Mangai Murugan, Author at Perficient Blogs
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Mangai Murugan

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How to Do Outliers Detection and Handling in Tableau

Outliers are considered as single points that are not part of 99% of datasets. Outliers represent the things that are present outside the normal experience. In this post, we will see how to detect these extreme outliers in Tableau. Steps for detecting Outliers in Tableau: I have used Tableau Superstore dataset for detecting these outliers. […]

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How to Create Advanced Tableau WOW Charts – BUMP Charts

Bump chart is used to effectively visualize ranking of dimension members across different measures over time. It is very easy to interpret from bump chart, how ranking of dimensions with respect to any measures varies over time. Steps to create BUMP charts in Tableau: I have used Tableau Superstore dataset for creating this BUMP charts. […]

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When and How to Use Cognos Dynamic Cubes

Cognos Dynamic Cubes is meant to provide high-performance interactive analysis of data. It is used when your data volume is over terabytes. They are used only for star or snowflake modeled data warehouses and provides in-memory relational OLAP functionality with aggregation. When to Use Cognos Dynamic Cubes Cognos Dynamic Cubes was developed to address the challenge of […]

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Five Ways to Resolve Data Quality Problems in Tableau

Data sets are not static. They are constantly being updated, which can affect the quality of data. Data quality monitoring helps to resolve data issues quickly and also provides quality data. There are various ways we can resolve data issues in Tableau without changing the original data sources. Renaming We can rename fields in the Data pane […]

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25+ Tips for Improving Tableau Performance

Best Practices and Methods for Improving Tableau Performance: A dashboard with multiple worksheets can sometimes take longer to load. Below, I have listed some techniques and practices that will be very helpful in solving your dashboard performance issues. When the Tableau Server is very slow or Tableau Workbooks takes longer to load, you can follow these tips to sort out the […]

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