650 search results for "knitr"

Recruiting Analysts for dynamic cutting edge public sector team

October 3, 2015
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Recruiting Analysts for dynamic cutting edge public sector team

The jobs Within the New Zealand Ministry of Business, Innovation and Employment, the Sector Trends team has recently secured resourcing for additional analysts on a range of statistical programmes. That’s the team that I usually manage, although for the next few months I’m doing a stint on a similar team, different topics. The formal details and position descriptions...

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The Discrete Charm of the Fourier Transform

September 29, 2015
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The Discrete Charm of the Fourier Transform

The other day, I picked up the latest copy of the CAS’ journal, Variance and skipped to the back where Leigh Halliwell had an article. I hope that I’m well on record as being one of his biggest fans, but if not, let me remedy that now. Leigh Halliwell has done really tremendous stuff. He’s mathematically sophisticated, but addresses...

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The Discrete Charm of the Fourier Transform

September 29, 2015
By
The Discrete Charm of the Fourier Transform

The other day, I picked up the latest copy of the CAS’ journal, Variance and skipped to the back where Leigh Halliwell had an article. I hope that I’m well on record as being one of his biggest fans, but if not, let me remedy that now. Leigh Halliwell has done really tremendous stuff. He’s mathematically sophisticated, but addresses...

Read more »

Version 0.9.0 of eeptools released!

September 22, 2015
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A long overdue overhaul of my eeptools package for R was released to CRAN today and should be showing up in the mirrors soon. The release notes for this version are extensive as this represents a modernization of the package infrastructure and the reim...

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Figure and Table Captions in Markdown

September 16, 2015
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Figure and Table Captions in Markdown

The Problem I have been attempting to use RMarkdown rather than LaTeX to produce R examples. One issue that has slowed my conversion has been my struggles with how to reference figures and tables. The examples below illustrate how I have been using captioner to solve this problem. The Solution Foundation For a simple example, I load FSAdata for the RuffeSLRH92...

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New features in checkpoint v0.3.15 now on CRAN

September 16, 2015
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New features in checkpoint v0.3.15 now on CRAN

by Andrie de Vries I am pleased to announce that we have released a new version of the checkpoint package to CRAN. The goal of checkpoint is to solve the problem of package reproducibility in R. Easy reproducible workflow using checkpoint() We first announced checkpoint and the Reproducible R Toolkit during October, 2014. In February, 2015, we then announced...

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Introducing tmlite – new framework for text mining in R

September 15, 2015
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Introducing tmlite – new framework for text mining in R

IMPORTANT NOTE Code from this post is outdated (package APIs were changed). See this post. Today I am pleased to present tmlite - small, but fast and robust package for text-mining tasks in R. It is not availible yet on CRAN, but you can install it directly from github: devtools::install_github("dselivanov/tmlite") Reasonable question is - why new package? R already has such great...

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Linear models with weighted observations

September 4, 2015
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Linear models with weighted observations

In data analysis it happens sometimes that it is neccesary to use weights. Contexts that come to mind include: Analysis of data from complex surveys, e.g. stratified samples. Sample inclusion probabilities might have been unequal and thus observations from different strata should have different weights. Application of propensity score weighting e.g. to correct data being

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Free R Help

September 3, 2015
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Free R Help

Today I am giving away 10 sessions of free, online, one-on-one R help. My hope is to get a better understanding of how my readers use R, and the issues they face when working on their own projects. The sessions will be over the next two weeks, online and 30-60 minutes each. I just purchased Screenhero, The post

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Correction For Spatial And Temporal Auto-Correlation In Panel Data: Using R To Estimate Spatial HAC Errors Per Conley

September 2, 2015
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Correction For Spatial And Temporal Auto-Correlation In Panel Data: Using R To Estimate Spatial HAC Errors Per Conley

Darin Christensen and Thiemo Fetzer tl;dr: Fast computation of standard errors that allows for serial and spatial auto-correlation. Economists and political scientists often employ panel data that track units (e.g., firms or villages) over time. When estimating regression models using such data, we often need to be concerned about two forms of auto-correlation: serial (within … Continue reading...

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