โ† Lab 5.2 ยท Lab

Tools & Calculators: Practical Utilities

An interactive calculator for machine learning evaluation, plus Pinnacle apps for your own datasets and business planning. More tools are planned.

๐Ÿงช Interactiveโ€ขUpdated: October 2025
Opening

Tools solve immediate practical problems that practitioners encounter daily. The calculator below runs in your browser, and the Pinnacle apps further down open in their own tabs. New tools will be added here as they are built.

Try it live

Interactive Calculator

A calculator that runs entirely in your browser.

Try it live

ROC Curve Generator

Paste prediction scores and labels below โ€” the curve, AUC and optimal threshold recompute instantly, rendered locally with d3.

No data yet โ€” load the sample or paste your own scores and labels above.

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AUC
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Optimal Threshold (Youden's J = โ€”)

Sensitivity
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Specificity
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FPR
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PPV
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Samples
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Prevalence
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Positives: โ€” ยท Negatives: โ€”

Go further

Pinnacle apps to try on your own work

These are separate Pinnacle apps for putting this into practice โ€” they open in a new tab, look different from this site, and some need an account.

Pinnacle tool

Data Analyst (opens in new tab)

Autonomous dataset analysis by Pinnacle Tech Solutions: profiling, normalisation and stakeholder-ready documentation.

  • Data Science

Sign in required

datanalytics.pinnacletechsolutions.co.uk

Pinnacle tool

Business Metrics (opens in new tab)

Estimate ROI, project timelines and team size in your browser, with nothing sent to a server.

  • Data Science
  • Business Analysis

No account needed

dsbusiness.pinnacletechsolutions.co.uk