1632 search results for "excel"

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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analyze the panel study of income dynamics (psid) with r

October 7, 2013
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the panel study of income dynamics (psid) is a one-trick pony.  better than anything else out there, this survey allows you to answer the question, "where are they now?"  after tracking the same nationally-representative cohort of americans (...

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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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Nice tutorials to discover R

September 28, 2013
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A series of tutorials, in R, by Anthony Damico. As claimed on http://twotorials.com/, “how to do stuff in r. two minutes or less, for those of us who prefer to learn by watching and listening“. So far, 000 what is r? the lingua statistica, s’il vous plaît 001 how to download and install r 002 simple shortcuts for the windows r...

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Making of elliplot package

September 28, 2013
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Making of elliplot package

The elliplot package is my first package for R.  So I want to write down details of making that, both for myself and for people following. original source The ellipseplot … Continue reading →

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Conditional Formatting Tables using R

September 28, 2013
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One thing that I had the opportunity to develop while working last year at Saint Paul Public Schools was figuring out a quick, easy, and painless way to do interactive report generation. When I arrived in the REA department at Saint Paul Public Schools, the report generation process was roughly as follows: 1. Do the analysis in SPSS...

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elliplot 1.1.0 package released

September 27, 2013
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elliplot 1.1.0 package released

I released R package elliplot version 1.1.0. This package contains ellipseplot and midpoints. It is to visualize a correlation between 2 sets of independent observation with common factors.  Details are … Continue reading →

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Working with intraday data

September 24, 2013
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When working with intraday data, analysts are often facing a large dataset problem. R is well equipped to deal with this but the standard approach has to be modified in some ways. Large dataset means different things to different people. I’m talking here about a dataset of less than 10 columns and 2 to 5

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Munkres’ Assignment Algorithm with RcppArmadillo

September 24, 2013
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Munkres’ Assignment Algorithm with RcppArmadillo

Munkres’ Assignment Algorithm (Munkres (1957), also known as hungarian algorithm) is a well known algorithm in Operations Research solving the problem to optimally assign N jobs to N workers. I needed to solve the Minimal Assignment Problem for a relabeling algorithm in MCMC sampling for finite mixture distributions, where I use a random permutation Gibbs sampler. For each sample...

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A few gotchas with R date-time classes

September 21, 2013
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Date and time handling is essential to many modelling and analysis exercises, in R and other languages used for scientific computing. Over the past few months I tackled the mapping of date-time concepts between R and the .NET framework as part of the w...

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