1880 search results for "tutorial"

Brief introduction on Sweave and Knitr for reproducible research

February 24, 2014
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Brief introduction on Sweave and Knitr for reproducible research

A few weeks ago I gave a presentation on using Sweave and Knitr under the guise of promoting reproducible research. I humbly offer this presentation to the blog with full knowledge that there are already loads of tutorials available online. This presentation is specific and slightly biased towards Windows OS, so it probably has limited

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A survival guide to Data Science with R, from Graham Williams

February 21, 2014
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Graham Williams is the Lead Data Scientist at the Australian Taxation Office, and the creator of Rattle, an open-source GUI for data mining with R. (Check out some recent reviews/demos of Rattle on this blog here and here.) Dr Williams continues his many contributions to the R community with One Page R, a "Survival Guide to Data Science with...

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Shapefile Polygons Plotted on Google Maps Using ggmap in R – Throw some, throw some STATS on that map…(Part 2)

February 20, 2014
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Shapefile Polygons Plotted on Google Maps Using ggmap in R – Throw some, throw some STATS on that map…(Part 2)

Well it’s been long enough since my last post. Had a few things on my plate (vacation, holidays, another holiday, some more holidays, and quite a lot of research). March is almost here but the good news is that I have plenty of work stored up to start serving out some intuitive approaches for learning

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Add a background png image to ggplot2

February 16, 2014
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Add a background png image to ggplot2

Hey everybody, this is just a short post but I found it very useful. I want to show you how to add images as a background to your ggplot2 plots. To do so we need the packages png and grid Btw, this is just a cool and fast way to import different packages at once. …

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Using the LaTeX listings package to style R PDF reports with knitr and pandoc

February 15, 2014
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Using the LaTeX listings package to style R PDF reports with knitr and pandoc

knitr is a an R package that allows you to include R code in markdown or LaTeX source files, and have the code and/or its output included in the resulting html or pdf files. RStudio provides good support for this, so if you want to try it out that’s a good place to start. This

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Reproducible research, training wheels, and knitr

February 15, 2014
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Reproducible research, training wheels, and knitr

Last week I gave a short talk at CMU’s statistical computing seminar, Stat Bytes. I summarized why reproducible research (RR) and literate programming are worthwhile, not just for serious research but also for homework reports or statistical blog posts. I … Continue reading →

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BitCoin profits with the Sushi-Burger Shuffle

February 14, 2014
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BitCoin profits with the Sushi-Burger Shuffle

The BitCoin cryptocurrency has been much in the news of late. What, you don't have BitCoins? (Don't worry, neither do I.) Unless you have a supercomputer in your back yard and a cheap source of power, it's no longer really feasible to mine them yourself. But if you want some, several online exhanges will let you buy BitCoins for...

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A million ways to connect R and Excel

February 11, 2014
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In quantitative finance both R and Excel are the basis tools for any type of analysis. Whenever one has to use Excel in conjunction with R, there are many ways to approach the problem and many solutions. It depends on what you really want to do and the size of the dataset you’re dealing with. I

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Using Dates and Times in R

February 10, 2014
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Using Dates and Times in R

Today at the Davis R Users’ Group, Bonnie Dixon gave a tutorial on the various ways to handle dates and times in R. Bonnie provided this great script which walks through essential classes, functions, and packages. Here it is piped through knitr::spin. The original R script can be found as a gist here. Date/time classes Three...

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DailyMeteo.org – 2014 Conference

February 10, 2014
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DailyMeteo.org – 2014 Conference

Our friend Stefan has been participating in MilanoR since the beginning, and was one of the people who started using R intensively after the "Introduction to R" Quantide course. Since he is from Belgrade (Serbia), and takes part in the … Continue reading →

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