In simple words, we have to find the range that has the lookup value.
Now, the problem is similar to between formula trick we discussed a few days back, yet very different.
We all know that,
- XLOOKUP formula looks up a value in a table and returns the corresponding value in next column
- MATCH formula looks up a value and tells the position of it in a list
We can use XMATCH:
Since we just want to know which row will contain the value, we can use XMATCH as shown below.
=XMATCH(1, (B6:B15<=C3)*(C6:C15>=C3))
Ok, go ahead, I will give you a minute to soak in the awesomeness of that formula.
Are you back?, well, lets explore what this formula does.
How this works:
- C3 contains our lookup value
- B6:B15 has the lower boundary
- C6:C15 has the higher boundary
- The (B6:B15<=C3)*(C6:C15>=C3) returns a bunch of 1s or 0s. It will be 1 whenever C3 is between column B&C values and 0 otherwise.
- XMATCH will match the first 1, ie the first row that matches the range.
Or even the SUMPRODUCT
Then I thought, “may be SUMPRODUCT formula would work for situations like these?!?”
After playing for a while, I got the perfect formula for this.
- Assuming the value to be looked up is in cell
C3 - The start and end values are in
B6:B15andC6:C15respectively,
We write,
=SUMPRODUCT((B6:B15<=C3)*(C6:C15>=C3),ROW(B6:B15))-5
There are 3 portions in that formula,
(B6:B15<=C3)*(C6:C15>=C3)part: This is checking the range B6:B15 and C6:C15 to find that one set of start and end values that would contain the value in C3. The output would be a bunch of 0s with probably a single 1ROW(B6:B15)part: This just gives running numbers from 6 to 15. When you SUMPRODUCT this with above you get a single number corresponding the row in which the match occurred-5part: We reduce the output value by 5 since our value began in row 6, not row 1.
Use this to lookup date ranges too:
As you can guess, you can easily use the above SUMPRODUCT formula to lookup matching date ranges too a la vlookup for date ranges.
Download Range Lookup Example Workbook:
In the download workbook, you can find both examples (values and dates). Go ahead and download it. Play with it to understand range lookup formula better.
Click here to download the sample workbook.
Do you face range lookup problem?
Often, when working on project planning, I end up checking where a date falls between given set of start and end dates. Earlier, I used helper columns to solve such a problem. But the XMATCH (or SUMPRODUCT) solution above is much more elegant and scalable. Plus it is much more fun to write.
What about you?
Do you face range lookup problem often? How do you solve it? Share your techniques and tips using comments. Thank you 🙂
12 Responses to “29 Excel Formula Tips for all Occasions [and proof that PHD readers truly rock]”
Some great contributions here.
Gotta love the Friday 13th formula 😀
Great tips from you all! Thanks a lot for sharing! bsamson, particularly you helped me on a terribly annoying task. 🙂
(BTW, Chandoo, it's not exactly "Find if a range is normally distributed" what my suggestion does. It checks if two proportions are statistically different. I probably gave you a bad explanation on twitter, but it'd be probably better if you fix it here... 🙂 )
Great compilation Chandoo
For the "Clean your text before you lookup"
=VLOOKUP(CLEAN(TRIM(E20)),F5:G18,2,0)
I would like to share a method to convert a number-stored-as-text before you lookup:
=VLOOKUP(E20+0,F5:G18,2,0)
@Peder, yeah, I loved that formula
@Aires: Sorry, I misunderstood your formula. Corrected the heading now.
@John.. that is a cool tip.
Hey Chandoo,
That p-value formula is really great for a statistics person like me.
What a p-value essentially is, is the probability that the results obtained from a statistical test aren't valid. So for example, if my p value is .05, there's a 5% probability that my results are wrong.
You can play with this if you install the Data Analysis Toolpak (which will perform some statistical tests for you AND provide the P Value.)
Let's say for example I've got two weeks of data (separated into columns) with the number of hours worked per day. I want to find out if the total number of hours I worked in week two were really all the different than week one.
Week1 Week2
10 11
12 9
9 10
7 8
5 8
Go to Data > Data Analysis > T-Test Assuming Unequal Variances > OK
In the Variable 1 Box, select the range of data for week 1.
In the Variable 2 Box, select the range of data for week 2.
Check "Labels"
In the Alpha box, select a value (in percentage terms) for how tolerant you are of error.
.05 is the general standard; that is to say I am willing to accept a 95% level of confidence that my result is accuarate.
Select a range output.
Excel calculates a number of results: Average (mean) for each week's data, etc.
You'll notice however that there are two P Values; one-tail and two-tail. (one tail tests are for > or .05), the number of hours I worked in week two is statistically equivalent to the number of hours I worked in week one.
So here’s a way you might want to use this. You put up a new entry on your blog. You think it’s the best entry ever! So you pull your webstats for this week and compare it to last week. You gather data for each week on the length of time a visitor spends on your website. The question you’re trying to prove statistically is whether there’s an average increase in the amount of time spent on your website this week as compared to last week (as a result of your fancy new blog post). You can run the same statistical test I illustrated above to find out. Incidentally, it matters very little to the stat test whether the quantity of visitors differs or not.
Anyhow, the Data Analysis toolpack doesn't perform a lot of stat tests that folks like me would like to have access to. In those cases I have to either use different software, or write some very complicated mathematical formulas. Having this p-value formula makes my life a LOT easier!
Thanks!
Eric~
Fantastic stuf..One line explanation is cool.
Thanks to all the contributors
OS
Take FirstName, MI, LastName in access (you can fix it to work in excel) capitalize first letter of each and lowercase the rest and add ". " if MI exists then same for last name:
Full Name: Format(Left([FirstName],1),">") & Format(Right([FirstName]),Len([FirstName])-1),"") & ". ","") & Format(Left([LastName],1),">") & Format(Right([LastName],Len([LastName])-1),"<")
I teach excel, access, etc etc for a living and i have my access students build this formula one step at a time from the inside out to show how formulas can be made even if it looks complicated. Yes I know I could just do IsNull([MI]) and reverse the order in the Iif() function but the point here is to nest as many functions as possible one by one (also I illustrate how it will fail without the Not() as it is)
Extract the month from a date
The easiest formula for this is =MONTH(a1)
It will return a 1 for January, 2 for February etc.
if in a column we write the value of total person for eg. 10 if we spent 1.33 paise each person then how we get total amount in next column and the result will in round form plzzzzz solve my problem sir................... thank u
@Anjali
If the value 10 is in B2 and 1.33 paise is in C2 the formula in D2 could be =B2*C2
If the values are a column of values you can copy the formula down by copy/paste or drag the small black handle at the bottom right corner of cell D2
kindly share with me new forumulas.
How to convert a figure like 870.70 into 870 but 871.70 into 880 using excel formula ? Please help.