Win-Vector LLC, Nina Zumel and I are pleased to announce that ‘vtreat’ version 0.5.27 has been released on CRAN. vtreat is a data.frame processor/conditioner that prepares real-world data for predictive modeling in a statistically sound manner. (from the package documentation) Very roughly vtreat accepts an arbitrary “from the wild” ... [Read more...]

摊子 文档：datos-TLC-Chile-China.xlsx 平滑子：Adobe Heiti library(XLConnect) library(ggplot2) library(grid) library(gridExtra) library(RColorBrewer) library(scales) library(plyr) library(cowplot) file [Read more...]

This short post is exactly what it seems: a showcase of all ggplot2 themes available within the ggplot2 package. I was doing such a list for myself (you know that feeling …”how would it look like with this theme? let’s try this one…”) and at the end I thought ... [Read more...]

When testing trading strategies a common approach is to divide the initial data set into in sample data: the part of the data designed to calibrate the model and out of sample data: the part of the data used to validate the calibration and ensure that the performance created in ... [Read more...]

Tweet I know that venn diagrams are not as sexy as they used to be and that John Venn’s birthday was actually Aug 4, but venn diagram’s still serve a purpose here and there, especially if we can get some more interesting colors in there. Plus, ... [Read more...]

Tweet I know that venn diagrams are not as sexy as they used to be and that John Venn’s birthday was actually Aug 4, but venn diagram’s still serve a purpose here and there, especially if we can get some more interesting colors in there. Plus, ... [Read more...]

The banxicoR package is now available on CRAN. Much like inegiR this package aims to bring official Mexican data easily into R, in this case by scrapping iqy calls to the SIE (Sistema de Información Económica) webservice of the Bank of Mexico. Introduction The major difference with inegiR ... [Read more...]

As a new lightweight and flexible deep learning platform, MXNet provides a portable backend, which can be called from R side. MXNetR is an R package that provide R users with fast GPU computation and state-of-art deep learning models. In this post, We... [Read more...]

As a new lightweight and flexible deep learning platform, MXNet provides a portable backend, which can be called from R side. MXNetR is an R package that provide R users with fast GPU computation and state-of-art deep learning models. In this post, We have provided several high-level APIs for recurrent ... [Read more...]

I saw this tweet making the rounds this past week. Half of all Americans live in the red counties, half live in the orange counties pic.twitter.com/ptBXNbzSFQ— Conrad Hackett (@conradhackett) August 8, 2016 Interesting! I saw people using this map to make the argument that the Electoral College was super ... [Read more...]

In this post, I will show you how to quickly create your website, blog and first posts. This is designed for R users only. Philosophy This had to be free. This had to be easy. This had to only need RStudio and GitHub. Every content had to be preview... [Read more...]

[Read more...]

I am currently working on an updated posting of my tutorial Ternary Diagrams Using R: An Example Using Election Outcomes. The new tutorial will explore using ternary diagrams to track shifts in support for presidential candidates in the 2016 US preside... [Read more...]

The banxicoR package is now available on CRAN. Much like inegiR this package aims to bring official Mexican data easily into R, in this case by scrapping iqy calls to the SIE (Sistema de Información Económica) webservice of the Bank of Mexico. Introduction The major difference with inegiR ... [Read more...]

Data Scientist David Robinson caused a bit of a stir in the media when he analyzed Donald Trump's tweets and revealed that those sent from an Android device were likely sent by the candidate himself, while those sent from an iPhone were likely sent by campaign staffers. The difference? As ... [Read more...]

If you know R, you could building simple, accurate decision rules today with this sweet new package. The post Turn your tough decisions into simple rules appeared first on Decision Science News. [Read more...]

My criticism of R‘s numeric summary() method is: it unfaithful to numeric arguments (due to bad default behavior) and frankly it should be considered unreliable. It is likely the way it is for historic and compatibility reasons, but in my opinion it does not currently represent a desirable set ... [Read more...]

YAML to define hierarchic models Glenn is using the data.tree package to model commercial mortgage-backed securities. If you don’t know what that is, you can read it all up on Wikipedia. But in a nutshell, CMBS (or REMIC) are financial instruments that bundle multiple commercial real estate mortgages, ... [Read more...]

[Read more...]

Data science Data science is a critical component of many domains of research including the domain I primarily function – ecology. However, in teaching biostatistics within the university context, we have typically focussed on the statistics and less on the science of data (i.e. handling, understanding, and manipulating data). This ... [Read more...]