Chi-Square Test With More Than 2 Categories

I have just enrolled in a Data Science course on Udemy  and I learned good stuff. In this article, we will do a Chi-square test with more than 2 categories. We will use the A/B test « Country » which has 3 categories which corresponds to 3 countries : German, Spain and France. Select « Gender Actual » tab, make a copy with a right-click…

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Validate Data Mining In Tableau With A Chi-Square Test

I have just enrolled in a Data Science course on Udemy  and I learned good stuff. In this article we will start using statistics. Don't worry we'll do something simple, we'll use the Chi-square test in a basic way. There is a special section to learn how to do statistics at an advanced level. I'll explain why we're going to…

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Combine 2 charts

I have just enrolled in a Data Science course on Udemy  and I learned good stuff. We'll move to the next level. We'll work with 2 bar charts in parallel to have a more efficient data mining. In a previous article, we created 2 different bar charts. The 1st was an A/B test (actually, it's a classification test) that told…

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Create Bins and View Distributions

I have just enrolled in a Data Science course on Udemy  and I learned good stuff. It's cool, you finished the 1st part. Now we're going to do more deep Data Mining analysis with this bank's dataset. To make these analyzes more deep, we'll create a more statistical approach. To do that we will create a new tab. For this…

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A Pratical Tip To Validate Your Approach

I have just enrolled in a Data Science course on Udemy  and I learned good stuff. How was the A/B test « Number Of Product » ? Easy or difficult ? Here is the result I found. I think you noticed there was something bizarre. There is an anomaly. We imagine that the more the client has products, the more the client is satisfied…

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Work With An Alias

I have just enrolled in a Data Science course on Udemy and I learned good stuff. In the last article, I showed you how to do a simple A/B test. We will continue with the result we had with the A/B test. Here is the result of the A/B test. What is in orange is the percentage of men who left…

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Add a Reference Line

I have just enrolled in a Data Science course on Udemy  and I learned good stuff. In the previous article we learned how to work with aliases. We will learn how to add a reference line in our bar chart. Before I start, I'll show you a trick in Tableau. In our bar chart we can see the labels in…

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Label And Format

  I have just enrolled in a Data Science course on Udemy  and I learned good stuff. Our bar chart has colors by region but imagines that this bar chart is on a wall of an open space or in a report. With labels, we can make this bar chart more clear, easier to understand. In this bar chart, there…

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Masturbation And Sport

I watched a Jamcore DZ's video  and I learned good stuff. My intention is to explain masturbation's effect on a sport activity without being vulgar. Masturbation is a normal activity for some people and abnormal for others. In some religions, it's a forbidden or ignoble activity but it's an activity that most people do. Type of person The open minded…

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Add Color

I have just enrolled in a Data Science course on Udemy and I learned good stuff. Podcast: In the last article, we created our calculated field « TotalSales » that you can see in «Measure » zone. In Tableau, the calculated field is very used (almost every time) because in most case the data don’t give the value you want to show. The…

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