1265 search results for "Excel"

Simple network diagrams in R

June 12, 2012
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Simple network diagrams in R

Why study networks? Development and aid projects these days are more and more often focussing on supporting networks, so tools to analyse networks are always welcome. In this post I am going to present a very easy-to-use package for the stats program R which makes nice-looking graphs of these kinds of networks. In a recent

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Random regression coefficients using lme4

June 11, 2012
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Random regression coefficients using lme4

What's the gain over lm()?By Ben OgorekRandom effects models have always intrigued me. They offer the flexibility of many parameters under a single unified, cohesive and parsimonious system. But with the growing size of data sets and increased ability to estimate many parameters with a high level of accuracy, will the subtleties of the random effects analysis be lost? In this...

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R becomes a critical tool in government departments

June 10, 2012
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R becomes a critical tool in government departments

Situation and Outlook for Primary Industries (2012) just published by New Zealand’s Ministry for Primary Industries (click to download page) demonstrates well that R is a limitless tool for analysis and graphing, and the capability of using R is growing in … Continue reading →

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Testing recommender systems in R

June 10, 2012
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Testing recommender systems in R

Recommender systems are pervasive. You have encountered them while buying a book on barnesandnoble, renting a movie on Netflix, listening to music on Pandora, to finding the bar visit (FourSquare). Saar for Revolution Analytics, had demonstrated how to get started with some techniques for R here. We will build some using Michael Hahsler’s excellent package

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R starter resources

June 8, 2012
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R starter resources

I’m hardly the first person you would want to talk to about learning statistics in R. But if you’re bent on teaching yourself R, and you’ve ended up at my blog, here are some resources I found useful. (No opinions here about whether R is good/bad better/worse than Excel, Minitab, Matlab, Octave, SPSS, Stata, SAS,

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Choosing colour palettes. Part II: Educated Choices.

June 7, 2012
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Choosing colour palettes. Part II: Educated Choices.

There are many resources on the use of colours in R, several packages, and a number of schemes already implemented in ggplot2. In the previous part, we saw how ggplot2 selects a default colour palette according to the type of variable, discrete or cont...

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Mapping the World’s Biggest Airlines

June 7, 2012
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Mapping the World’s Biggest Airlines

The map above shows the routes flown by the top 7 airli

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UK house prices visualised with googleVis-0.2.16

June 5, 2012
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UK house prices visualised with googleVis-0.2.16

A new version of googleVis has been released on CRAN and the project site. Version 0.2.16 adds the functionality to plot quarterly and monthly data as a motion chart. To illustrate the new feature I looked for a quarterly data set and stumbled across t...

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The influences that shaped R: Inferno-ish R

June 1, 2012
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The influences that shaped R: Inferno-ish R

Patrick Burns, author of the excellent R Inferno, gave a presentation about R at the Cambridge R User Group this week. (Revolution Analytics is a proud sponsor of CambR.) I wasn't at the presentation myself, but Pat always gives a great talk, and he's generously provided his slides with copious notes. They're definitely worth a read if you're interested...

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R Tops Data Mining Software Poll

May 31, 2012
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For the past 12 years, KDNuggets has conducted an annual poll asking "What analytics/data mining software you used in the past 12 months for a real project (not just evaluation)". In this year's poll, R was the top-ranked data mining solution, selected by 30.7% of poll respondents. Microsoft Excel was second, at 29.8%. Rapidminer, which took the #1 spot...

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