193 search results for "iris"

dendextend: a package for visualizing, adjusting, and comparing dendrograms (based on a paper from “bioinformatics”)

August 4, 2015
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dendextend: a package for visualizing, adjusting, and comparing dendrograms (based on a paper from “bioinformatics”)

This post on the dendextend package is based on my recent paper from the journal bioinformatics (a link to a stable DOI). The paper was published just last week, and since it is released as CC-BY, I am permitted (and delighted) to republish it here in full: abstract Summary: dendextend is an R package for creating and comparing visually appealing … Continue reading...

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Egyptian fractions [Le Monde puzzle #922]

July 27, 2015
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Egyptian fractions [Le Monde puzzle #922]

For its summer edition, Le Monde mathematical puzzle switched to a lighter version with immediate solution. This #922 considers Egyptian fractions which only have distinct denominators (meaning the numerator is always 1) and can be summed. This means 3/4 is represented as ½+¼. Each denominator only appears once. As I discovered when looking on line,

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dendextend version 1.0.1 + useR!2015 presentation

June 28, 2015
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dendextend version 1.0.1 + useR!2015 presentation

My R package dendextend (version 1.0.1) is now on CRAN! The dendextend package Offers a set of functions for extending dendrogram objects in R, letting you visualize and compare trees of hierarchical clusterings. With it you can (1) Adjust a tree’s graphical parameters – the color, size, type, etc of its branches, nodes and labels. … Continue reading...

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DT: An R interface to the DataTables library

June 24, 2015
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DT: An R interface to the DataTables library

We are happy to announce a new package DT is available on CRAN now. DT is an interface to the JavaScript library DataTables based on the htmlwidgets framework, to present rectangular R data objects (such as data frames and matrices) as HTML tables. You can filter, search, and sort the data in the table. See http://rstudio.github.io/DT/ for the full

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Shiny App for the Wittgenstein Centre Population Projections

June 15, 2015
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Shiny App for the Wittgenstein Centre Population Projections

A few weeks ago a new version of the the Wittgenstein Centre Data Explorer was launched. The data explorer is intended to disseminate the results of a recent global population projection exercise which uniquely incorporates level of education (as well as age … Continue reading →

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In-database R coming to SQL Server 2016

May 15, 2015
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R is coming to SQL Server. SQL Server 2016 (which will be in public preview this summer) will include new real-time analytics, automatic data encryption, and the ability to run R within the database itself: For deeper insights into data, SQL Server 2016 expands its scope beyond transaction processing, data warehousing and business intelligence to deliver advanced analytics as...

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Reinventing the wheel for ordination biplots with ggplot2

May 14, 2015
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Reinventing the wheel for ordination biplots with ggplot2

I’ll be the first to admit that the topic of plotting ordination results using ggplot2 has been visited many times over. As is my typical fashion, I started creating a package for this purpose without completely searching for existing solutions. Specifically, the ggbiplot and factoextra packages already provide almost complete coverage of plotting results from

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Get data out of excel and into R with readxl

April 15, 2015
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excel_to_R

I’m pleased to announced that the first version of readxl is now available on CRAN. Readxl makes it easy to get tabular data out of excel. It: Supports both the legacy .xls format and the modern xml-based .xlsx format. .xls support is made possible the with libxls C library, which abstracts away many of the

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R User Group Recap: Heatmaps and Using the caret Package

April 10, 2015
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R User Group Recap: Heatmaps and Using the caret Package

At our most recent R user group meeting we were delighted to have presentations from Mark Lawson and Steve Hoang, both bioinformaticians at Hemoshear. All of the code used in both demos is in our Meetup’s GitHub repo.Making heatmaps in RSteve started with an overview of making heatmaps in R. Using the iris dataset, Steve demonstrated...

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readr 0.1.0

April 9, 2015
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readr 0.1.0

I’m pleased to announced that readr is now available on CRAN. Readr makes it easy to read many types of tabular data: Delimited files withread_delim(), read_csv(), read_tsv(), and read_csv2(). Fixed width files with read_fwf(), and read_table(). Web log files with read_log(). You can install it by running: install.packages("readr") Compared to the equivalent base functions, readr

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