6175 search results for "git"

Trying dplyr on triathon data

September 21, 2014
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Trying dplyr on triathon data

There was a triathlon in Almere last week, like every year since 1983. I pulled the data of all years to get some idea how things have changed in that sport. To get a visual I decided to plot the best 10% athletes. Then later I decided this was an idea...

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Brazilian Presidential Election

September 20, 2014
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Brazilian Presidential Election

TweetFor those who follow this tale, the chart below shows the hitherto of vote intentions among the viable candidates as reported in various polls. Data collected over 2012 were simply disregarded and those from 2013 enter in the model as prior values (covariance) for the 2014 estimates. The big dots at the end of the … Read More...

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Charting/Mapping the Scottish Vote with R (an rvest/dplyr/tidyr/TopoJSON/ggplot tutorial)

September 20, 2014
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Charting/Mapping the Scottish Vote with R (an rvest/dplyr/tidyr/TopoJSON/ggplot tutorial)

The BBC did a pretty good job live tracking the Scotland secession vote, but I really didn’t like the color scheme they chose and decided to use the final tally site as the basis for another tutorial using the tools from the Hadleyverse and taking advantage of the fact that newer gdal libraries can read

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Using the Debug Option in readDICOMfile()

September 20, 2014
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Using the Debug Option in readDICOMfile()

Some recent activity in stackoverflow was brought to my attention.  Specifically, several questions were raised with reading files into R using readDICOMFile() in the oro.dicom package. The questions did highlight some inadequacies in the code, an...

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Yep. He made it; country voted No

September 18, 2014
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Yep. He made it; country voted No

Yesterday, more Scots than ever since universal suffrage was introduced cast a ballot on the matter of independence. The turnout was itself phenomenal and that potentially implicates a series of questions for the government authorities and citizens. For the time being the sole question is: would this benefit one side or the other? The verdict favored the...

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The New Consumer Requires an Updated Market Segmentation

September 18, 2014
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The New Consumer Requires an Updated Market Segmentation

The new consumer is the old consumer with more options and fewer prohibitions. Douglas Holt calls it the postmodern market defined by differentiation: "consumer identities are being fragmented, proliferated, recombined, and turned into salabl...

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Pander tables inside of knitr

September 18, 2014
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Pander tables inside of knitr

Hadley Wickham opened my eyes that calling pander to generate nifty markdown tables inside of knitr requires a special chunk option, which bothersome extra step might be saved by updating pander a bit. So it's done.In a nutshell, whenever you...

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“Do You Want to Steal a Snowman?” – A Look (with R) At TorrentFreak’s Top 10 PiRated Movies List #TLAPD

September 18, 2014
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“Do You Want to Steal a Snowman?” – A Look (with R) At TorrentFreak’s Top 10 PiRated Movies List #TLAPD

We leave the Jolly Roger behind this year and turn our piRate spyglass towards the digital seas and take a look at piRated movies as seen through the lens of TorrentFreak. The seasoned seadogs who pilot that ship have been doing a weekly “Top 10 Pirated Movies of the Week” post since early 2013, and...

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Interactive Visualizations from R using rCharts

September 18, 2014
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At useR! 2014 Ramnath Vaidyanathan gave a tutorial and a presentation on one of his...

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Comparing machine learning models in R

September 18, 2014
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Comparing machine learning models in R

by Joseph Rickert While preparing for the DataWeek R Bootcamp that I conducted this week I came across the following gem. This code, based directly on a Max Kuhn presentation of a couple years back, compares the efficacy of two machine learning models on a training data set. #----------------------------------------- # SET UP THE PARAMETER SPACE SEARCH GRID ctrl <-...

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