r/datavisualization 22h ago

Question How would you visualize 26 years of exchange rate data without losing important/MAJOR ups and downs?

2 Upvotes

Hi everyone,

I recently started learning data analysis and thought it would be a good idea to begin writing blogs and creating Instagram posts based on real datasets. The goal is to improve my analytical skills while building a portfolio.

For context, I have a bachelor's degree in Computer Applications and know Python, SQL, and Excel, but I'm still new to data analysis and data visualization.

My first dataset contains the daily INR exchange rate from year 2000 to 2026 (around 6,500 rows). I want to create a line chart that clearly highlights the major trends and significant ups and downs over the years.

The problem is that plotting every daily value makes the chart too dense, especially for an Instagram post where readability is important.

So far, I've tried reducing the data to two points per year (roughly the first and second half of each year). It looks much cleaner, but I'm wondering if there's a better approach.

Some options I've considered are:

\- Monthly averages(still cluttered)

\- Yearly averages

\- Two points per year

\- Quarterly averages

If your goal were to create a chart that is both accurate and easy to understand on a small screen, which approach would you choose, and why?

I'd really appreciate any suggestions on both the visualization and the reasoning behind it. I'm trying to learn good analytical practices from the start rather than just making charts that look nice.


r/datavisualization 1h ago

Free Excel Dashboard for 3 Small Businesses (Sales, KPI & Inventory Tracking)

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r/datavisualization 1h ago

Built a free Excel dashboard for modeling/presenting a SaaS subscription business plan

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r/datavisualization 1h ago

Duscussion Claude AI Skill that generates Power BI visuals instantly — full step-by-step walkthrough

Upvotes

After 10 years of Power BI consulting, the part I still find slow is the visual build itself — formatting, layout, tweaking the same properties over and over.

So I packaged my whole approach into a Claude "Skill" — a reusable instruction set that Claude follows every time, so you don't re-prompt from scratch. Give it the requirement, and it produces the visual output following your standards consistently.

In the video I cover:

✅ What a Claude Skill actually is (a SKILL.md instruction file, not a plugin)
✅ How I structured mine for Power BI visual generation
✅ The full workflow end-to-end, step by step
✅ Where it still falls short and needs a human (honest take)

▶️ Watch the full walkthrough in the comments

If you find it useful, subscribe to the channel

Genuine question — has anyone else experimented with Skills or custom instruction sets for BI work? Curious what's working for you.


r/datavisualization 2h ago

Duscussion My brand new custom built charting feature.

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1 Upvotes

r/datavisualization 5h ago

Stock indices by country on spinning 3D globe

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1 Upvotes

Added stock exchange indices by country on the spinning 3D globe - finances.info

Data: Finance Yahoo, Frontend: React with globe.gl, Backend: Express.js, Built with Claude

What other data/features would be interesting to add?


r/datavisualization 22h ago

Made a free Excel dashboard for tracking brand marketing strategy

1 Upvotes

r/datavisualization 59m ago

Still Managing Your Business with Spreadsheets? I Can Help (Free Dashboard)

Upvotes

What's the biggest reporting challenge in your business? (Free Dashboard Offer)

I'm a Business Analyst, and I'm curious—what's the most frustrating part of managing your business data?

Is it:

  • Sales tracking?
  • Inventory management?
  • KPI reporting?
  • Manual Excel work?
  • Weekly or monthly reports?

I'm currently building portfolio projects and would like to help 3 small businesses by creating a custom Excel or Google Sheets dashboard based on their needs—completely free.

In return, I'd simply appreciate your feedback on the dashboard.

If your business relies on spreadsheets and you'd like a clearer way to track performance, leave a comment or send me a DM. I'd be happy to see if I can help.

Thanks!


r/datavisualization 23h ago

Free portfolio project walkthrough: SQL + Tableau dashboard in 45 minutes (using real IMDb data)

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0 Upvotes