CP024: Customize Excel to boost your productivity

12 Responses to “29 Excel Formula Tips for all Occasions [and proof that PHD readers truly rock]”

1. Peder Schmedling says:

   August 24, 2009 at 11:22 am

   Some great contributions here.
   Gotta love the Friday 13th formula 😀

   Reply
2. Aires says:

   August 24, 2009 at 3:42 pm

   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... 🙂 )

   Reply
3. John Franco says:

   August 24, 2009 at 5:28 pm

   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)

   Reply
4. Chandoo says:

   August 25, 2009 at 6:07 am

   @Peder, yeah, I loved that formula
   @Aires: Sorry, I misunderstood your formula. Corrected the heading now.
   @John.. that is a cool tip.

   Reply
5. Eric Lind says:

   September 13, 2009 at 2:01 pm

   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~

   Reply
6. Balaji OS says:

   September 23, 2009 at 1:45 am

   Fantastic stuf..One line explanation is cool.
   Thanks to all the contributors

   OS

   Reply
7. Locke says:

   October 30, 2009 at 3:36 am

   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)

   Reply
8. Johan says:

   February 11, 2011 at 12:31 am

   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.

   Reply
9. anjali says:

   July 31, 2011 at 6:58 pm

   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

   Reply
10. Hui... says:

    July 31, 2011 at 11:52 pm

    @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

    Reply
11. sajid says:

    November 9, 2013 at 8:04 am

    kindly share with me new forumulas.

    Reply
12. Biswajit Baidya says:

    July 8, 2015 at 10:47 am

    How to convert a figure like 870.70 into 870 but 871.70 into 880 using excel formula ? Please help.

    Reply

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