Today is February 29th, and that means, this year we have one more day to be awesome. So lets celebrate it in Excel style!
Lets learn 14 different ways to tell if an year is leap year, using Excel Formulas.
Why 14? because, we are awesome like that.
Why 14 methods to just find the year in cell D4 is leap year or not? Because, we all know that by learning different ways to solve a problem, we become smarter, more awesome and have more fun. So lets roll.
Before we start..,
Since all the 14 methods rely on certain calculations, I have created some names. See below:
All the names are self-explanatory, except the febDays. So lets take a look at it.
febDays formula
For one of the methods, we need to have all the dates in February in a list. If we want the first of Feb as a date, we can use =DATE(year,2,1). But we want all dates in February. That means, we need to use a list (array) in third parameter of DATE like this:
=DATE(year,2,{1,2,3,4,….,28,29})
Instead of typing all the 28/29 numbers, we can use ROW formula to generate these, like:
=ROW($A$1:$A$29) would give me a numbers from 1 thru 29.
But the problem is in many years Feb has only 28 days, and for rest, it has 29 days. So we modify the second part of row formula and use the last DAY of the Feb, like this:
=ROW($A$1: INDEX($A$1:$A$29,DAY(EOMONTH(feb1st,0))))
To get the last day of a month, we use = DAY(EOMONTH(1st date, 0))
I think you can put the rest of pieces together to solve this puzzle.
Moving on,
#1 – The year has 366 days
This is the obvious one. We use =DATE(year+1,1,1)-jan1st=366 to check if there are 366 days between January 1st of next year and this year.
#2 – February 29th is not March 1st
Because in Excel all dates are numbers, when we use a formula like =DATE(2011,2,29), Excel gives us the date of March 1st, even though we wanted 29th Day of February in 2011. So a simple leap year check is to see if February 29 is March 1st or not!
=DATE(year,2,29)<>mar1st
#3 – February has 29 days
This is another obvious test. In a leap year, February has 29 days. So=DAY(EOMONTH(feb1st,0))=29 will be true for leap years.
#4 – February 1st and March 1st are not on same day of week
In non leap years, Feb has 28 days (a multiple of 7), so both Feb and March start on same day of week. So, =WEEKDAY(feb1st)<>WEEKDAY(mar1st) will be TRUE for leap years.
#5 – Adding 365 to January 1st does not change year
Well, that is obvious too. =YEAR(jan1st)=YEAR(jan1st+365) is TRUE for leap years.
#6 – 30th Day of February is March 1st
If an year is leap year, 30th day of February [DATE(year,2,30)] is same as March 1st. So, =DATE(year,2,30)=mar1st is TRUE for leap years.
#7 – 0th Day of March is Feb 29th
In real world there is no zeroth day for any month. But in Excel, since all dates are numbers, 0th day refers to last day of previous month. So, =DAY(DATE(year,3,0))=29 will be TRUE in leap years.
#8 – April 1st and January 1st are on same day of week
In leap years, there are 91 days between January 1st and April 1st. And since 91 is a multiple of 7, both April 1st and January 1st start on same day of week. Hence, =WEEKDAY(jan1st)=WEEKDAY(apr1st) will be true for leap years.
#9 – Only 2 more months start on same day of week as January
In leap years, both April and July start on same day of week as January. (Where as in non-leap years, Only October starts on same day of week as Jan).
To test this, we will of course use the SUMPRODUCT. like this:
=SUMPRODUCT(–(WEEKDAY(DATE(year,ROW($A$2:$A$12),1))=WEEKDAY(jan1st)))=2
The portion WEEKDAY(DATE(year,ROW($A$2:$A$12),1)) gives all the first day of weeks from February to December. And then we just check how many of these are same as January 1st’s week day.
#10 – Next year’s February 1st and this year’s February 2nd are NOT on same day of week
In non-leap years, there are 364 days between February 2nd and next year’s February 1st. Since 364 is a multiple of 7, both of these days are on same day of week. Which is not the case in leap years (as the difference becomes 365). So, =WEEKDAY(feb1st+1)<>WEEKDAY(EDATE(feb1st,12)) will be TRUE for leap years.
#11 – February 1st’s day of week occurs 5 times in that month
This a bit tricky to test, but then again we have SUMPRODUCT. So, =SUMPRODUCT(–(WEEKDAY(febDays)=WEEKDAY(feb1st)))=5 will be TRUE for leap years. The name febDays has all dates in February. I think the rest is easy to understand.
#12 – February starts and ends on same day of week
29 days means both 1st and 29 are on same weekday. So, =WEEKDAY(feb1st)=WEEKDAY(EOMONTH(feb1st,0)) will be true for leap years.
#13 – Spreadsheet day (October 17) and February 1st are on same day of week
Debra, who is a well known Excel blogger & author started the whole spreadsheet day thing. She says, we should celebrate October 17 as spreadsheet day. I love that idea, mainly because, it is just 3 days before my birthday and I like celebrations. And I also like Excel 🙂 So blame her if you do not like this way of testing for leap years.
In leap years, there are 259 days between February 1st and October 17. And since 259 is a multiple of 7 (and 37), we know that they are both on same day of week. So, =WEEKDAY(feb1st)=WEEKDAY(DATE(year,10,17)) is true for leap years.
#14 – Finally, the year is divisible by 4 and if it is divisible by 100, then also by 400
Finally, we are going to test the whole “an year is leap year if it is divisible by 4 and if it is divisible by 100, then it is also divisible by 400” thing. This is a slightly tricky one to test. The formula, =((MOD(year,4)=0)*((MOD(year,100)<>0)+(MOD(year,400)=0))=1) will be TRUE for leap years and false for non-leap years.
Download Leap Year Test Workbook
Click here to download the workbook with all these 14 examples. Play with the formulas, named ranges to understand these techniques.
How do you check it is a leap year?
If you are working and you get paid on first day of a month, then one clear way of knowing leap year is that you get your salary one day later. Other than this, what method would you use to find if an year is leap year. Go ahead and be creative. Share your ideas and formulas using comments. Next leap day is 4 years away. Go
Want to learn how to Dates & Times in Excel – Read these:
If you deal with data that has a lot of date / time stuff, then understanding various Excel features in this area is a must. Read below pages to learn more.
- 10 tips on working with dates & times in Excel
- Calculate difference between 2 dates
- Find thanksgiving day for any year
- Check if 2 ranges of dates overlap
- Rolling months in Excel
- How to convert text to dates
- Even more on Excel dates & times
Want to master Date & Other Excel Formulas?
If you want to learn how various formulas in this post work and know more about everyday Excel formulas, please consider joining my Excel Formula crash course. It has detailed video tutorials on more than 40 everyday Excel formulas and teaches you all the powerful techniques to become a formula ninja.
46 Responses to “6 Best charts to show % progress against goal”
Chandoo, thanks for another interesting post.
One thing I'm missing is the question: What is progress, what does one want to know exactly?
I'm asking the question because I think of progress as not the same as "state of completion." Percentages/bars, etc., as shown above, are great to communicate state of completion, but less so for progress.
That's because project progress is how state of completion *relates to* the resources spent so far. Resources can be things like dollars spent, hours spent or project time passed. For example, 5% would be "good progress" in the first week of a one-year project, but terrible progress in the last week of the project.
The way I prefer to report progress is as a simple line chart with time on the x axis, and maybe a marking for the end point (and maybe an "ideal"/"as planned" line).
If it really must be a single number, you could go a EVA-ish route and divide the current % of completion by the current % of project time passed, which gives you a schedule performance index (1 or bigger than 1 = good; smaller than 1 = bad). For this, your suggested charts should work great!
I avoid 'progress' except where I can objectively assess progress, such as counting bricks laid or concrete poured. For intellectual work, I don't think that its possible to measure progress to completion with any reliability or credibility. I prefer to update forcasts of completion date, because that's where the effect of completion on dependent activities, deliverables and outturn value of the project is felt. This is also referred to as the 0-100 method. An activity is set at 0 complete until its actually finished, when it is set at 100% complete.
Hi Chandoo,
Great post! I have a preference towards thermometer charts too mainly because of the target/actual comparison.
Just an FYI...seems like the the screen shot for the pies #4 are under the #5 heading. Also the pies conditional formatting is something that doesn't accurately portray completion since the pies are segmented into quarters.
AND also a little trivia...those "pies" are called Harvey Balls, named after Harvey Poppel...
Chandoo,
I wonder. Is there a trick to unzipping your files?
I always seem to end up with a series of XML files rather than an XLSX.
Thanks a lot. 🙂
Eric~
Hi Chandoo,
Thank you again for this amazing help you are so resourcefull to make us little bit more amazing everyday.
When I click on the link on the page "http://img.chandoo.org/c/best-charts-for-goal-progress-comparison.xlsx" it is always bringing me to a zip file with all XML files without the XLSX file. I tried with mozilla and IE.
Thank you
[…] http://chandoo.org/wp/2014/03/10/best-charts-to-show-progress/?utm_source=feedburner&utm_medium=… […]
@All having trouble with download file.
1. Download the file.
2. Rename the extension as .xlsx
3. Double click or open it in Excel
Doesn't make any difference Chandoo, still end up with a zip file full of xml related files/folders
@Ian H
Download the zipped file and rename it to *.xlsx
where * is the filename
ps: Great name!
Many thanks for your help Hui but not sure why you are repeating what Chadoo said and which I first posted to because it didn't work for me. I did as he said and it didn't work, hence my post.
Chandoo says:
March 11, 2014 at 1:52 am
@All having trouble with download file.
1. Download the file.
2. Rename the extension as .xlsx
3. Double click or open it in Excel
Also, please note that we are investigating an issue with our webserver settings that may be causing this behavior. Sorry for the inconvenience. I am hoping to get this fixed in next 48 hours.
I used thermometer chart & conditional formatting using traffic lights. I just recently completed a dashboard I hope you can take a look but don't know where to send it. Thanks.
The in-cell bar charts is very interesting. This is not to be used as one can easly do manipulations by changing fonts/ font size etc
Hi..this is really helpful..
but I hve one quick ques..is it possible to hve conditional formating for chart graph based on text value and not the numbers..if I take your example project one bar should be red...if data is project 2 then it should be blue..basically we mke chart based on countries n each countries are assigned specific color...so I want a way where I can use conditionsl formating and not do it manaually each month.
You can set up conditional formatting rules to do this.
See this... it may help
http://chandoo.org/wp/2010/04/01/incell-panel-chart/
Hi Chandoo,
Great article and will be very useful.
One question - is it possible to have in-cell bar chart and the percentage complete (similar to icons)?
Try something like :
=CONCATENER(REPT("|";A1*100);REPT(" ";25-A1*25);"|")
it's quite nice
Hi Chandoo,
I am a great fan of you since i stumbled upon your blog. Your blog is very informative and insightful. I liked the way you presented the 5 steps using thermometer chart. I was very much inspired by that and tried to make my own version with 20 tasks to complete. On and after 17th step it was going downward. So I wanted to ask you that is there any limitation to thermometer chart
[…] shows us the 6 best charts to use, when you want to show your progress against a goal. There’s a sample file to download, so you can experiment on your […]
Is there any xhart is available which can show achivement percentage it may 80% or 120% means more an set target.?
Hi Chandoo,
Love your site. I have a small question regarding plotting data that contains ranking. I have 2 fields - Country, Rank. Note that i don't have the absolute values from which the rank has been calculated. So what is the best way of showing this on a graph given only the above 2 fields. Appreciate it
Regds,
Ross
@Ross
I would assign a set of simple numeric values to your ranks
Even a simple 1 to 10 makes plotting relativities easy
Dear Chandoo Sir,
Really awesome post.
Thanks.
Vignesh.V
We can always rely on Chandoo to explain to us clearly things that perhaps we already knew but weren't putting into practice the best way.
A limit I never liked about data bars was that they are monochrome - one colour for positive values, one colour for negative. So a couple of weeks ago I sat down to figure out a workaround. If anyone's interested...
http://digimac.wordpress.com/2014/06/29/multicoloured-data-bars-in-excel/
Epic fail on my part! After three months I just found out that what worked on my machine, didn't work on others.
Problem solved, more functions added.
The link above at
To hide them use ;;; custom cell formatting code (how to).
appears to be incorrect. However, using the downloaded file and selecting a cell(s) from that example provides the easy answer.
I wondered if the pies could have a color other than black and white (which, of course, would raise the color-blindness issue that you referred to with the traffic lights example).
Hi Chandoo!
Thanks for the informative post!
I have managed to understand and replicate all of the progress graphs except one, the thermo bar. I read up on the tutorial of how to create them, and I understand almost everything about the look and use of the bar, but one problem I am having is that I cannot seem to "center" the bar into the cell like you did. The reason being that even though the highest input (progress) percent is 100%, the program automatically puts in another 20%, so instead of 100% stopping at the end of the graph, it stops 20% short and I have a huge space at the end because of it.
How did you counter that problem? I have been trying for hours to fix it
@Aden
Set the Axis limits to Minimum 0 and maximum 1
Thanks. I started running a project recently, and I found your charts to be really helpful in tracking it's progress. I'm glad I found your page.
Hi Chandoo!
Great stuff for my customized project moving forward. However, when I use the blue block bars, the %ages spark up to smt like 5000% and cannot lower them nor scale them. If I input manually such as 50% without formatting a column, the bar for 50% e.g., will fill the cell completely, so that's kind of odd... what to do?
Thanks!
I guess I have the same problem. When I put 50 and click on the percentage, it is giving me 500%. Can someone help us on this. Thanks in advance
[…] http://chandoo.org/wp/2014/03/10/best-charts-to-show-progress/ […]
Hey,
Thank you for making this page. I do have one problem with the thermo graphs. Whenever I try to drag the graphs from one cell to the cell beneath it, the data remains selected on the former.
For example, if I had a thermo with a target number in A1 and an actual number in B1 with my thermo in C1, when I drag my thermo into C2, C3, etc., all of the graphs show the results from A1 and B1.
Is there a way to have these graphs update automatically as I will be regularly working in an excel file with hundred of entries?
P.S. I removed the $ symbols from 'Select Data', but that did not fix the problem.
Thanks again!
@Lisa
Not sure but it sounds like the new cells have Conditional formats applied
Select just the new cells
Select Conditional formatting, Clear Rules, Clear Rules from selected Cells
Hi Chandoo.
I am charting on some defaulter data where greater than zero is not desirable. Problem is that I have to highlight zero as target and anything above as undesirable. Seek your help
Hi Chandoo
Great post!
But I am wondering why bullet chart is not on this list. Is there a reason for its absence?
Thank you for these instructions. The bonus 5 Step Progress Meter you included would be perfect for my project. Where can I find the instructions?
Hi,
Do you know of any simple way to reduce the Data Bars padding so that they fit within the cells?
Thanks and great posy!
Regards
Appreciating the dedication you put into your website and in depth information you
provide. It's good to come across a blog every once in a while that isn't the same out of date rehashed information. Wonderful
read! I've bookmarked your site and I'm including your
RSS feeds to my Google account.
With #1 and #2, how would you also apply a red amber green to the bars (is it possible within chart formatting or would you need to utilise CF)?
I'm thinking of an in cell bar of some kind which will show against a known goal end date how far along with the goal you are (this is to be used for 'how many of the X number of people that I need to train in X timeframe, have been trained and therefore which of each training group is on track to complete on time or falling behind'.
So there would be knowns of number of people, target end date but I'd want it to reflect accurately as some groups of trainees might only have 50 in so their 50% done would be different to a group of trainees where their group had 200 people in it - but 50% would still be the same. Somewhere there'd probably need to be something which noted that there was a different volume of trainees so it could but the remaining effort to train people into context?
Hope that makes some kind of sense, I could be waffling!
[…] charts. Its got things like “Best Charts to Compare Actuals vs Targets” and “Best charts to show progress“. I love me some charts […]
Thanks a lot my dear.
very Useful it for me.
Another great post, thanks for sharing.
Chandoo, I am just starting an Excel class, and everything in the class is new to me. I am learning how to use all of these great charts but don't know what they are all used for. Thank you for your post and I think I will be able to use this down the road throughout my business career
in the above charts , Chart #2: Conditional Formatting Data Bars
->Assume if we have completed 35% of work it is showing in Blue color ,in the same cell remaining 65% of work should shows in some color , how to show?
Hi Sir,
This is Rachit and I am a big fan of you and your work. This is to request you please make a video for Beverages Sales performance data analysis in Excel.
Regards,