Blog Archives

More Polarized

October 9, 2013
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More Polarized

I have immersed myself in polar coordinates.  Here is another little reconstruction that I did.

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R in Raw

October 8, 2013
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This nice little tool Raw from DensityDesign transforms text from your clipboard to d3.  For those yearning to access Raw from R, here is an easy way to do it. Use this function read.excel from StatisticallySignificant’s post Copying Data from Excel to R and Back.  Once you run the function, your data will be copied...

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rCharts goes Polar

October 8, 2013
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rCharts goes Polar

The new micropolar library from Chris Viau, author of   gives us reusable charts with polar coordinates for d3.js.  In testament to rCharts design, Ramnath Vaidyanathan integrated micropolar with rCharts in less than 30 minutes.  I don’t use polar coordinates much, so I wrote this quick little comparison of Cartesian and...

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Simplicity Explained by The Author

October 4, 2013
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Simplicity Explained by The Author

Source is usually best explained by the source.  Ramnath Vaidyanathan provides an excellent look under the hood in his tutorial on rCharts explaining how he integrates the new d3 library uvCharts. If you want to explore further, here is a list of...

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Long Winding Road Marked with Error Bars and Tweets

September 27, 2013
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Long Winding Road Marked with Error Bars and Tweets

Not much finance here, but a lot of d3 and R.

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Ode to Systematic Clusters

September 25, 2013
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Ode to Systematic Clusters

Extending the d3 remixes of the fine work at Systematic Investor, I thought it woud be fun to do some dimple.js and nvd3 scatterplots of clusters of PIMCO mutual funds.  As always, I welcome thoughts, comments, and suggestions.  Click here or...

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Genetics to Finance – Amazed By Open Source d3 and r

September 19, 2013
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Genetics to Finance – Amazed By Open Source d3 and r

Open source amazes me by the speed of distribution and the power of iteration.  Take for example the very  fine combination of R and d3 provided here at http://www.biostat.wisc.edu/~kbroman/D3/.  The correlation matrix with scatterplot i...

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rCharts | PerformanceAnalytics Tables + Systematic Investor Cluster

September 12, 2013
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rCharts | PerformanceAnalytics Tables + Systematic Investor Cluster

I thought a good extension of the last post d3-ify Systematic Investor Cluster Weight would be to analyze the returns with every table that PerformanceAnalytics offers.  Since d3 interactive charts are way more fun than tables, let’s plot each table with dimplejs and rCharts. Click here or on the screenshot...

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d3-ify Systematic Investor Cluster Weight

September 9, 2013
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d3-ify Systematic Investor Cluster Weight

I have posted before about the brilliant R/finance work being done at Systematic Investor.  I just had to see what his cluster work would look like with d3 interactivity.  Click on the screenshot below or here to see an interactive recreation...

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Applications of Interactivity to Finance

August 28, 2013
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Applications of Interactivity to Finance

Of the nearly infinite ways of using crossfilter and dc.js in finance, the 2 that immediately came to my mind are signal analysis in system building and money manager analysis in due diligence.  My first very basic experiment explores a commonly k...

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