3553 search results for "git"

The New 60/40

August 6, 2012
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The New 60/40

I want to share a brilliant idea and a great example from the You’re Looking at the Wrong Number post at the GestaltU blog. Today, I will focus on the section of this post that outlines simple steps to improve a typical 60/40 stock/bond portfolio by using risk allocation instead of dollar allocation, and targeting

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Vim-R-plugin: Installation

August 6, 2012
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Vim-R-plugin: Installation

On Ubuntu 12.04, I took to the following steps to install Vim-R-plugin: First I had to install timux: sudo apt-get installl tmux Having already installed vim-pathogen, I used git to clone to install vim-r-plugin and vim-screen plugin, which is also … Continue reading →

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Provincial Map using GADM

August 5, 2012
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Provincial Map using GADM

This blog demonstrates how to produce political/provincial boundary map (below) using R maptools and raster packages. ## Load required packageslibrary(maptools)library(raster) ## Download data from gadm.org adm <- getData('GADM', country='PHL',...

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The R-Podcast Episode 9: Adventures in Data Munging Part 1

August 5, 2012
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It’s great to be back with a new episode after an eventful break! This episode begins a series on my adventures in data munging, a.k.a data processing. I discuss three issues that demonstrate the flexibility and versatility R brings for recoding messy values, important inconsistent data files, and pinpointing problematic observations and variables. We also

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Getting Started Using R, Part 1: RStudio

August 4, 2012
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Getting Started Using R, Part 1:  RStudio

Despite my preference for SAS over R, there are some add-ons to “basic” R that I’ve found that have made my learning process way easier.  While I’m still in my infancy in learning R, I feel like once I found … Continue reading →Getting Started Using R, Part 1: RStudio is an article from randyzwitch.com,...

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Transformation of axes in R

August 4, 2012
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Transformation of axes in R

As a general rule, you should not transform your data to try to fit a linear model. But proportions can be tricky. If the proportion data do not arise from a binomial process (e.g., proportion of a leaf consumed by a caterpillar), then transformation is still the best option. In an excellent paper, David Warton*

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Horizon Plots in Base Graphics

August 3, 2012
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Horizon Plots in Base Graphics

for background please see prior posts More on Horizon Charts, Application of Horizon Plots, Horizon Plot Already Available, and Cubism Horizon Charts in R There are three primary graphics routes in R (base graphics, lattice, and ggplot2), and each have...

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CFP: AusDM 2012, deadline extended to 31 August 2012

August 2, 2012
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CFP: AusDM 2012, deadline extended to 31 August 2012

The Tenth Australasian Data Mining Conference (AusDM 2012) Sydney, Australia 5-7 December 2012 http://ausdm12.togaware.com/ Deadline extended to 31 August 2012 The Australasian Data Mining Conference has established itself as the premier Australasian meeting for both practitioners and researchers in data … Continue reading →

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unsupervised classification of a Landsat image in R: the whole story or part two

August 1, 2012
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unsupervised classification of a Landsat image in R: the whole story or part two

The main question when using remote sensed raster data, as we do, is the question of NaN-treatment. Many R functions are able to use an option like rm.NaN=TRUE to treat these missing values. In our case the kmeans function in R is not capable to use such a parameter. After reading the tif-files and creating

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More on Horizon Charts

August 1, 2012
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More on Horizon Charts

for background please see prior posts Application of Horizon Plots, Horizon Plot Already Available, and Cubism Horizon Charts in R Some feedback has led me to think that I might have been a little ambitious with my last post on horizon charts. I though...

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