4143 search results for "git"

Data Visualization for Education

February 3, 2013
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Recently I was invited to give a talk to two cohorts of Strategic Data Project fellows. I was asked to speak about using data visualization to help inform decision-making of policy makers. At the same time, the group had a lot of variation in their int...

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Japanese Government Bonds (JGB) Total Return Series

February 3, 2013
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Japanese Government Bonds (JGB) Total Return Series

In a follow up to Yen and JGBs Short-Term vs Long Term and a series of posts on Japan, I thought the Bloomberg article "Japan Pension Fund’s Bonds Too Many If Abe Succeeds, Mitani Says" was particularly interesting.  It is difficult to find a to...

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An Example of Seasonality Analysis

February 3, 2013
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An Example of Seasonality Analysis

Today, I want to demonstrate how easy it is to create a seasonality analysis study and produce a sample summary report. As an example study, I will use S&P Annual Performance After a Big January post by Avondale Asset Management. The first step is to load historical prices and find Big Januaries. All the hard

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The Rcpp Gallery and my Seinfeld Streak

February 3, 2013
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A good three weeks ago, we introduced the Rcpp Gallery. While this is a joint effort by several of us on the Rcpp team, the backend was conceived and implemented entirely by JJ who also bootstrapped it with same first content, drawing on posts by Ha...

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The Rcpp Gallery and my <em>Seinfeld Streak</em>

February 3, 2013
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A good three weeks ago, we introduced the Rcpp Gallery. While this is a joint effort by several of us on the Rcpp team, the backend was conceived and implemented entirely by JJ who also bootstrapped it with same first content, drawing on posts by Ha...

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Arc Diagrams in R: Les Miserables

February 3, 2013
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Arc Diagrams in R: Les Miserables

In this post we will talk about the R package “arcdiagram” for plotting pretty arc diagrams like the one below: Arc Diagrams An arc diagram is a graphical display to visualize graphs or networks in a one-dimensional layout. The main idea is to display nodes along a single axis, while representing the edges or connections … Continue reading...

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A package for agricultural statistic: FAOSTAT

February 3, 2013
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After 8 years of using R, today I finally become a contributor to the community and released my first package, FAOSTAT.The package is designed to provide user with direct access to the FAOSTAT data base via R and to support the...

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Scatterplot with marginal boxplots

February 3, 2013
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Scatterplot with marginal boxplots

Using R and ggplot2 to draw a scatterplot with the two marginal boxplotsDrawing a scatterplot with the marginal boxplots (or marginal histograms or marginal density plots) has always been a bit tricky (well for me anyway). The approach I take here is, first, to draw the three separate plots using ggplot2:the scatterplot;the horizontal boxplot to appear in the...

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InstallOldPackages: a repmis command for installing old R package versions

February 3, 2013
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A big problem in reproducible research is that software changes. The code you used to do a piece of research may depend on a specific version of software that has since been changed. This is an annoying problem in R because install.packages only installs the most recent version of a package. It can be tedious to collect the old...

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qdap 0.2.0 released

February 2, 2013
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qdap 0.2.0 released

This is the first CRAN release of qdap (qdap 0.2.0) found here.  qdap (Quantitative Discourse Analysis Package) is an R package designed to assist in quantitative discourse analysis. The package stands as a bridge between qualitative transcripts of dialogue and … Continue reading →

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