Mapping relationships between people using interactive network chart

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Today, lets learn how to create an interesting chart. This, called as network chart helps us visualize relationships between various people.

Demo of interactive network chart in Excel

First take a look at what we are trying to build.

Network Relationships - Interactive Chart in Excel - Demo

Looks interesting? Then read on to learn how to create this.

Note: thanks to Hans whose email question inspired me to create this chart.

Tutorial to create interactive network chart in Excel

Note: This tutorial requires intermediate-to-advanced Excel knowledge. So if you are beginner, learn the basics & advanced concepts first and then comeback for this.

In order to create this chart in Excel, we need to first understand various ingredients of it.

As you can see, the chart contains these parts:

  1. A set of dots, each representing one stakeholder
  2. A set of grayish thick & dotted lines representing all relationships between people.
  3. A set of green thick & blue dotted lines representing relationships for the selected person.
  4. A slicer for person selection (can be replaced with list box or clickable cells in Excel 2007 or below)
  5. Summary statistics of the selected person

Getting started with the relationship data

To simplify our tutorial, lets assume we are talking about relationships between just 4 people, named Ash, Billy, Cynthia & Darren.

Our relationship matrix looks like this:

Data - Relationship matrix - network chart in Excel

  • 0 means no relationship
  • 1 means weak relationship (for example: Ash & Billy just know each other)
  • 2 means strong relationship (for example: Cynthia & Billy are friends)

The downloadable workbook is created to take up to 20 stakeholders.

Geometry of the network chart

If we draw the relationships between these 4 people (Ash, Billy, Cynthia & Darren) on a paper, it would look like this:

Hand-drawn relationship network map

The 2 things we need to determine are,

  1. The location of dots (where person names are printed)
  2. The lines (starting & ending point of lines)

Plotting dots around circle

We need to plot our dots in such a way that gap between each dot is same.  This will create a balanced chart.

What shape satisfies our need for such equal gaps? A circle of course.

Hey wait, I don’t see a circle in the chart you have shown…?

Thats right. We don’t need to draw a circle. We just need to plot dots around it.

  • So we have 4 stakeholders, we need 4 dots
  • If we have 12 stakeholders, we need 12 dots
  • If we have 20, we need 20 dots.

Assuming the origin of our circle is (x,y), radius is r and theta is 360 divided by number of dots we need,

the first dot (x1,y1) on the circle will be at this position:

x1 = x + r*COS(theta)

y1 = y + r*SIN(theta)

[Related: How to create a spoke chart in Excel]

Once all the dots are calculated & plugged in to an XY chart (scatter plot), lets move on.

Plotting the lines

Lets say we have n people in the network. So that means, each person can have a maximum of n-1 relationships.

So the total possible lines in our chart are n*(n-1)/2

We need to divide it by 2 as if A knows B, then B knows A too. But we need to draw only 1 line.

My network chart template is set up to work with up to 20 people. So that means, the maximum number of lines we can have will be 190

Each line requires a separate series to be added to the chart. That means, we need to add 190 series of data just for 20 people. And that satisfies only one type of line (either dotted or thick). If we want different lines based on type of relationship, then we need to add another 190 series.

This is painful & ridiculous.

Fortunately there is a way out.

We can use far fewer series and still plot the same chart.

Lets say we have 4 people – A B C & D. For the sake of simplicity, lets assume the co-ordinates of these 4 are

  • A – (0,0)
  • B – (0,1)
  • C – (1,1)
  • D – (1,0)

And lets say, A has relationships with B, C & D.

That means we need to draw 3 lines, from A to B, A to C & A to D.

Now, instead of supplying 3 series for the chart, what if we supply one long series that looks like this:

(0,0), (0,1), (0,0), (1,1), (0,0), (1,0)

That means we are just drawing one long line from A to B to A to C to A to D. Agreed that it is not a straight line, but Excel scatter plots can draw any line as long as you provide a set of co-ordinates.

PS: This is a trick I learned from Roberto of E90E50. He used this trick in the winning entry of our recent dashboard contest.

See this illustration to understand the technique.

Using a single series to draw multiple lines in Excel XY chart

So instead of 190 series of data for the chart, we just need 20 series.

In the final chart, we actually have 40 + 2 + 1 series of data. This is because,

  • 20 lines for weak relationships (dotted lines)
  • 20 lines for strong relationships (thick lines)
  • 1 line for highlighted person’s weak relationships
  • 1 line for highlighted person’s strong relationships
  • 1 set of no line & just dots for the people

How to generate all the 20 series of data:

This requires following logic:

  • Assuming we need lines for the relationship of person n.
  • That person’s dot location will be (Xn, Yn) and already calculated earlier (in the plotting dots around circle)
  • We need total of 40 rows of data
  • Every odd row will have (Xn, Yn)
  • For every even row
    • Divide the row number by 2 to get person number (say m)
    • (Xn,Yn) if there is no relationship between n and m
    • (Xm,Ym) if there is a relationship

We need MOD & INDEX formulas to express this logic in Excel.

Examine the download workbook to understand how its done.

Once all the line co-ordinates are calculated, add them to our scatter plot and format.

I used a macro to automate the formatting. It can be done manually too, just takes a little patience.

Slicer for selecting a person

This works only in Excel 2010 or above.

Select the first 2 columns of relationship matrix & create a pivot table.

Now, insert a slicer on Person name column.

Slicer for person selection - network chart

Using simple IF formula, extract the selected person name from pivot table (examine download file for the logic).

And using the name, extract the subset of line data to separate range (2 sets of data – one for weak & one for strong relationships)

Add this new data to our scatter plot and format.

Format the slicer (using slicer styles) so that it looks slick.

Related: formatting slicers using styles.

NOTE About Slicers: If you change or add any data, you must refresh (from Data ribbon) to update the slicer. This can be automated with a macro, but I want to keep this file macro free.

[Alternative] Selecting a person with form controls

You can use either a list box or a range of clickable cells. See the 2003 compatible download file for an example of this.

Summary statistics

Using simple formulas extract statistics for the selected person and show them near the chart.

Summary statistics - Network chart in Excel

Adding labels to the chart (person names)

In our chart, we are showing person names instead of regular label like X or Y value. This is done with value from cells label feature in Excel 2013.

Labels for Excel scatter (XY) plot - done using Excel 2013 or add-in in earlier versions

For earlier versions of Excel, I recommend using Rob Bovey’s excellent XY Chart Labels add-in.

Putting it all together

Once everything is ready, clean up the chart, slicer and other elements, put them together. And we are ready to go.

Relationship Network in an interactive Excel Chart

Download Network Relationships Interactive Chart Template

Click here to download the chart template workbook. The download is a ZIP file and it contains 3 workbooks – compatible with Excel 2013, 2010 & 2003+. Use the version that you need.

Please examine the formulas & chart settings to understand how it is constructed.

Note: Hit Refresh from Data ribbon to change slicer once you have added or modified data.

When to use network relationship chart?

A network graph is a good place to explore relationships between people in a project or team. It is especially useful when selecting a sub-set of people from large group to closely work on a project.

Any alternatives?

There is a popular Excel Add-in named NodeXL that can help you visualize and analyze relationships between people in a more in-depth fashion.

Check out Chord diagram & Cosmograph from E90E50 site for other ways to present this data.

Do you use these kind of charts?

I have used network charts earlier to depict relationships between various people or things. But I have never created such charts in Excel, I always used either Power Point or some other drawing program to create them. That is why I am excited about this chart. Figuring out the formula & graphing logic was fun.

What about you? Have you used such charts before? How do you like the network chart presented here? Please share your thoughts using comments.

 

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37 Responses to “Quickly Change Formulas Using Find / Replace”

  1. Andras Ujszaszy says:

    Chandoo,
    this is a really cool stuff what I use quite often. In addtion this method also could be a good choice to switch the reference type of the formulas from relative to absolute or vice versa. (just simply replace the $ in the same way).
    Andras

    • Chandoo says:

      @Andras: you are right, we can use find / replace to change references, reference types etc. Now, only if they had regex in find/ replace, we could so much more 🙂

      @Tony Rose: Thank you. This is very useful and powerful feature. I even use it for cleaning up data. While formulas are good, they are not the solution for every problem. Often when I need more powerful cleanup / changing, I copy paste the stuff to text editors like notepad++ and then use their find/replace to do the dirty task.

      • Sonia says:

        What if i have to change the formula from ='Analysis'!C1 to 'Analysis 1'!C1?
        I tried doing it using Find /Replace but could't. Encountered some errors.

        And is there a way to change this using VBA???

        • Ollie says:

          Hi,

          Did you ever get a reply to this?

          Thanks

          Ollie

        • MF says:

          to make your life easier, suggest you to avoid (Space) in worksheet names whenever possible. Consider (underscore) instead.

          • Luke Moraga says:

            As the first formula wouldn't have the single apostrophes (since there's no space) need to include that in replace. So, search for:
            Analysis

            and replace with:
            'Analysis 1'

  2. Tony Rose says:

    This could be the most useful tips I've seen in a while. I use this all the time and can instantly change 400 formulas with a few clicks. Like so many other functions in Excel, I don't know what I would do without this one.

    Keep 'em coming!

  3. [...] on formulas: 5 areas where mouse kicks keyboard’s butt | Edit formulas in bulk using Find / Replace | Excel Formulas Online [...]

  4. purushoth says:

    THANKS BRO

  5. The Red Ranger says:

    You, sir, are a god among men...

  6. David says:

    This is really cool. Your just save me hours of work. Thanks.

  7. Jodie says:

    Thanks so much for this fix! It saved me tons of work. I'm muddling my way through and this really helped!

  8. Jesse says:

    Oh... My... God!
    This tip just saved me about 2 hours every month! I can't believe how easy it is to use. Now, can somebody tell me who I should call to get a refund for the previous 100 hours I spent manually changing formulas cell by cell?
    Thanks so much! 

  9. Bilal says:

    THANK YOU!!!!
    You saved me hours, I had a sheet that has more than 500 formulas, and i needed to replace the year in all of them, you saved me hours

  10. Elliot says:

    Awesome info on replacing cell addresses in formulas. I have never heard about Ctrl+` before. Thank you!

  11. T says:

    I have something inside a formula like:
    =sum(A1, A2*10) all over I now need to get rid of the *10 {=sume(A1, A2)} I thought to use the find replace trick above but with a blank in the replace but it then outputs just zeros. I thought I could trick it by doing *1 but then it just turns into =*1) with none of my references. Does anyone have an idea how to do this?
    The Ctrl+ trick is cool.

  12. Peter says:

    Thank you! This literally will save me hours and hours of time, and that's without losing my sanity in the process!

  13. Brigitte says:

    I have Sheet(1), Sheet(2), Sheet(3), etc ... Sheet(100).
    Then there's a summary tab where I want to recap information on all those different sheets. Is there anyway to create a formula on the Summary tab to get ='Sheet(1)'!B$29 copied down for all 100 sheets without having to change each sheet # within the formula by hand?

    • Hui... says:

      @Brigitte
      If you have a list of the sheet names in A2:A100
      In B2: =INDIRECT("'"&A2&"'!$B$29")
      Copy down

      or if you don't have a list of the sheets names you can make it up on the fly
      =INDIRECT("'sheet("&ROW()-1&")'!$B$29")
      Copy down

      • Brigitte says:

        Thanks for the suggestion. However, I copied your formula right back to my file and it didn't work. So I did it another way. I put the tab/cell reference in one cell and then did an =INDIRECT() to capture that information.

        K2="'Sheet("&L2&")'!B$29" which has a value of 'Sheet(1)'!B$29
        B2=INDIRECT(K2) which now has a value of 40 (contents on Sheet(1).

        Thank you!!!!

  14. Mohammed Ali says:

    Thank you ..

  15. Niharika says:

    Hi, Out of all the formulae, I wish to replace the formula which has generated 0 value with blank space? I am unable to do it with find and replace function,

    Please suggest.

  16. Rashed says:

    Thanks.

  17. Kevin says:

    Chandoo, you literally just saved me about 2 hours of work. I had a document with a daily report in two formats. The second formate just linked to all the appropriate cells in the other format (different sheets). This was 180 references that needed to be changed and I had to make this for a 4 week period (aka 28 different sheets at 180 references to change per sheet).

    Thanks so much.

  18. Brian says:

    I have tried this way and without using the Ctrl-` formula view
    Either way, I am trying to do something simple, but it won't let me.

    I have a bunch of cells with a simple math formula like
    =-(0.5*20)
    various values in each cell, multiplied by 20

    I simply want to change the multiplier globally from 20 to 25. But when I tell it to find *20 and replace it with *25, it replaces the entire cell contents with *25, rather than just replacing the *20 portion of the cell contents.

    Can anyone assist with this? Seems so simple, but Excel isn't letting me do it.

    • Hui... says:

      Search/Replace 20 or 20) with a cell Reference eg A1 or A1)
      Then put the value 25 in A1

      By using a * in the search it replaces all the text

  19. sadaqat says:

    how to find a specific cell's value in a column & replace replace it with another cell value i actually need a method to replace a data in ca column and replace with the value i have in a specific cell can i give a [ location ] of data to what i need to find and then give row or column range to where i need to find and the given value & then give a [ location ] of data to what i want to be replace with the find and replace by row & column range & than by specific criteria and than by specific location.
    please help.

  20. sadaqat says:

    how to find a specific cell’s value in a column & replace replace it with another cell's value.
    i actually need a method to find a specific cell's data in a column and replace it with the value i have in a specific cell.
    can i give a [ location ] of data to what i need to find and then give row or column range from where i need to find the given value & then give a [ location ] of data to what i want to be replace with.
    find and replace by row & column range & than by specific criteria and than by specific location.
    please help.

  21. sadaqat says:

    how to find a specific cell’s value in a column & replace it with another cell’s value.
    i actually need a method to find a specific cell’s data in a column and replace it with the value i have in a specific cell.
    can i give a [ location ] of data to what i need to find and then give row or column range from where i need to find the given value & then give a [ location ] of data to what i want to be replace with.
    "find and replace by row & column range & than by specific criteria and than by specific location."
    in more than 100 sheets in entire workbook
    please help.

  22. Juaninho says:

    This is a great tool, does anyone knows an easiest way??

    I'm working with a system that has over 59000 references... so every time the replace all is activated. I lose an entire day.

  23. sadaqat says:

    i actually needs to find cell number "D12" in column "D" and replace with Cell Number "B8" for example
    find what = Cell Number "D12" John McNamara
    find Where = in Column "D"
    Replace with = Cell Number "B8" Bieber D'Souza
    Replace Range = Column "D"
    In which Sheet = All Sheets in Work Book (more than 100 Sheets)
    Note: in every Sheet Cells Number "D12" & "B8" containing Different Employ Name but the find rang and replace rang are same in every sheet and find what cell number and replace with cell number are same also.
    please help!

  24. sara says:

    thank you. saved lot of time.

  25. Crystal says:

    Thank you from the bottom of my heart!

  26. Gerard says:

    Hi, I am trying to figure out how to use RE to find and replace several values in a column. Using find and replace does not work because of the values I am working with. I have a column with hundreds of rows that have a description of several operating systems and other info, which looks like this: Windows Server 2008 R2 Member Server Security Technical Implementation Guide; Windows 2008 Member Server Security Technical Implementation Guide; Solaris 10 10 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE; and Windows Windows 2003 Member Server Security Technical Implementation Guide.

    I need to be able to find and replace (or basically curtail the descriptions) to be Windows 2008 R2; Windows 2008; Windows 2003; and Solaris 10. BUT when I run find and replace with just *2008*, it finds every instance, including the ones with R2 at the end. I need it to only change the ones with 2008 to Windows 2008 and the ones that have 2008 R2 to Windows 2008 R2. I know it is possible, but I have no clue on how to write a macro to do this.

    Thanks for your help,
    Gerard

  27. Paul says:

    Wickedly efficient workaround. Excel really is a powerhouse program, all you have to do is dig into it. Ctl ~ exposes the formulas, and Ctl H allows for the multi edit. Brilliant, Chandoo!

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