Not All Same")
I use formula A1=B1 and get value of TRUE / FALSE in C1. I had dragged this formula for 10 rows. Now in cell D2 i tried to put formula..
=if(and(c1="False", c2="true"), "conflict", "no conflict")
but even when the condition is true i am still getting no conflict.
Can you please advice?
thanks,
Manish
@Manish
Remove the " from around True and False
=if(and(c1=False, c2=True), "conflict", "no conflict")
In C1 and C2 you have a Boolean expression and it evaluates as True/False
These are not text, although they do appear as Text, they are not 1/0 although they sometimes behave as 1/0, they are in fact Boolean values True/False
So in your example you can simplify it as
=If( And( Not(C1), C2), "conflict", "no conflict")
=SUMPRODUCT(MATCH(A1:A4,A1:A4,0))=COUNTIF(A1:A4,A1)
Answer to both bonus questions 2 and 3:
=COUNTIF(A1:An,A1)=COUNT(A1:An)
answer to all questions:
={IF(ISERROR(MATCH(FALSE,((A1:An)=$A$1),0)),"same","different")}
this works with numeric, non-numeric, and blanks:
COUNT will not count numeric
COUNTA will count blanks as one
=SUMPRODUCT(1/COUNTIF(B1:J1,B1:J1))
This will tell you how many unique values exist in the selected range. Text or numeric mixed.
{=IF(AND(A1:A9=A2:A10),"EQUAL","NOT EQUAL")}
this is an array formula, insert it with CSE.
COUNTA/UNIQUE
=SUMPRODUCT(A:A)/A1=COUNT(A:A)
=COUNTIF(A1:A4,A1) = COUNTA(A1:A4)