February 2016

Control Structures Loops in R

February 27, 2016 | suresh kumar Gorakala

As part of Data Science tutorial Series in my previous post I posted on basic data types in R. I have kept the tutorial very simple so that beginners of R programming  may takeoff immediately. Please find the online R editor at the end of the post...
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Principal Component Analysis using R

February 27, 2016 | suresh kumar Gorakala

Curse of Dimensionality:One of the most commonly faced problems while dealing with data analytics problem such as recommendation engines, text analytics is high-dimensional and sparse data. At many times, we face a situation where we have a large set of features and fewer data points, or we have data ...
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Japans ageing population, animated with R

February 26, 2016 | David Smith

The US Census makes a number of its databases available to developers via the Census API. One of those databases is the International Data Base, in which the Census department provides historic demographic breakdowns (population by age and sex) for many countries, along with projections through 2050. Kyle Walker created the ... [Read more...]

The making of a shiny mauc: chapter 2

February 26, 2016 | Trinostics LLC

This continues last week's post The making of a shiny mauc, based on Greg McNulty's mauc blog. It utilizes the RStudio interface to R, Desktop version.Recall, the goal is to make an online shiny app that will run Greg's code using his data, all supplied in his post. Today ...
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twilight zone [of statistics]

February 25, 2016 | xi'an

“I have decided that mixtures, like tequila, are inherently evil and should be avoided at all costs.” L. Wasserman Larry Wasserman once remarked that finite mixtures were like the twilight zone of statistics, thanks to the numerous idiosyncrasies associated with such models. And George Casella had similar strong reservations about ...
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Make dashboard Tiles/Notecards in R

February 25, 2016 | Amit

Dashboard Tiles/Notecards are a great way to visualize just one number, and make it big and pretty. They can emphasize results in an easily digestible and colourful format. I was surprised that there was no way to create tiles offline (there is however a very good online version in ...
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First steps with Non-Linear Regression in R

February 25, 2016 | Lionel Hertzog

Drawing a line through a cloud of point (ie doing a linear regression) is the most basic analysis one may do. It is sometime fitting well to the data, but in some (many) situations, the relationships between variables are not linear. In this case one may follow three different ways: (... [Read more...]

Generating and Visualizing Multivariate Data with R

February 25, 2016 | Joseph Rickert

By Joseph Rickert The ability to generate synthetic data with a specified correlation structure is essential to modeling work. As you might expect, R’s toolbox of packages and functions for generating and visualizing data from multivariate distributions is impressive. The basic function for generating multivariate normal data is mvrnorm() ... [Read more...]

Explore New Zealand’s Tourist Industry with R and Shiny

February 24, 2016 | David Smith

New Zealand's Ministry of Business, Innovation and Employment has just released the New Zealand Tourism Dashboard, an interactive application which allows NZ residents (and curious onlookers everywhere) to explore the economic impact of tourism in the far-flung nation. The dashboard is implemented using Shiny, and all of the graphics and ... [Read more...]

More Shiny user showcase demonstrations

February 24, 2016 | John Mount

We at Win-Vector LLC are very proud to announce that RStudio just inducted two more of our demonstration Shiny applications into their Shiny User Showcase gallery. Checkout the gallery to see our demonstrations of: Finding the k in k-means A/B test interactive design and analysis tool The geometry of ...
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