367 search results for "boxplot"

Labeled outliers in R boxplot

Labeled outliers in R boxplot

Boxplots are a good way to get some insight in your data, and while R provides a fine ‘boxplot’ function, it doesn’t label the outliers in the graph. However, with a little code you can add labels yourself:The numbers plotted next to ...

Read more »

Vega.jl Rebooted – Now with 100% More Pie and Donut Charts!

May 21, 2015
By
Vega.jl Rebooted – Now with 100% More Pie and Donut Charts!

          Mmmmm, chartjunk! Rebooting Vega.jl Recently, I’ve found myself without a project to hack on, and I’ve always been interested in learning more about browser-based visualization. So I decided to revive the work that John Myles White had done in building Vega.jl nearly two years ago. And since I’ll be giving

Read more »

Course on using Oracle R Enterprise

Course on using Oracle R Enterprise

BNOSAC will be giving from June 08 up to June 12 a 5-day crash course on the use of R using Oracle R Enterprise. The course is given together with our Oracle Partner in Leuven, Belgium. If you are interested in attending, contact us for further details. For R users who aren't aware of this yet....

Read more »

Getting started with PostgreSQL in R

May 18, 2015
By
Getting started with PostgreSQL in R

When dealing with large datasets that potentially exceed the memory of your machine it is nice to have another possibility such as your own server with an SQL/PostgreSQL database on it, where you can query the data in smaller digestible chunks. For example, recently I was facing a financial dataset of 5 GB. Although 5

Read more »

The perfect t-test

May 18, 2015
By
The perfect t-test

I've created an easy to use R script that will import your data, and performs and writes up a state-of-the-art dependent or independent t-test. The goal of this script is to examine whether more researcher-centered statistical tools (i.e., a one-click analysis script that checks normality assumptions, calculates effect sizes and their confidence intervals, creates good figures,...

Read more »

Recent Common Ancestors: Simple Model

May 15, 2015
By
Recent Common Ancestors: Simple Model

An interesting paper (Modelling the recent common ancestry of all living humans, Nature, 431, 562–566, 2004) by Rohde, Olson and Chang concludes with the words: Further work is needed to determine the effect of this common ancestry on patterns of genetic variation in structured populations. But to the extent that ancestry is considered in genealogical The post

Read more »

Upcoming Tutorial: Analyzing US Census Data in R

May 11, 2015
By
Upcoming Tutorial: Analyzing US Census Data in R

Today I am pleased to announce that on May 21 I will run a tutorial titled Analyzing US Census Data in R. While I have spoken at conferences before, this is my first time running a tutorial. My hope is that everyone who participates will learn something interesting about the demographics of the state, county

Read more »

choroplethr v3.1.0: Better Summary Demographic Data

May 5, 2015
By
choroplethr v3.1.0: Better Summary Demographic Data

Today I am happy to announce that choroplethr v3.1.0 is now on CRAN. You can get it by typing the following from an R console: install.packages("choroplethr") This version adds better support for summary demographic data for each state and county in the US. The data is in two data.frames and two functions. The data.frames are:

Read more »

Cascading style sheets for R plots (via the Rcssplot package)

April 23, 2015
By
Cascading style sheets for R plots (via the Rcssplot package)

This post is contributed by Tomasz Konopka. Comments are welcome. [email protected] One of the great features of R is its capable graphics framework. In principle, the framework allows us to customize all aspects of the visual presentation of data. In practice, however, customization is rather tedious. For example, R’s own boxplot function has 17 custom arguments, not counting ...; stripchart has 20. Tweaking the default...

Read more »

Time Series Graphs & Eleven Stunning Ways You Can Use Them

April 22, 2015
By
Time Series Graphs & Eleven Stunning Ways You Can Use Them

Many graphs use a time series, meaning they measure events over time. William Playfair (1759 - 1823) was a Scottish economist and pioneer of this approach. Playfair invented the line graph. The graph below–one of his most famous–depicts ho...

Read more »