624 search results for "knitr"

Are you doing parallel computations in R? Then use BiocParallel

March 6, 2016
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Are you doing parallel computations in R? Then use BiocParallel

It’s the morning of the first day of oral conferences at #ENAR2016. I feel like I have a spidey sense since I woke up 3 min after an email from Jeff Leek; just a funny coincidence. Anyhow, I promised Valerie Obenchain at #Bioc2014 that I would write a post about one of my favorite Bioconductor packages:...

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WOMBAT 2016 Wrap Up

March 5, 2016
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A few weeks ago I spoke at the Workshop Organized by Monash Business Analytics Team (WOMBAT), held in the Melbourne Zoo (!) on Thursday and Friday the 18th and 19th February. It was my first time at the Melbourne Zoo, and my first time having a conference in a Zoo. It was a pretty surreal experience briskly walking to...

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Capturing wild widgets with webshot

March 4, 2016
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NOTE: you won’t need to use this function if you use the development version of knitr Winston Chang released his webshot package to CRAN this past week. The package wraps the immensely useful phantomjs utility and makes it dirt simple to capture whole or partial web pages in R. One beautiful bonus feature of webshot

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Upload plots as PNG file to your wordpress

February 27, 2016
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Upload plots as PNG file to your wordpress

Synopsis Note! This post is a addition to Create blog posts from RStudio to WordPress About a week ago I tried to add my blog to R-Bloggers. I thought everything was correct to add it. But this week I got a mail from Tal Galili (site administrator of R-Bloggers) with

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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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