Blog Archives

Ooms Magical Polyglot World

July 26, 2016
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crossposted from BuildingWidgets Jeroen Ooms (@opencpu) provides R users a magical polyglot world of R, JavaScript, C, and C++. This is my attempt to both thank him and highlight some of all that he has done. Much of my new R depends on his work. Oo...

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visNetwork, Currencies, and Minimum Spanning Trees

May 22, 2015
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Just because I’m ignorant doesn’t mean I won’t try things.  Feel free to correct any ignorance that follows.  More than anything I would like to feature the new htmlwidget visNetwork.  I thought  the example from Minimum Spanning Trees in R a...

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Extracting Heatmap

March 11, 2015
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Inspired by this tweet, I wanted to try to do something similar in JavaScript. Very cool hack: Extracting the original data from a heatmap image with R vector ops #rstats http://t.co/Lbi6FCXdrI pic.twitter.com/LCabkMGjXY— Gregory Piatetsky (@kdnugge...

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Is Time Series Clustering Meaningless? (lots of dplyr)

March 5, 2015
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A kind reader directed me in a comment on Experiments in Time Series Clustering to this paper. Clustering of Time Series Subsequences is Meaningless: Implications for Previous and Future Research Eamonn Keogh  and Jessica Lin Computer Science & Engineering Department University of California – Riverside http://www.cs.ucr.edu/~eamonn/meaningless.pdf As I said in my last post, I don’t know...

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Experiments in Time Series Clustering

March 2, 2015
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Last night I spotted this tweet about the R package TSclust. Thank you Pablo and Jose for #TSclust - time series clustering package in #rstats ! http://t.co/GBQtQnQ8Lr— Pasha Roberts (@pasharoberts) March 2, 2015 I should start by saying that I really don’t know what I’m doing, so be warned.  I thought it would interesting to apply TSclust to...

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Financial Charts | Pan and Zoom

February 3, 2015
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The htmlwidget for Week 2 over at Building Widgets claims to add pan and zoom interactivity to almost all R charts.  Since their were no tests on financial charts, I thought I would try it out on a couple.  It really does work.  Here is an example ...

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Will I fail?

January 2, 2015
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I have committed to building an htmlwidget a week in 2015.  To isolate and separate the commitment from this blog, I set up a new site Building Widgets and Github repo.  The first post Can I Commit? provides meta introspection on commitment. Can I c...

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Widgets For Christmas

December 30, 2014
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For Christmas, I generally want electronic widgets, but after six months of development, all I wanted this Christmas was htmlwidgets, and Santa RStudio/jj,joe,yihui and Santa Ramnath delivered early with this RStudio tweet on December 17th. htmlwidget...

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Out of Nowhere–Explore Text on a Path

December 11, 2014
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I had not really stopped to think of this until I listened to this The Web Ahead podcast with Sara Soueidan.  What is really interesting about the tech world is how experts can seemingly pop up out of nowhere and become the authority on a topic.  In the podcast, this was the case with the interviewee Sara Soueidan.  We...

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Much Better Animated Paths | Christmas SVG

December 2, 2014
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Just after I made my really ugly animated turkey sketch (see post), I saw this much better set of Christmas icons in the Smashing Magazine Article Freebie Christmas Icon Set from Manuela Langella.  While I still remember how to do this, I thought I wo...

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