Monthly Archives: May 2017

Conditional Generative Adversial Network with MXNet R package

May 31, 2017
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Conditional Generative Adversial Network with MXNet R package

This tutorial shows how to build and train a Conditional Generative Adversial Network (CGAN) on MNIST images. How GAN works A Generative Adversial Model simultaneously trains two models: a generator that learns to output fake samples from an unknown ...

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To eat or not to eat! That’s the question? Measuring the association between categorical variables

May 31, 2017
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To eat or not to eat! That’s the question? Measuring the association between categorical variables

1. Introduction I serve as a reviewer to several ISI and Scopus indexed journals in Information Technology. Recently, I was reviewing an article, wherein the researchers had made a critical mistake in data analysis. They converted the original categor...

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let there be progress

May 31, 2017
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let there be progress

The 'wrapr' package for use with dplyr programming - I’m the first to admit I’m not an R expert, (even duffers can blog about it though), but when I began thinking about writing some dplyr functions to help me create and analyse run chart...

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let there be progress

May 31, 2017
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let there be progress

The 'wrapr' package for use with dplyr programming - UPDATED POST I’m the first to admit I’m not an R expert, (even duffers can blog about it though), but when I began thinking about writing some dplyr functions to help me create and ana...

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let there be progress

May 31, 2017
By
let there be progress

The 'wrapr'package for use with dplyr programming - UPDATED POST I’m the first to admit I’m not an R expert, (even duffers can blog about it though), but when I began thinking about writing some dplyr functions to help me create and anal...

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Shiny: data presentation with an extra

May 31, 2017
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Shiny: data presentation with an extra

Shiny is an application based on R/RStudio which enables an interactive exploration of data through a dashboard with drop-down lists and checkboxes—programming-free. The apps can be useful for both the data analyst and the public. Shiny apps are based on the Internet: This allows for private consultation of the data on one’s own browser as … Continue reading Shiny:...

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Watch presentations from R/Finance 2017

May 31, 2017
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It was another great year for the R/Finance conference, held earlier this month in Chicago. This is normally a fairly private affair: with attendance capped at around 300 people every year, it's a somewhat exclusive gathering of the best and brightest minds from industry and academia in financial data analysis with R. But for the first time this year...

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VIF and multicollinearity diagnostics

May 31, 2017
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VIF and multicollinearity diagnostics

In the book I use the car package to get VIF and other multicollinearity diagnostics. I’ve occasionally found this breaks down (usually through mixing different versions of R on different machines at work home or on the move). I recently saw the mctest package and thought it would be useful to use that as a

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Bland-Altman/Tukey Mean-Difference Plots using ggplot2

May 31, 2017
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Bland-Altman/Tukey Mean-Difference Plots using ggplot2

A very useful data visualisation tool in science, particularly in medical and sports settings, is the Bland-Altman/Tukey Mean-Difference plot. When comparing two sets of measurements for the same variable made by different instruments, it is often required to determine whether the instruments are in agreement or not. Correlation and linear regression can tell us something… Continue reading Bland-Altman/Tukey Mean-Difference...

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RStudio Server Pro is now available on AWS Marketplace

May 31, 2017
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RStudio Server Pro is now available on AWS Marketplace

RStudio is excited to announce the availability of its flagship enterprise-ready integrated development environment for R in AWS Marketplace. RStudio Server Pro AWS is identical to RStudio Server Pro, but with turnkey convenience. It comes pre-configured with multiple versions of R, common systems libraries, and the most popular R packages. RStudio Server Pro AWS helps

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