628 search results for "Knitr"

Installing the additional R packages in Oracle Big Data Lite VM 4.4.0

February 23, 2016
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In the just-released version 4.4.0 of Oracle Big Data Lite VM, as in the previous one (4.3.0.1), there is a rather large number of additional R packages to be installed by the provided script install_additional_packages.sh, i.e. 28 packages without counting their dependencies (the respective number in version 4.2.1 was only 10). Unfortunately, what has also changed is the form...

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Why should you backup your R objects?

February 18, 2016
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Why should you backup your R objects?

There is a saying that there are two groups of people: those who are already doing backups and those who will. So, how this is linked with reproducible research and R? If your work is to analyze data then you often face a need to restore/recreate/update results that you have generated some time ago. You … Czytaj dalej...

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Interactively building test forms from an IRT perspective An application of R and Shiny

February 18, 2016
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Interactively building test forms from an IRT perspective An application of R and Shiny

Interactively building test forms from an IRT perspective: An application of R and Shiny Brandon LeBeau University of Iowa Overview R R is an open source statistical programming language. Pros: Common statistical procedures...

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Practical uses of R object modes: some examples

February 16, 2016
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Practical uses of R object modes: some examples

One of our readers commented on our mode exercises post: “What real world tasks are you using mode to solve?” I think it’s an interesting question, from a somewhat larger perspective. Obviously, it’d be a waste of time to learn all kinds of obscure commands that don’t have a clear application in the real world.

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Making Faceted Heatmaps with ggplot2

February 14, 2016
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Making Faceted Heatmaps with ggplot2

We were doing some exploratory data analysis on some attacker data at work and one of the things I was interested is what were “working hours” by country. Now, I don’t put a great deal of faith in the precision of geolocated IP addresses since every geolocation database that exists thinks I live in Vermont

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Using SVG graphics in blog posts

February 9, 2016
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Using SVG graphics in blog posts

My traditional work flow for embedding R graphics into a blog post has been via a PNG files that I upload online. However, when I created a 'simple' graphic with only basic curves and triangles for a recent post, I noticed that the PNG output didn't look as crisp as I expected it to be. So, eventually I...

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Advanced R programming topics course in Leuven

Last call for registration of the course on Advanced R programming topics. Next week on February 17/18, the yearly R course on Advanced R programming topics in Leuven (Belgium) is scheduled. Registration can be done at https://lstat.kuleuven.be/training/coursedescriptions/AdvancedprogramminginR.html. The course is rewritten based on 3 years of extensive customer feedback and because of the tremendous evolution R has encountered in...

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My favorite tools for helping future me

My favorite tools for helping future me

Reproducible research is a topic that people like to talk about these days. Thinking about reproducible research and learning the important tools is what improved my work more than anything. Not in a sense that my results got better. More in a sense that my feeling about the work got better and my analyses got easier to understand for future...

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Alternate R Markdown Templates

February 4, 2016
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The knitr/R markdown system is a great way to organize reports and analyses. However, the built-in ones (that come with RStudio/the rmarkdown package) rely on Bootstrap and also use jQuery. There’s nothing wrong with that, but the generated standalone HTML documents (which are a great way to distribute reports) don’t really need all that cruft

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Using Microsoft R Open with RStudio

February 4, 2016
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Using Microsoft R Open with RStudio

by Joseph Rickert A frequent question that we get here at Microsoft about MRO (Microsoft R Open) is: can be used with RStudio? The short answer is absolutely yes! In fact, more than just being compatible, MRO is the perfect complement for the RStudio environment. MRO is a downstream distribution of open source R that supports multiple operating systems...

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