801 search results for "RSTUDIO"

Interactive two-host SIR model

February 20, 2013
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Interactive two-host SIR model

This is an example of interfacing R, shiny, and deSolve to produce an interactive environment where users can explore model behavior by altering parameters in an easy to use GUI.The model tracks the number of susceptible, infectious, and recovered individuals in two co-occuring host species. The rates of change for each class are represented as a system of differential...

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Interactive two-host SIR model

February 20, 2013
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This is an example of interfacing R, shiny, and deSolve to produce an interactive environment where users can explore model behavior by altering parameters in an easy to use GUI.The model tracks the number of susceptible, infectious, and recovered individuals in two co-occuring host species. The rates of change for each class are represented as a system of...

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metvurst now a package (repository moved to GitHub)

February 18, 2013
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metvurst now a package (repository moved to GitHub)

Inspired by a post on PirateGrunt, I finally managed to pack metvurst up and turn it into a proper R-Package (the fact that I'm on holiday and have some time also helped). As a side-effect of this, the repository has been moved from google code to G...

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New Rcpp master class scheduled for New York

February 18, 2013
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A new Rcpp master class is scheduled for March 9 in New York. The format will an updated version of the one-day workshops I have given at the University of Rochester in 2010, in San Franciso in 2011 (organised by Revolution Analytics) and at the UseR...

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Sector Rotation Back Test Shiny web application

February 18, 2013
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Sector Rotation Back Test Shiny web application

Today, I want to share the Sector Rotation Back Test application (code at GitHub). This is the last application in the series of examples (I have shared 5 examples) that will demonstrate the amazing Shiny framework and Systematic Investor Toolbox to analyze stocks, make back-tests, and create summary reports. The motivation for this series of

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Change fonts in ggplot2, and create xkcd style graphs

February 17, 2013
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Change fonts in ggplot2, and create xkcd style graphs

Installing and changing fonts in your plots comes now easy with the extrafonts-package. There is a excellent tutorial on the extrafonts github site, still I will shortly demonstrate how it worked for me. First, install the package and load it. You can now install the desired system fonts (at the moment only TrueType fonts): The

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Interactive stage-structured population model

February 16, 2013
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Interactive stage-structured population model

This is an example of interfacing R and shiny to allow users to explore a biological model often encountered in an introductory ecology class. We are interested the growth of a population that is composed of multiple, discrete stages or age classes. Patrick H. Leslie provides an in-depth derivation of the model in his 1945 paper “On the...

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Interactive stage-structured population model

February 16, 2013
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Interactive stage-structured population model

This is an example of interfacing R and shiny to allow users to explore a biological model often encountered in an introductory ecology class. We are interested the growth of a population that is composed of multiple, discrete stages or age classes. Patrick H. Leslie provides an in-depth derivation of the model in his 1945 paper “On the...

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Market Filter Back Test Shiny web application

February 15, 2013
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Market Filter Back Test Shiny web application

Today, I want to share the Market Filter Back Test application (code at GitHub). This is the forth application in the series of examples (I plan to share 5 examples) that will demonstrate the amazing Shiny framework and Systematic Investor Toolbox to analyze stocks, make back-tests, and create summary reports. The motivation for this series

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January Seasonality Shiny web application

February 14, 2013
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January Seasonality Shiny web application

Today, I want to share the January Seasonality application (code at GitHub). This example is based on the An Example of Seasonality Analysis post. This is the third application in the series of examples (I plan to share 5 examples) that will demonstrate the amazing Shiny framework and Systematic Investor Toolbox to analyze stocks, make

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