Key driver analysis – What influences attrition?

Key driver/influencer analysis using the newly released Power BI “Key influencers” visual.

Key driver analysis or key influencer analysis is critical to understand what factors impact an outcome and/or what is the relative importance of a factor. Example:

What influences employee attrition? Overtime? Job Level?

What influences employee attrition in the Sales Executive role? Distance from home?

What influences customer attrition? High call rate? International Voice plan?

Knowing answers to above helps in decision making.

If employees in Job Role “Healthcare Representatives” leave the most because of the distance from home, maybe offer them fuel reimbursement or maybe offer them accommodation expenses if they stay near to office?


The newly released Power BI “Key influencers” visual (released as part of Feb 2019 Power BI Desktop release) aids such analysis very very quickly with no code! Crazy!

We applied this new visual to analyze what drives employee attrition, and I must say, I’m blown away by the outcome, ease of use, and comprehensiveness of the visual.

Download Power BI report and play with the visual.

But, how does the result look like?

From the visuals above we can clearly see what influences our variable Attrition=Yes. OverTime, MaritalStatus, YearsAtCompany, JobSatisfaction, and so on.

Not only that, the visual also provides the values of the factors which influences our variable of interest the most.

How to interpret the visual?

The likelihood of attrition increases by 2.93x if employees are doing overtime. Or, Attrition is 2.93x more likely in the employees who are doing overtime.

Hmm… if you do overtime, you may quit. This is obvious.

The attrition is 2.18x more likely if employees are single!

Attrition is also high if the Department is Sales.

And so on.

The left-hand side view of Key influencers shows all the factors influencing our “Attrition=Yes” by a factor of 1.0 and above.

The right-hand side view shows the distribution of data with respect to the selected factor and Attrition either as a column chart or a scatter plot.

The dashed line shows Avg. Attrition % of all values except for the key influencer one (in this case except for OverTime = Yes)

There is another view of this visual where we can see Top segments with high attrition % and their characteristics.

Top segments view in Key influencers visual in Power BI

The visual identified 4 segments with high attrition % along with population count. Clicking on a bubble shows us the characteristics of that segment.

Top segments deep dive

Segment 1 with Attrition % as 57.6 has employees in Department Sales, DistanceFromHome > 11, JobLevel is high and OverTime is Yes.

Wow!

You can further drill down this segment by clicking on “Learn more about this segment” and see what other factors influence this segment.

Quick FAQs on Key influencer visuals and its outcome

Can I filter this visual?

Yes, you can. Example: Why are employees in job role “Healthcare Representative” leaving the company?

Filter the visual and the analysis changes!

Is the visual interactive?

Yes, you can select individual influencing factors and see the distribution of Attrition % by the selected factor.

Can I hover over the values in the scatter plot above?

Yes, you can!

Can I see the logic or p-values associated with factors or key influencers?

No, not yet. This visual is in preview mode. Power BI team may add this feature in the future. Not sure about this.

Can I just see the top X key influencers?

No, not yet. This visual is in preview mode. Power BI team may add this feature in the future. Not sure about this.

I do not see my key influencer in this visual?

Yes, this can happen. Based on my R code using RandomForest, Age should also be an influencing factor for attrition but doesn’t show up in Power BI visual.

See this scatter plot. If Age decreases, Attrition % increases. Maybe Power BI just checks how the “increase” direction of a factor increases Attrition % or Maybe the number of data points for lower age and high attrition is less. 

As Age decreases, Attrition % increases

Can I export the data for segments?

No, not yet. This visual is in preview mode. Power BI team may add this feature in the future. Not sure about this.

Does this visual analyze multiple factors and provide conclusions?

I do not think so. In the example below, the likelihood of Attrition % increases by 11.58x if monthly income goes up. But why is that so? Could it be because for those employees the YearsAtCompany is also more?

Maybe Power BI visual needs to remove outliers.

Power BI visual, currently, doesn’t analyze this for us.

Why are employees leaving if we increase their monthly income?

I want to set this up for my data?

Ok, here are steps to achieve this.

Step 1: Download and Install Power BI Desktop Feb 2019 from here.

Step 2: Enable this visual from “Preview features”.

Step 3: Restart Power BI Desktop. Click on the visual highlighted to put it on the canvas.

Step 4: In the visual data options, drag the field to analyze in “Analyze”, and possible influencers in “Explain by”.

Note: The visual is evaluated on the table level of the field being analyzed. In this case, we are analyzing Attrition, and hence the visual runs at an Employee level. So you may not need aggregations on “Explain by” field. Otherwise, appropriate aggregations are required.

Step 5: In the visual select “Yes” in Attrition value. In your case, select the value you want to analyze.

Step 6: Share analysis with your boss/team/company, and say Thank you to us 🙂

No code, drag and drop solution to key influencers analysis in Power BI!

Simple, huh?

Thanks

Ranbeer

PS: This visual is currently not supported in Power BI Embedded, Publish to Web and Power BI Mobile scenarios.

Download Power BI report and play with the visual.

HubSpot to Power BI

Tons of questions on how can we copy data from Facebook Ads or HubSpot or Google Analytics to Power BI.

There are a couple of reasons why you want to analyze data from multiple sources with Power BI.

Say you want to analyze how much traffic and number of leads (CRM) are generated by spending on Ads on Google and Facebook. And, how many of them actually purchase (Stripe or PayPal)?

You can go to each of these service providers dashboards and get answers to your questions, one by one. Or, you can copy data from these providers into a single system say Power BI and analyze data together. Which one do you think will give you a clear business picture and with much less overhead?

Clearly the Power BI one!

Power BI provides data connectors to a good number of services already. Google Analytics, Facebook Page, MailChimp, SalesForce, MixPanel etc. But there are a number of sources for which you do not have data connectors yet – HubSpot, Facebook Ads, Instagram Ads, LinkedIn Ads etc.

Update (April 30): We have created a list of popular Power BI custom data connectors. The list includes connectors to HubSpot, Zendesk Support, Facebook Ads, Instagram Ads, LinkedIn and more. Check here.

Of late I have been seeing a lot of requests to copy data from HubSpot to Power BI!

This post talks about two general approaches to copy data to Power BI from online services.

Approach 1: Use Power Query to get data from Online Services (through REST APIs), model and visualize data in Power BI – Self Service, Simple, Less cost

Approach 2: Setup data factory pipelines using say Azure Data Factory, copy data to a database/data warehouse and use this data layer to visualize in Power BI – Enterprise, More control on data, Involves several components

Which approach to go with will depend on how you want to reuse the data from these services.

Questions to ask:

Question 1: Are you going to use the data only in Power BI/Excel and only for visualization and analysis?

Question 2: Are you going to use the data in another application or going to reuse that data for Machine Learning or other use cases?

Question 3: How big is your data?

If your data is small* and does not have to be used outside of Power BI/Excel and the purpose is only visualization and analytics – go with Approach 1.

Else go with Approach 2.

Approach 1 is quick to implement and will incur a less overall cost.

Approach 2 could take time to implement and has several other components than just Power BI (read on).

Approach 2 also provides you ability to pull incremental data. While in Approach 1 (Pro users) you have to pull full data every time.

*Note 1: I have seen Power BI experience getting degraded if your model size becomes more than 300 MB.

Examples to showcase how to use Approach 1.

You can go with either “Get Data” way or a Custom Connector way. I will show steps for “Get Data” way to connect to HubSpot (CRM).

Step 1. Go to “Home” tab in the Power BI Desktop ribbon, select “Get Data->Web”

Get Data -> Web

Step 2: Select “Advanced” radio button and put API details. The screenshot below shows examples for connecting to HubSpot ‘Companies’ API endpoint.

Connect to HubSpot Companies API endpoint

Step 3: Apply transformations using Power Query

Transform JSON data to tabular format using Power Query transformations.

Step 4. Start visualizing!

Sales Pipeline Report from HubSpot data developed by us.

Play with Sales Pipeline Report LIVE

Examples to showcase how to use Approach 2.

Here we take Azure Data Factory to pull data from Google Analytics API.

Note: In the example below “FlattenJSON” is an Azure Function to simplify complex JSON returned by Google Analytics API.

Step 1: Setup data pipelines using say Azure Data Factory and push data to a database/data warehouse

Azure Data Factory v2 data pipelines to copy data from Google Analytics to Azure SQL

Step 2: Connect to the database using Direct Query Approach in Power BI

Direct Query to connect to Azure SQL

Step 3: Start visualizing!

Google Analytics data visualized by us using Approach 2

I have seen customers going with Approach 1 almost always since this saves time and cost. But this approach may require a gateway.

Which approach have you used in similar scenarios? Let me know

Thanks,

Ranbeer M

Note 2: Power BI has dataflows which may replace Azure Data Factory in scenarios above.

Note 3: Power BI team is also working to expose the data model behind the scene as Analysis Services. You can then query the data through SSMS. That feature should come out in preview in Feb 2019. (This date is from Microsoft Power BI blog/website)

This is available now. Check here.

Note 4: Power BI team has released AI features in private preview so you can apply ML techniques to your data in Power BI! More on that in this and this blog post.

Note 5: You may contact us if you need similar data movement and analytics for your online services data!

Who else wants Heat Stream analysis with Power BI?

Namaste! It’s been a tiring month – working on customer projects, building a product prototype, getting work done by my team, phew! – I’m donning multiple hats. Recently we wrapped up two projects on showing heat streams with Power BI. The projects were challenging, and you know customers will take out the best from you. And, it happened with us as well…

Heat streams could be very useful in analyzing large amount of data sets and analyzing patterns or “heats” over a period of time.

Some use cases of heat streams could be:

  1. Analyze call center calls by weekday and time of the day. The time of the day as X-axis and weekdays as Y-axis with the number of calls as “heats”
  2. Perform clickstream analysis for website clicks
  3. Analyze Patient re-admissions and re-admission types in a hospital over a period of years

Usually, in a heat stream visual, we put the time of the day or date or year on X-axis, a discrete or a continuous value on Y-axis, and fill the visual with a discrete or a continuous value with gradient colors.

The code that we developed used ggplot and geom_raster layers along with various settings for formatting axes. This R code combined with Power BI gave us BI capabilities. The visuals were seamlessly sliced/diced based on the data we selected in Power BI. I’m attaching here screenshots of visuals that we created using R and Power BI.

Our customers were wowed by the output they saw from the data. Remember, if data is the new oil, then insights in the new king. And we do this using interesting and stunning visuals.

Screenshot 1:

HeatStreamVisual1

Screenshot 2:

HeatStreamVisual2
Heat stream Visual 2 using Power BI and R

Note: You need large amount of data to have this kind of output. We can further improvise these visuals to be interactive. This can easily be done using plotly and htmlwidgets library combined with Power BI.

The biggest challenge you will face in plotting such visuals is handling large amount of data points on “x-axis”. You may have to use breaks or cuts to limit the points.

Have you plotted heat streams in Power BI/R? What were the most challenging aspects of your project?

We would love to know.

Thank you

R

Note: Next week we will be starting a series of blog posts on how we secure customers data with data anonymization and masking techniques. There are some incredible techniques that we use which give our customers 100% confidence in data security. 

Do subscribe to our blog posts to not miss our proven data masking techniques and other interesting articles.

Note: There is a custom visual for plotting heat streams in Power BI, but it cannot generate heat streams anything like what we have shown above.