Introduction Data Minimum and maximum Range Mean Median First and third quartile Other quantiles Interquartile range Standard deviation and variance Summary Coefficient of variation Mode Contingency table Barplot Histogram Boxplot Scatterplot QQ-plot For a single variable By groups Density plot Introduction This article explains how to compute the main descriptive ...

One of the main challenges that every data scientist face is model deployment. Unless you are one of the lucky few who has loads of data engineers to help you deploy a model, it’s really an issue in enterprise projects. I am not even implying that the model needs ...

A very quick Riddler’s riddle last week with the question Find the (integer) fraction with the smallest (integer) denominator strictly located between 1/2020 and 1/2019. and the brute force resolution for (t in (2020*2019):2021){ a=ceiling(t/2020) if (a*2019

Version 0.2.1 of the modelStudio package reached CRAN this week. Let me shortly overview coolest new features (list of all changes).Short reminder: The modelStudio package creates an interactive serverless D3.js dashboard for exploration of predictive ...

Robust deployment of beautiful dashboards.Example Flexdashboard. From shinyapps.ioThis is part two of a growing series on data reporting with micro services. For building this dashboard see part one, Shiny Dashboards with Flexdashboard. For deploying d...

Product price estimation and prediction is one of the skills I teach frequently - It's a great way to analyze competitor product information, your own company's product data, and develop key insights into which product features influence product price...

Intro We’ve seen on a previous post that one of the main differences between classic ML and Causal Inference is the additional step of using the correct adjustment set for the predictor features. In order to find the correct adjustment set we need...

Run code Insert a comment in R and R Markdown Knit a R Markdown document Code snippets Ordered list in R Markdown New code chunk in R Markdown Reformat code RStudio addins {pander} for aesthetics Extract equation model with {equatiomatic} Pipe oper...

A Standard Problem: Determining Sample Size Recently, I was tasked with a straightforward question: "In an A/B test setting, how many samples do I have to collect in order to obtain significant results?" As ususal in statistics, the answer is not quit...

Getting Your Setup Ready Gathering Data Visualizing the Data I thought this only happened in my country (Perú), but it turns out it happens to people around the globe, you contract an Internet Service Plan that offers up to X Mbps, where X is an impressive value (relative to each ...