Searching for SignificanceI just wanted to give a shout out to check out this post by Bob Muenchen on his excellent blog r4stats.com for his exceptional post a little over a year ago entitle "R Handles Big Data". [Read more...]

The Famous Julia First off, I am not going to talk much about Julia's speed. Everybody has seen the tables and graphs showing how in this benchmark or another, Julia is tens times or a hundred times faster than R.  Most blog posts talking about Julia test the generality of ... [Read more...]

Okay okay.  The joke is up.  Besides likely necessitating an emergency call to from the Stata Management Team to the Stata Legal Team, my post on April 1st of 2014 entitled "RStata: Stata Fully Mapped into R", was intended as a practical joke... [Read more...]

BitsanityThe awesome folks at Quandl (an amazing data collection and distribution service) have been so kind as to allow me to write for their blog.In my first post for them I demonstrate (with detailed R code) how a user of their free data services co... [Read more...]

Image by Ennio Pozzetti   In this post I will explore some of the movements in markets in recent years, these movements have caught many by surprise resulting in some people unexpectedly striking it rich while others have lost a great deal. I am no financial advisor, nor do I have ... [Read more...]

[This article was first published on Econometrics by Simulation, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to [Read more...]

Trading Ethos for LogosUp until very recently (the last 10 years) it has been uncommon for social science researchers to share their data even when the sharing would neither compromise the private information of the subjects nor the validity of the stu... [Read more...]

The Homeless EconometricianThe amazing growth and success of CRAN (Comprehensive R Archive Network) is marked by the thousands of packages have been developed and released by a highly active user base.  Yet even so, one of the founders and primary... [Read more...]

Hello all of you Stata loving statistical analysts out there!  I have great news.  I am finally nearly done with the package I have been working on which provides the mechanism for Stata users to seamlessly move from Stata to R though use of ... [Read more...]

In this post I will go through 5 reasons: zero cost, crazy popularity, awesome power, dazzling flexibility, and mind-blowing support. I believe R is the best statistical programming language to learn. As a blogger who has contributed over 150 posts in Stata and over 100 in R I have extensive experience with both ... [Read more...]

Imagine that we have a treatment that we give to five different groups of individuals.  Each individual has a variable response which as a unique mean and variance based on the treatment.  We do not know how the means will change but we belie... [Read more...]

[This article was first published on Econometrics by Simulation, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to [Read more...]

In this post I will explore public data being collected by Slate.  I previously released code using a much early set of this data demonstrating how to turn this data into an animated map.This data began collection as a public response to the horri... [Read more...]

How's that fried pickle sandwich treating you?  Perhaps your taste in R  functions are less bizarre than your taste in R commands?Now you can easily find out using this new shiny app!  In this post I use the R function frequency table co... [Read more...]

The Star Puzzle is a puzzle presented on The Math Forum.  I became aware of this problem by noticing the article and solution posted on Quantitative Decisions article section. It asks the question, "How many triangles, quadrilaterals, and irregula... [Read more...]

In this post I will demonstrate in R how to draw correlated random variables from any distributionThe idea is simple.  1. Draw any number of variables from a joint normal distribution. 2. Apply the univariate normal CDF of variables to derive pro... [Read more...]

In serveral previous posts I have posted shiny applications which temporarily store data on shiny servers such as hit counters or the survey tool which I created,  These do not work in the long term since shiny will restart its servers without war... [Read more...]

I have created a stick figure generating function for the purposes of adding a human figure as a demonstration of scale to some of my graphs as well as potentially emoticons to my shiny/concerto applications.You can change basic graphing parameters li... [Read more...]

It is a well known problem that in some models as the number of observations becomes large, econometric estimators fail to converge on consistent estimators.  The leading case of this is when estimating a binary response model with panel data with... [Read more...]

It is common for researchers to be concerned about unobserved effects being correlated with observed explanatory variables.For instance, if we were curious about the effect of meditation on emotional stability we may be concerned that there might be so... [Read more...]