1470 search results for "excel"

Win Your Fantasy Football Auction Draft: Calculate the Optimal Players to Draft with this Shiny App in R

June 13, 2013
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In this post, I use a Shiny app in R to determine the best possible players to pick in a fantasy football auction draft.  The app takes projections from FantasyPros, The post Win Your Fantasy Football Auction Draft: Calculate the Optimal Players to Draft with this Shiny App in R appeared first on Fantasy Football Analytics.

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Top 100 R packages for 2013 (Jan-May)!

June 13, 2013
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Top 100 R packages for 2013 (Jan-May)!

(This article was first published on R-statistics blog » RR-statistics blog, and kindly contributed to R-bloggers) What are the top 100 (most downloaded) R packages in 2013? Thanks to the recent release of RStudio of their “0-cloud” CRAN log files (but without including downloads from the primary CRAN mirror or any of the 88 other CRAN mirrors), we can now answer this question...

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Twitter Twitter on the Web, Who is the Most Popular of All? Interactively Determining Popularity of Two Entitites on Twitter

June 12, 2013
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Twitter Twitter on the Web, Who is the Most Popular of All? Interactively Determining Popularity of Two Entitites on Twitter

Code updated based on feedback (see list of changes at the very end)Okay, that was a take on the mirror mirror on the wall quote from Snow White. This continues my saga of learning from the superb work done by the R-community and building on their...

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More explorations of Shiny

June 11, 2013
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More explorations of Shiny

I have continued to explore the functionality of the Shiny package released by the Rstudio team and I have been increasingly impressed.  The code fits together very clean and easy to manipulate or add to.  If you have some knowledge of html o...

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Sobol Sensitivity Analysis

June 10, 2013
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Sobol Sensitivity Analysis

Sensitivity analysis is the task of evaluating the sensitivity of a model output Y to input variables (X1,…,Xp). Quite often, it is assumed that this output is related to the input through a known function f :Y= f(X1,…,Xp). Sobol indices are generalizing the coefficient of the coefficient of determination in regression. The ith first order indice is the proportion of...

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Better Neighborhoods with R: Exploring and Analyzing SeeClickFix Data (part 1)

June 9, 2013
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Better Neighborhoods with R: Exploring and Analyzing SeeClickFix Data (part 1)

Better Neighborhoods with R: Exploring and Analyzing SeeClickFix Data (part 1) The ‎ National Day of Civic Hacking took place …Continue reading »

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Feature Selection 3 – Swarm Mentality

June 6, 2013
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Feature Selection 3 – Swarm Mentality

"Bees don't swarm in a mango grove for nothing. Where can you see a wisp of smoke without a fire?" - Hla Stavhana In the last two posts, genetic algorithms were used as feature wrappers to search for more effective subsets of predictors. Here, I will do the same with another type of search algorithm: particle swarm optimization....

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Intro to Parallel Random Number Generation with RevoScaleR

June 6, 2013
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Intro to Parallel Random Number Generation with RevoScaleR

by Joseph Rickert Random number generation is fundamental to doing computational statistics. As you might expect, R is very rich in random number resources. The R base code provides several high quality random number generators including: Wichmann-Hill, Marsaglia-Multicarry, Super-Duper, Mersenne-Twister, Knuth-TAOCP-2002 and L’Ecuyer-CMRG. (See Random for details.) And, there are at least three packages, rspring, rlecuyer, and rstream for...

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KDNuggets 2013 software poll results

June 5, 2013
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KDNuggets 2013 software poll results

The results of the 2013 KDNuggets software poll are in, with RapidMiner and R in a near-tie for first place. Of a record 1880 respondents, 737 reported using Rapid-I RapidMiner/RapidAnalytics, and 704 reported using R. Excel came in third: with 527 respondents, it was the lone commercial tool in the top 5. You can see the top 10 responses...

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Win Your Fantasy Football Auction Draft: Calculate the Optimal Players to Draft with this Shiny App in R

June 2, 2013
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In this post, I use a Shiny app in R to determine the best possible players to pick in a fantasy football auction draft.  The app takes projections from FantasyPros, a site that averages across numerous sources of projections.  Based on your ...

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