3886 search results for "git"

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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Video: Data Mining with R

February 15, 2013
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Yesterday's Introduction to R for Data Mining webinar was a record setter, with more than 2000 registrants and more than 700 attending the live session presented by Joe Rickert. If you missed it, I've embedded the video replay below, and Joe's slides (with links to many useful resources) are also available. During the webinar, Joe demoed several examples of...

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Clustering Loss Development Factors

February 15, 2013
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Clustering Loss Development Factors

  Anytime I get a new hammer, I waste no time in trying to find something to bash with it. Prior to last year, I wouldn’t have known what a cluster was, other than the first half of a slang term used to describe a poor decision-making process. Now I’ve seen it in action a

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FillIn: a function for filling in missing data in one data frame with info from another

February 15, 2013
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Sometimes I want to use R to fill in values that are missing in one data frame with values from another. For example, I have data from the World Bank on government deficits. However, there are some country-years with missing data. I gathered data from ...

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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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GPS Basemaps in R Using get_map

February 14, 2013
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GPS Basemaps in R Using get_map

There are many different maps you can use for a background map for your gps or other latitude/longitude data (i.e. any time you're using geom_path, geom_segment, or geom_point.)get_mapHelpfully, there's just one function that will allow you to query Google Maps, OpenStreetMap, Stamen maps, or CloudMade maps: get_map in the ggmap package. You could also use either get_googlemap, get_openstreetmap, get_stamenmap, or get_cloudmademap, but...

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Version 1.0 of multilevelPSA Available on CRAN

February 14, 2013
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Version 1.0 of multilevelPSA Available on CRAN

Version 1.0 of multilevelPSA has been released to CRAN. The multilevelPSA package provides functions to estimate and visualize propensity score models with multilevel, or clustered, data. The graphics are an extension of PSAgraphics package by Helmreich and Pruzek. The example below will investigate the differences between private and public school internationally using the Programme of International Student Assessment...

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Getting a simple tree via NCBI

February 14, 2013
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Getting a simple tree via NCBI

I was just at the Phylotastic hackathon in Tucson, AZ at the iPlant facilities at the UofA. A problem that needs to be solved is getting the incrasingly vast phylogenetic information to folks not comfortable building their own phylogenies. Phylomatic has made this super easy for people that want plant phylogenies (at least 250 or so papers...

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Getting a simple tree via NCBI

February 14, 2013
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Getting a simple tree via NCBI

I was just at the Phylotastic hackathon in Tucson, AZ at the iPlant facilities at the UofA. A problem that needs to be solved is getting the incrasingly vast phylogenetic information to folks not comfortable building their own phylogenies. Phylomatic has made this super easy for people that want plant phylogenies (at least 250 or so papers...

Read more »