Last week, Our of curiosity and fun I asked you “how long have you been using Excel?“.
I was overwhelmed by the response we got to this simple question. More than 437 people responded with their comments, stories and enthusiastic responses. Thank you so much.
It would taken me more time to make the charts and understand the data. But thanks to Hui, who volunteered to tabulate all the survey data in a simple CSV. He also made an interesting dynamic dashboard from this data-set so that you can search and visualize matches. More on this below.
First the data:
We had 437 responses to the poll. While this is no way a good representation of all the 300 million Excel users out there, I would say this is a pretty good sample of Chandoo.org readers.
The key statistics are,
- Median Excel age is 14 years
- Average is 13.2 years
- Minimum is 6 months
- Maximum is 26 years (Rod Reed, Haseen I Alam and Jack Nefus)
Message #1: Excel Teens & Tweens are a majority
When I ran the survey, I thought, a majority of people would be in the Excel age group of 3-10 years. But I was surprised to say the least when I saw the data. More than 45% of the respondents have been using Excel for 11 years or more.
Chart – Excel Age distribution
What this means – possible explanations
- Biased data set (!?!): Since people who started using Excel just a few years ago tend to be not so serious about it, they may not have responded to the survey or neglected it. On the other hand, people who have been using Excel for more than a 10 years tend to be more passionate about it and thus they are active on sites like chandoo.org. So they are prone to responding to surveys or indulging in discussions.
- Excel user base shrinking: With the launch of drag-and-drop analysis tools like Tableau and cheap alternatives like Google docs, Open Office and Zoho, may be Excel user base is shrinking. This could be the reason behind such heavy concentration of 10-19 year user base.
Message #2: Excel 95 and 97 are very popular versions
I wanted to understand how the year on which users started using Excel correlated with Excel releases. So I flipped the chart and plotted Number of people by Year. Then I overlaid Excel releases as noted in Excel history time-line chart. Here is what I got,
Chart – Year people started using Excel by Number of people
What this means – possible explanation
- The big spikes in data coincide with releases of Excel 95 and 97. In fact, you could notice that a large chunk of users (~30%) have started using Excel between 1995 and 1998. We can attribute this to features like VBA (introduced in 1993), Windows 95 launch and spreading of concepts like MIS, Business Intelligence, enterprise databases and business analysis.
Note: this could just be a coincidence.
Additional Charts prepared by Hui:
Hui, our guest author and resident Excel Ninja, prepared an impressive dynamic dashboard from this data set. Using this dashboard, you can search for a name or year or age and highlight matches and do some fun analysis (like the distribution of names by first letter of first name) etc.
Few sample charts from Hui’s workbook:
Download Excel workbooks with this analysis:
- Click here to download my workbook with both the charts above and associated formulas etc.
- Click here to download Hui’s dynamic dashboard workbook
- Click here to download just the data (CSV format) so that you can do your own analysis.
Open Challenge to you – Visualize the Excel Age survey Data
Go ahead and download the data here. Make a chart or set of them so that we all can understand the data better.
Excel Techniques used in my charts:
- Generating Frequency distributions for a histogram using FREQUENCY Formula
- Box plot with quartiles overlaid on a regular column chart (more on box plots)
- Text boxes with fill color to create visual segments by age
- Labels on a dummy series (on secondary axis) to show the Excel versions, much like project milestone time-line chart
If you like this post, you will love,
- Visualization of last visible cell in Excel survey
- Visualizing survey results in a panel chart – Excel example
- Want to create similar charts and work with data like a ninja? Join my Excel School online training program
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.