2151 search results for "map"

Forecasting In R: The Greatest Shortcut That Failed The Ljung-Box

August 27, 2011
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Forecasting In R: The Greatest Shortcut That Failed The Ljung-Box

Okay so you want to forecast in R, but don't want to manually find the best model and go through the drudgery of plotting and so on.  I have recently found the perfect function for you.  Its called auto.arima and it automatically fits the bes...

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SIGKDD 2011 Conference — Days 2/3/4 Summary

August 27, 2011
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SIGKDD 2011 Conference — Days 2/3/4 Summary

<< My review of Day 1. I am summarizing all of the days together since each talk was short, and I was too exhausted to write a post after each day. Due to the broken-up schedule of the KDD sessions, I group everything together instead of switching back and forth among a dozen different topics. By far the most enjoyable...

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25+ more ways to bring data into R

August 26, 2011
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25+ more ways to bring data into R

The rdatamarket post on the Revolutions blog and this post on Decision Stats reminded me about my list of Data APIs/feeds available as packages in R on Cross-Validated (which is a great site that you all should use).  Many of these packa...

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Because it’s Friday: Spurious correlation edition

August 26, 2011
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Because it’s Friday: Spurious correlation edition

If the Flight of the Concords taught me anything, it's that you can't trust Australians. This morning I was poking around the DataMarket site, when I noticed something suspicious about Australian sheep production: I decided to investigate further: ju...

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Quick labels within figures

August 26, 2011
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Quick labels within figures

One of the coolest R packages I heard about at the useR! Conference: Toby Dylan Hocking‘s directlabels package for putting labels directly next to the relevant curves or point clouds in a figure. I think I first learned about this idea from Andrew Gelman: that a separate legend requires a lot of back-and-forth glances, so

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Examples on Clustering with R

August 25, 2011
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Examples on Clustering with R

R code examples on various clustering techniques are available as “Clustering in R” in Chapter 4 of R & Bioconductor Manual by Thomas Girke, UC Riverside. It provides R examples on - Hierarchical Clustering, including tree cutting/coloring and heatmaps, - … Continue reading →

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"My interpretation of [Leland Wilkinson’s] grammar [of statistical graphics]: —Data is the most…"

August 25, 2011
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"My interpretation of [Leland Wilkinson’s] grammar [of statistical graphics]: —Data is the most…"

“My interpretation of grammar : —Data is the most important thing, and the thing that you bring to the table. —Geometric objects … what you actually see on the plot: points, lines, polygons, etc. ...

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"My interpretation of [Leland Wilkinson’s] grammar [of statistical graphics]: —Data is the most…"

August 25, 2011
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"My interpretation of [Leland Wilkinson’s] grammar [of statistical graphics]:
—Data is the most…"

“My interpretation of grammar : —Data is the most important thing, and the thing that you bring to the table. —Geometric objects … what you actually see on the plot: points, lines, polygons, etc. ...

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Comparison of ave, ddply and data.table

August 25, 2011
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Comparison of ave, ddply and data.table

A guest post by Paul Hiemstra. ———— Fortran and C programmers often say that interpreted languages like R are nice and all, but lack in terms of speed. How fast something works in R greatly depends on how it is implemented, i.e. which packages/functions does one use. A prime example, which shows up regularly on

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The Open Governance Index: Results for The R Project

August 24, 2011
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Just over two weeks ago, I invited readers to complete the Open Governance Index (OGI) Questionnaire regarding The R Project. The OGI evaluates several facets of governance in open source projects (OGI publication). The OGI questionnaire is reproduced below, and each question is linked from the table of useR responses. The table below presents the

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