Benjamin Nweke, Author at Towards Data Science https://towardsdatascience.com Publish AI, ML & data-science insights to a global community of data professionals. Mon, 15 Dec 2025 18:28:04 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.3 https://towardsdatascience.com/wp-content/uploads/2025/02/cropped-Favicon-32x32.png Benjamin Nweke, Author at Towards Data Science https://towardsdatascience.com 32 32 7 Pandas Performance Tricks Every Data Scientist Should Know https://towardsdatascience.com/7-pandas-performance-tricks-every-data-scientist-should-know/ Thu, 11 Dec 2025 13:30:00 +0000 https://towardsdatascience.com/?p=607878 What I've learned about making Pandas faster after too many slow notebooks and frozen sessions

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]]> Modern DataFrames in Python: A Hands-On Tutorial with Polars and DuckDB https://towardsdatascience.com/modern-dataframes-in-python-a-hands-on-tutorial-with-polars-and-duckdb/ Fri, 21 Nov 2025 17:00:00 +0000 https://towardsdatascience.com/?p=607702 How I learned to handle growing datasets without slowing down my entire workflow

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]]> What Building My First Dashboard Taught Me About Data Storytelling https://towardsdatascience.com/what-building-my-first-dashboard-taught-me-about-data-storytelling/ Tue, 04 Nov 2025 20:12:00 +0000 https://towardsdatascience.com/?p=607558 Why clarity beats complexity when turning data into stories people actually understand

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]]> Building a Command-Line Quiz Application in R https://towardsdatascience.com/building-a-command-line-quiz-application-in-r/ Sun, 05 Oct 2025 14:00:00 +0000 https://towardsdatascience.com/?p=607339 Practice control flow, input handling, and functions in R by creating an interactive quiz game.

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]]> The Crucial Role of Color Theory in Data Analysis and Visualization https://towardsdatascience.com/the-crucial-role-of-color-theory-in-data-analysis-and-visualization/ Thu, 11 Sep 2025 13:00:00 +0000 https://towardsdatascience.com/?p=607110 How research-backed color principles improved clarity and storytelling in my dashboards

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]]> My Most Valuable Lesson as an Aspiring Data Analyst https://towardsdatascience.com/my-most-valuable-lesson-as-an-aspiring-data-analyst/ Wed, 20 Aug 2025 19:42:44 +0000 https://towardsdatascience.com/?p=606908 What my internship taught me about the power of collaboration in data analysis.

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]]> How Microsoft Power BI Elevated My Data Analysis and Visualization Workflow https://towardsdatascience.com/how-microsoft-power-bi-elevated-my-data-analysis-and-visualization-workflow/ Tue, 27 May 2025 20:01:35 +0000 https://towardsdatascience.com/?p=606116 Explaining useful features every data analyst needs

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]]> Top 5 Python Programming Books for Data Scientists https://towardsdatascience.com/top-5-python-programming-books-for-data-scientists-af6caf4ff7b/ Wed, 03 Aug 2022 04:06:15 +0000 https://towardsdatascience.com/top-5-python-programming-books-for-data-scientists-af6caf4ff7b/ Great resources to take your career to the next level

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]]> How to Fix Kernel Error in Jupyter Notebook https://towardsdatascience.com/how-to-fix-kernel-error-in-jupyter-notebook-81619e195703/ Thu, 26 May 2022 19:07:42 +0000 https://towardsdatascience.com/how-to-fix-kernel-error-in-jupyter-notebook-81619e195703/ Make your python codes run smoothly

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]]> 3 Tips You Need to Be Successful in Data Visualization https://towardsdatascience.com/3-tips-you-need-to-be-successful-in-data-visualization-9b5225ab7afc/ Wed, 18 May 2022 19:53:33 +0000 https://towardsdatascience.com/3-tips-you-need-to-be-successful-in-data-visualization-9b5225ab7afc/ Your data is good - but you can make it better.

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]]> I Took 12 Data Science Courses For 3 Months – Here’s What I Wish I Knew Earlier https://towardsdatascience.com/i-took-12-data-science-courses-for-3-months-heres-what-i-wish-i-knew-earlier-67acc6baa73/ Tue, 14 Dec 2021 18:26:45 +0000 https://towardsdatascience.com/i-took-12-data-science-courses-for-3-months-heres-what-i-wish-i-knew-earlier-67acc6baa73/ The pros and cons of successfully taking a data science course.

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]]> 5 Steps To Choosing Great Data Visualizations for Your Data Science Projects https://towardsdatascience.com/5-steps-to-choosing-great-data-visualizations-for-your-data-science-projects-ce9d750b98b/ Thu, 18 Nov 2021 13:55:19 +0000 https://towardsdatascience.com/5-steps-to-choosing-great-data-visualizations-for-your-data-science-projects-ce9d750b98b/ Tips and resources to help you get started

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]]> 5 Habits I Learned From Successful Data Scientists at Microsoft https://towardsdatascience.com/5-habits-i-learned-from-successful-data-scientists-at-microsoft-aef16a4cfb9b/ Thu, 09 Sep 2021 12:48:01 +0000 https://towardsdatascience.com/5-habits-i-learned-from-successful-data-scientists-at-microsoft-aef16a4cfb9b/ If applied, they will change your career forever

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]]> 3 Rookie Mistakes To Avoid When Building Your Data Science Portfolio https://towardsdatascience.com/3-rookie-mistakes-to-avoid-when-building-your-data-science-portfolio-6451ccaebf2d/ Fri, 30 Jul 2021 13:14:32 +0000 https://towardsdatascience.com/3-rookie-mistakes-to-avoid-when-building-your-data-science-portfolio-6451ccaebf2d/ Here's what to do and what to avoid

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]]> 5 Powerful Features of Tableau That Will Make Your Data Visualization Projects Stand Out https://towardsdatascience.com/5-powerful-features-of-tableau-that-will-make-your-data-visualization-projects-stand-out-37291c737ec8/ Wed, 21 Jul 2021 15:05:03 +0000 https://towardsdatascience.com/5-powerful-features-of-tableau-that-will-make-your-data-visualization-projects-stand-out-37291c737ec8/ Data visualization just got easier

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]]> The One Piece of Advice That Changed My Life as a Data Scientist https://towardsdatascience.com/the-one-piece-of-advice-that-changed-my-life-as-a-data-scientist-4bb0d3e67b88/ Wed, 14 Jul 2021 16:46:31 +0000 https://towardsdatascience.com/the-one-piece-of-advice-that-changed-my-life-as-a-data-scientist-4bb0d3e67b88/ Programming is worthless if you can't create value

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]]> Why Smart Data Scientists Keep Failing Basic Data Science Interviews https://towardsdatascience.com/why-smart-data-scientists-keep-failing-basic-data-science-interviews-3a0f70f1fad8/ Mon, 21 Jun 2021 14:29:48 +0000 https://towardsdatascience.com/why-smart-data-scientists-keep-failing-basic-data-science-interviews-3a0f70f1fad8/ How to land every job opportunity

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]]> SQL Skills (if Mastered) Will Get You Better Data Science Opportunities https://towardsdatascience.com/sql-skills-if-mastered-will-get-you-better-data-science-opportunities-9f912d4f88d3/ Tue, 08 Jun 2021 13:20:29 +0000 https://towardsdatascience.com/sql-skills-if-mastered-will-get-you-better-data-science-opportunities-9f912d4f88d3/ How to take your career to the next level with SQL Data is generally complex to analyze, irrespective of what size you’re dealing with. Most data scientists and programmers are constantly looking for ways and tools to minimize bulky long log texts, to make comprehension easier and accurate. Many people think that they only need […]

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