1405 search results for "RStudio"

Case Study: DataCamp, dplyr, and blended learning

June 10, 2015
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Case Study: DataCamp, dplyr, and blended learning

Editorial Note: This is a guest blog post by Professor Matthew J. Salganik (Princeton University) in which he describes his experiences using the DataCamp interactive learning platform for blended learning. The article was first published on Wheels on the Bus. Want to use DataCamp in your class as well? Contact us via [email protected] DataCamp, dplyr, and blended learning As The post

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Notebooks, knitr and the Language-Markdown View Source Option…

June 8, 2015
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Notebooks, knitr and the Language-Markdown View Source Option…

One of the foundational principles of the web, though I suspect ever fewer people know it, is that you can “View Source” on a web page to see what bits of HTML, Javascript and CSS are used to create it. In the WordPress editor I’m currently writing in, I’m using a Text view that lets

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Using Wikipediatrend

June 8, 2015
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Using Wikipediatrend

What do Wikipedia's readers care about? Is Britney Spears more popular than Brittany? Is Asia Carrera more popular than Asia? How many people looked at the article on Santa Claus in December? How many looked at the article on Ron Paul? What can you find? Source: http://stats.grok.se/ The wikipediatrend package provides convenience access to daily page view counts (Wikipedia article traffic...

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Why has R, despite quirks, been so successful?

June 8, 2015
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I was on a panel back in 2009 where Bow Cowgill said, "The best thing about R is that it was written by statisticians. The worst thing about R is that it was written by statisticians." R is undeniably quirky — especially to computer scientists — and yet it has attracted a huge following for a domain-specific language, with...

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Running Go language chunks in R Markdown (Rmd) files

June 8, 2015
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After seeing IPython Markdown Opportunities in IPython Notebooks and Rstudio in the feeds today I wondered how easy/hard it would be to write a handler for something like go code. After taking a look at Yihui Xie‘s knitr source it seemed like it would be fairly easy to mimic a combination of Rcpp and “shell”...

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A Better ZigZag

June 6, 2015
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A Better ZigZag

There are a lot of “winning” strategies for bull markets floating around. “Buy the pullbacks” is certainly one of them. Does this sound simple enough to implement to you? While I am no Sheldon Cooper (although I have a favorite couch seat), I still like to live in a somewhat well defined world, a world The post

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Any R code as a cloud service: R demonstration at BUILD

June 5, 2015
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Any R code as a cloud service: R demonstration at BUILD

At last month's BUILD conference for Microsoft developers in San Francisco, R was front-and-center on the keynote stage. In the keynote, Microsoft CVP Joseph Sirosh introduced the "language of data": open source R. Sirosh encouraged the audience to learn R, saying "if there is a single language that you choose to learn today .. let it be R". The...

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Macros in R

June 5, 2015
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Macros in R

In programming, sometimes it’s useful to write a macro rather than a function. (Don’t worry if you’ve never heard the term before.) In this post, I’ll give an example of use of macros in R. using the gtools package on CRAN. I wanted to write some utility code to help me reuse my earlier R commands during … Continue reading...

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New package commonmark: yet another markdown parser?

June 2, 2015
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New package commonmark: yet another markdown parser?

Last week the commonmark package was released on CRAN. The package implements some very thin R bindings to John Macfarlane’s (author of pandoc) cmark library. From the cmark readme: cmark is the C reference implementation of CommonMark, a rationalized version of Markdown syntax with a spec. It provides a shared library...

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“Mail merge” with RMarkdown

June 1, 2015
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“Mail merge” with RMarkdown

The term “mail merge” might not be familiar to those who have not worked in an office setting, but here is the Wikipedia definition: Mail merge is a software operation describing the production of multiple (and potentially large numbers of) documents from … Continue reading →

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