In early February Sujit asked a question at Chandoo.org, original post.
I require a formula stating criteria [0%-25% output will be 0, 26%-50% output will be 0.1, 51%-75% output will be 0.2, 76%-100% output will be 0.3 & 100% + output will be 0.4]
Kyle, responded with a neat Sumproduct formula
=SUMPRODUCT((B3>{0.25,0.5,0.75,1})*0.1)
I think it is so neat that it is worthy of sharing and detailing here at Formula Forensics:
So today we will pull Kyle’s answer apart to see what’s inside.
Kyle’s Formula
As usual we will work through this formula using a sample file for you to follow along. Download Here.
Kyle’s formula is a Sumproduct based formula
=SUMPRODUCT((B3>{0.25,0.5,0.75,1})*0.1)
Lets look at cell C3 as our example.
;
In C3 we see the formula: =SUMPRODUCT((B3>{0.25,0.5,0.75,1})*0.1)
Which consists of a Sumproduct function and a formula inside the sumproduct.
We know from Formula Forensics 007 that Sumproduct, Sums the Product of the Arrays, and that when there is only 1 array it simply sums the array elements.
In this case the Sumproduct only has a single array as an element
=SUMPRODUCT((B3>{0.25,0.5,0.75,1})*0.1)
and so the (B3>{0.25,0.5,0.75,1})*0.1 component must return an Array of elements for the Sumproduct to sum.
If we now look at the (B3>{0.25,0.5,0.75,1})*0.1 component.
We can see that it consists of a comparison B3>{0.25,0.5,0.75,1}
The result of the comparison is Multiplied by 0.1.
Sujit’s orginal question asked: 0%-25% output will be 0, 26%-50% output will be 0.1, 51%-75% output will be 0.2, 76%-100% output will be 0.3 & 100% + output will be 0.4
And Kyles formula is using B3>{0.25,0.5,0.75,1} to work out which category the value in B3 belongs to.
We can see this if in a blank cell say C5: we enter the following:
= B3>{0.25,0.5,0.75,1} press F9 not Enter.
Excel will respond with ={TRUE,TRUE,TRUE,FALSE}
This is showing us that the 1st, 2nd and 3rd elements in the formula: B3>{0.25,0.5,0.75,1}, are True
In our example the value in B3 is 80% which is 0.8 which is Greater than 0.25 and Greater than 0.5 and Greater than 0.75, but Not Greater than 1.0.
The next part of Kyle’s formula is (B3>{0.25,0.5,0.75,1})*0.1
In a blank cell say C7: enter the following:
= B3>{0.25,0.5,0.75,1}*0.1 press F9 not Enter.
Excel will respond with ={0.1,0.1,0.1,0}
This is showing us the result of
=(B3>{0.25,0.5,0.75,1})*0.1
={TRUE,TRUE,TRUE,FALSE} *0.1
={0.1,0.1,0.1,0}
Sumproduct now only has to add up the Array
=Sumproduct({0.1,0.1,0.1,0})
Which it does returning 0.3.
The Neat Part
The neat part of this is that Kyle has used the 0.1 Multiplier to Force the array to an array of Numbers for Sumproduct to sum.
Had Kyle used: =SUMPRODUCT((B3>{0.25,0.5,0.75,1}))*0.1
Excel would have returned an answer of 0
This is because as we saw in Formula Forensics 007, Sumproduct doesn’t know what to do with the array of True/False, they need to be converted to numerical equivalents for Sumproduct to operate on.
In a spare cell, say C9, enter: =SUMPRODUCT((B9>{0.25,0.5,0.75,1}))*0.1
Excel will respond with 0
Of course that can be fixed by using a double degative of a 1* inside the formula
In a spare cell, say C10, enter either:
=SUMPRODUCT(1*(B9>{0.25,0.5,0.75,1}))*0.1
or
=SUMPRODUCT(- -(B9>{0.25,0.5,0.75,1}))*0.1
Excel will respond with 0.3 as it should
Except that the formula is longer and now has to do 1 more multiplication.
Download
You can download a copy of the above file and follow along, Download Here.
Formula Forensics “The Series”
You can learn more about how to pull Excel Formulas apart in the following posts
We Need Your Help
I have received a few more ideas since last week and these will feature in coming weeks.
I do need more ideas though and so I need your help.
If you have a neat formula that you would like to share and explain, try putting pen to paper and draft up a Post like above or;
If you have a formula that you would like explained but don’t want to write a post also send it to Chandoo or Hui.
24 Responses to “Free Excel Risk Map Template”
Why didn't you include the mitigation or risk IDs in the chart?
You can easily add such detail by modifying the TEXTJOIN function. Another way to use them is to add a slicer to highlight all risks that have a specific mitigation strategy or team member assigned to them. I left out those bits fto keep the article short.
I tried adding a slicer filter for the mitigation step but the TEXTJOIN is not affected by it. I added a helper column called "Visible" using the AGGREGATE function but I am unable to think of a method to pass that on to the map.
Could you please help, Chandoo?
Thanks
Never mind. I got it working. 🙂
Apologies, I didn't thank you for the file to begin with.
Great concept. thanks!
Awesome.. good to hear that Rajesh and of course you are welcome 🙂
Hello everyone,
Another amazing tutorial, great content and tips! My question is about slicers. How do you add slicers to this matrix? I've added 2 columns in my workbook table (Work Stream and Project Name) and I want to be able to filter (slice) the matrix on Project Name, but having some trouble with this. The slicer works fine in the data table, but how do I connect it to the risk matrix, so that only risk titles show up for the selected project?
Many thanks in advance for your guidance,
MyvJ
Can you create a sheet in live stock market data price change with profit and loss graph with time. which could indicate live profit and loss in each time frame 5minute, 10 minute, 15 minute, 30minute, hourly with some modifications
Hi
I've tried to get your formula to work, but likelihood / impact 1/1 does not seem to work.
Hi Chandoo
Awesome instructions! Thank you so much, this really helped me.
I was wondering if it would be possible to list the Risk ID number along with the Risk Title with a dash in between, rather than a bullet point? I have had a try at this but I keep getting a #VALUE error. I can see it's wrong but can't figure out what it should be instead. If you have time do you mind letting me know what I'm doing wrong?
{=" - " & TEXTJOIN(CHAR(10)&" - ",TRUE,
IF(RiskRegister[Likelihood]=$A17,IF(RiskRegister[Consequence]=F$3,CONCAT(RiskRegister[ID],RiskRegister[Risk Title]),""),""))}
Thank you!
Sally
Hey Sally, You are welcome.
I think the CONCAT inside TEXTJOIN is the culprit. Try this and hopefully you should see the ID too.
{=" - " & TEXTJOIN(CHAR(10)&" - ",TRUE,
IF(RiskRegister[Likelihood]=$A17,IF(RiskRegister[Consequence]=F$3,RiskRegister[ID]&RiskRegister[Risk Title],""),""))}
Hi Chandoo
You're a legend! Thank you so much! I had to make a minor tweak but otherwise it worked perfectly. Here is the tweaked version in case it helps anyone else:
=TEXTJOIN(CHAR(10),TRUE,
IF(RiskRegister[Likelihood]=$A8,IF(RiskRegister[Consequence]=C$3,RiskRegister[ID]&" - "&RiskRegister[Risk Title],""),""))
Thank you again!
Hi, Im not able to change the formula when trying to add risk Id instead of bullet point.
trying this: ="• "&TEXTJOIN(CHAR(10)&"• ";TRUE;IF(risks[Probability of Occurance *]=$C5;IF(risks[Severity of potential Impact *]=H$8;risks[Risk ID]&". "[Title *];"");""))
Cant see any solution on this.
thankful for help
Hi Chandoo,
This is perfect - One quick question, How can I add a hyperlink to the risks - So that I can click on the particular risk and it takes me to the actual row of that item.
Many thanks in advance.
HI Chandoo,
Is there a way to only display filtered item. Once the list gets big, it's hard to see all risk.
Kind regards,
SinYen
Hi Chandoo,
Quick question
1) Is there a way to remove duplicates within each risk block?
2) Is there a way to have the results in the chart update based on a filter or slicer?
Thanks a lot
Hi Chandoo,
The risk map is a brilliant tool, and I wanted to the risk map to only show Open risks. How can I do that?
Just found this today as I am making a risk matrix as well. I got the formula to work with this, where a risk score is above 30. Risk score = probability*impact*modifier.
So this works flawlessly, ="- "&TEXTJOIN(CHAR(10)&"- ",TRUE,IF('Risk tracker'!G4:G27>=30,IF(Table1[Urgency]="Now",'Risk tracker'!A4:A27,""),""))
I am trying to find a range now. Risk score in between 21-29. I tried using the AND function, but I couldnt get it to work. Is there anyway to get this formula to work with a range as mentioned above?
Thanks Eric.
You can't use AND() as it is not able to return arrays. You can try below formula.
="- "&TEXTJOIN(CHAR(10)&"- ",TRUE,IF(('Risk tracker'!G4:G27>=21)*('Risk tracker'!G4:G27<=29),IF(Table1[Urgency]="Now",'Risk tracker'!A4:A27,""),""))
Hello, this template is nice, thank you but im facing a problem when I need to find a range of impact. I cant figure out how..
My actual form is "="• "&TEXTJOIN(CHAR(10)&"• ";TRUE;IF(Table1[Impact]=A8;Table1[Title];"");"")"
Where A8 is number "1" so this formula finds everything with impact 1 and shows the titles.
What I need to get is a range so,
A8 is "1" and A9 is "2" and I need the formula to find all titles which impact is between 1 and 2.
I tried the AND function and so on, nothing worked..
Can you help me please?
i tried everything in your video in the end i only get the bullet... please guide me through
Sorted it... i was flash filling the other cells and it took other columns...
i do have another question though... how can i use slicers to filter the content of the matrix, so that it'll show only the departments i select?
slicer is working fine with the table, but the matrix still shows all the results
Just want to thank you for this.
It is awesome.
Hello everyone,
I think I accidentally nested my question in another thread. Apologies!
This is another amazing Excel tutorial, with great content and tips! My question is about slicers. How do you add slicers to this matrix? I've added 2 columns in my workbook table (Work Stream and Project Name) and I want to be able to filter (slice) the matrix on Project Name, but having some trouble with this. The slicer works fine for the data table, but how do I connect it to the risk matrix, so that only risk titles show up for the selected project?
Many thanks in advance for your guidance,
MyvJ
This is another amazing Excel tutorial! My question is about slicers. How do you add slicers to this matrix? Please advise