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Total curvature of a knot

Tie a knot in a rope and join the ends together. At each point in the rope, compute the curvature,…

R-Squared Recipe

R-Squared RecipeCalculating R-squared from scratch. Andrew HBlockedUnblockFollowFollowingJun 18Source of image: linkR-squared can be abstruse to students learning data-science. Instead of introducing the…

Smooth Scrolling With JavaScript

Smooth Scrolling With JavaScriptA technical look at creating a library from scratchTarun DugarBlockedUnblockFollowFollowingMay 6Photo by Damon Lam on Unsplash (it’s a…

Python for Finance: Robo Advisor Edition

Python for Finance: Robo Advisor EditionExtending Stock Portfolio Analyses and Dash by Plotly to track Robo Advisor-like Portfolios. Kevin BollerBlockedUnblockFollowFollowingMay 1Photo…

Clean a complex dataset for modelling with recommendation algorithms

Clean a complex dataset for modelling with recommendation algorithmsMy take on Market Basket Analysis — Part 1 of 3Diego UsaiBlockedUnblockFollowFollowingMar 13OverviewRecently I wanted…

Visualizing the Scimago journal ranking database with Pandas

Visualizing the Scimago journal ranking database with PandasSaurav JhaBlockedUnblockFollowFollowingFeb 22SCImago Journal Rank (SJR indicator) is a measure of scientific influence of…

I want to use this animation (or an animation like this) for the user’s score to highlight the peaks and…

6 Effective Email Marketing Metrics to Measure Success

Allow me to introduce you to the Click Through Rate (CTR). CTR is the number of clicks on links within…

Cool CLIs in Elixir with IO.write/2

Done!") end def count(current) do IO. write(" #{current} ") Process. sleep(250) count(current – 1) endendCount. count(10)Great ProgressCool progress bar written…

4 Ways To Calculate A Running Total With SQL

4 Ways To Calculate A Running Total With SQLSeattleDataGuyBlockedUnblockFollowFollowingJan 13Calculating a running total/rolling sum in SQL is a useful skill to…

Doom Bots in TensorFlow

Total score: -404.0 Total score: -404.0 Total score: -404.0 Total score: -404.0 Total score: -404.0 Total score: -404.0 Total score:…

Forecasting variable Travel expenses with 95% accuracy

The goal will be to use the data up to 2017 to predict 2018’s total spend on expenses.Feature EngineeringThe dataset…

Topic Mining on Amazon Reviews

topics review.What can we do with Topic Mining?We have seen how you can implement topic modelling, but often the question is:…

Journey to Understand Bayes’ Theorem Visually

There is also a possibility for another event B to occur after A and the odds of that are denoted…

Data that illuminates the AI boom

The number of AI startups (top) is shown on the left, compared with total startups on the right..AI investment (below) is…

The Poisson Distribution

Also, as per condition 4, number of trials should be sufficiently bigger than number of successes, which is also violated…

How Well My Time Series Models Performed?

This will be accomplished simply by calculating the Absolute Error (AE), Root Mean Square Error (RMSE), and Root Mean Square…