## Resources for the FPP book

September 3, 2014
By

The FPP resources page has recently been updated with several new additions including R code for all examples in the book. This was already available within each chapter, but the examples have been collected into one file per chapter to save copying and pasting the various code fragments. Slides from a course on Predictive Analytics from […]

Read more »

## Getting Quandl Data Into EViews

September 2, 2014
By

I've sung the praises of Quandl before - e.g., see here. What's not to like about millions of free time series data - especially when they're linked back to their original sources so that updating and accuracy is the least of your worries.If you can th...

Read more »

## Monotonic Sequential Continuity

September 2, 2014
By

This problem is the continuation of my previous post on Monotonic Sequence.ProblemProve the following: If $A_k$ is monotone, then \mathrm{P}\left(\displaystyle\lim_{n\to\infty} A_n\right)=\displaystyle\lim_{n\to \infty}\mathrm{P}(A_n)....

Read more »

## Questions about “Too Good to Be True”

September 2, 2014
By

Greg Won writes: I manage a team tasked with, among other things, analyzing data on Air Traffic operations to identify factors that may be associated with elevated risk. I think its fair to characterize our work as “data mining” (e.g., using rule induction, Bayesian, and statistical methods). One of my colleagues sent me a link […] The post Questions about “Too Good to Be True” appeared first on Statistical Modeling,…

Read more »

## FinancialConnectedness.org Site Now Up

September 2, 2014
By

The Financial and Macroeconomic Connectedness site is now up, thanks largely to the hard work of Kamil Yilmaz and Mert Demirer. Check it out at http://financialconnectedness.org. It implements the Diebold-Yilmaz framework for network connecte...

Read more »

## How to create a hexagonal bin plot in SAS

September 2, 2014
By

While I was working on my recent blog post about two-dimensional binning, a colleague asked whether I would be discussing "the new hexagonal binning method that was added to the SURVEYREG procedure in SAS/STAT 13.2." I was intrigued: I was not aware that hexagonal binning had been added to a […]

Read more »

## Zoom, zoom, googleVis

September 2, 2014
By

The Google Charts API is quite powerful and via googleVis you can access it from R. Here is an example that demonstrates how you can zoom into your chart. In the example below I set the maximum zoom level to 5% of the chart. Drag and pan with a left mo...

Read more »

## Attention Is Preference: A Foundation Derived from Brand Involvement Segmentation

September 1, 2014
By

"A wealth of information creates a poverty of attention."Herbert SimonWe categorize our world so that we can ignore most of it. In order to see figure, everything else must become ground. Once learned, the process seems automatic, and we forget how har...

Read more »

## Culturegraphy: the Cultural Influences and References between Movies

September 1, 2014
By

Culturegraphy [culturegraphy.com], developed by "Information Model Maker" Kim Albrecht reveals represent complex relationships of over 100 years of movie references. Movies are shown as unique nodes, while their influences are depicted as directed ...

Read more »

## Bad Statistics: Ignore or Call Out?

September 1, 2014
By

Evelyn Lamb adds to the conversation that Jeff Leek and I had a few months ago. It’s a topic that’s worth returning to, in light of our continuing discussions regarding the crisis of criticism in science. The post Bad Statistics: Ignore or...

Read more »

## On deck this week

September 1, 2014
By

Mon: Bad Statistics: Ignore or Call Out? Tues: Questions about “Too Good to Be True” Wed: I disagree with Alan Turing and Daniel Kahneman regarding the strength of statistical evidence Thurs: Why isn’t replication required before publication in top journals? Fri: Confirmationist and falsificationist paradigms of science Sat: How does inference for next year’s data […] The post On deck this week appeared first on Statistical Modeling, Causal Inference, and…

Read more »

## A new candidate for worst figure

September 1, 2014
By

Today I read a paper that had been submitted to the IJF which included the following figure along with several similar plots. (Click for a larger version.) I haven’t seen anything this bad for a long time. In fact, I think I would find it very difficult to reproduce using R, or even Excel (which […]

Read more »

## BayesFactor version 0.9.8 released to CRAN

September 1, 2014
By

BayesFactor version 0.9.8 has been released on CRAN! This is a both a bug fix and feature update. From the NEWS: Fixed bugs in model enumeration code Fixed bug leading to wrong computation of number of covariate when interactions between cont...

Read more »

## Beta binomial revisited

August 31, 2014
By

I got some comments on my priors of last week's post where better priors were proposed. Hence this week's post looks at them. After some minor adaptations, since I have nine beta parameters and beta needs to be fairly high, I can conclude that these pr...

Read more »

## Bigger Data Structures (Introduction to Statistical Computing)

August 30, 2014
By

Matrices as a special type of array; functions for matrix arithmetic and algebra: multiplication, transpose, determinant, inversion, solving linear systems. Using names to make calculations clearer and safer: resource-allocation mini-example. Lists ...

Read more »

## On deck this month

August 30, 2014
By

Bad Statistics: Ignore or Call Out? Questions about “Too Good to Be True” I disagree with Alan Turing and Daniel Kahneman regarding the strength of statistical evidence Why isn’t replication required before publication in top journals? Confirmationist and falsificationist paradigms of science How does inference for next year’s data differ from inference for unobserved data […] The post On deck this month appeared first on Statistical Modeling, Causal Inference, and…

Read more »

## Lab: Exponentially More Fun (Introduction to Statistical Computing)

August 30, 2014
By

In which we play around with basic data structures and convince ourself that the laws of probability are, in fact, right. (Or perhaps that R's random number generator is pretty good.) Also, we learn to use R Markdown. — Getting everyone rando...

Read more »

## September Reading List

August 29, 2014
By

In North America, Labo(u)r Day weekend is upon us. The end of summer. Back to school. Last chance to get some pre-class reading done!Blackburn, M. L., 2014. The relative performance of Poisson and negative binomial regression estimators. Oxford Bulleti...

Read more »

## Rainfall, Data Structures, Sequences (Introduction to Statistical Computing)

August 29, 2014
By

In which we practice working with data frames, grapple with some of the subtleties of R's system of data types, and think about how to make sequences. (Hidden agendas: data cleaning; practice using R Markdown; practice reading R help files) Assignme...

Read more »

## New study: vaccines prevent disease and death

August 29, 2014
By

According to an exciting new study, childhood vaccines are almost miraculously effective at preventing suffering and death due to infectious disease.Sadly, that is not actually a headline, because it doesn't generate clicks.  What does generate cl...

Read more »

## BREAKING THE LAW! (of likelihood): to keep their fit measures in line (A), (B 2nd)

August 29, 2014
By

1.An Assumed Law of Statistical Evidence (law of likelihood) Nearly all critical discussions of frequentist error statistical inference (significance tests, confidence intervals, p- values, power, etc.) start with the following general assumption about the nature of inductive evidence or support: Data x are better evidence for hypothesis H1 than for H0 if x are more probable under H1 than […]

Read more »

## Avoiding model selection in Bayesian social research

August 29, 2014
By

One of my favorites, from 1995. Don Rubin and I argue with Adrian Raftery. Here’s how we begin: Raftery’s paper addresses two important problems in the statistical analysis of social science data: (1) choosing an appropriate model when so much data are available that standard P-values reject all parsimonious models; and (2) making estimates and […] The post Avoiding model selection in Bayesian social research appeared first on Statistical Modeling,…

Read more »

## Monotonic Sequence

August 29, 2014
By

Analysis with Programming has recently been accepted as a contributing blog on Mathblogging.org, a blogosphere aiming to be the best place to discover mathematical writing on the web. And as a first post, being a member of the said site, I will do prov...

Read more »

 Tweet

Email: