Monthly Archives: July 2016

A Diversified R in Insurance Conference

July 31, 2016
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A Diversified R in Insurance Conference

I visited London this month for the first time in many years, having been honored to participate in the fourth annual R in Insurance conference held at the Cass Business School. Mired in the deep rooted polarity of the current American presidential election, this traveler was refreshed and uplifted by London's surprising and multi-faceted diversity. The conference...

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South African Local Government Elections 2016

July 31, 2016
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A visual comparison of party effort across municipalities / districts. With South Africa’s local government elections in a few days time (3rd August 2016), I wondered about the effort being expended by the parties in each district or municipality. Has it increased or decreased since the 2011 elections? I must point out that I am not… Read More »

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Visualisation of Likert scale results

July 31, 2016
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Visualisation of Likert scale results

I wrote a function to visualise results of Likert scale items. Please find the function below the post. Here is an example plot:The function is called 'plot.likert' and takes the following arguments:- vec: The vector with the raw results- possible.values: A vector with all the possible values. This is sometimes...

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Checking Historical Precipitation Data Quality

July 30, 2016
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Checking Historical Precipitation Data Quality

Precipitation Data Quality Concerns I am interested in evaluating potential changes in precipitation patterns caused by climate change. I have been working with daily precipitation data for the Philadelphia International Airport, site id KPHL, for the period 1950 to present … Continue reading →

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Plotcon 2016 – Speakers and topics in R

July 30, 2016
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Plotcon 2016 – Speakers and topics in R

Jenny Bryan Topic: Extract plotting intent from spreadsheets in R Bio: Jennifer Bryan is an Associate Professor in the Statistics Department and the Michael Smith Laboratories at the University of British Columbia in Vancouver. She’s a biostatistician specialized in genomics and takes a special interest and delight in data analysis and statistical computing. Kent Russell

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Plot some variables against many others with tidyr and ggplot2

July 29, 2016
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Plot some variables against many others with tidyr and ggplot2

Want to see how some of your variables relate to many others? Here’s an example of just this: library(tidyr) library(ggplot2) mtcars %>% gather(-mpg, -hp, -cyl, key = "var", value = "value") %>% ggplot(aes(x = value, y = mpg, color = hp, shape = factor(cyl))) + geom_point() + facet_wrap(~ var, scales =...

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Merge a list of datasets together

July 29, 2016
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Last week I showed how to read a lot of datasets at once with R, and this week I’ll continue from there and show a very simple function that uses this list of read datasets and merges them all together. First we’ll use read_list() to read all the datasets at once (for more details read last week’s post):

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R moves up to 5th place in IEEE language rankings

July 29, 2016
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R moves up to 5th place in IEEE language rankings

IEEE Spectrum has just published its third annual ranking with its 2016 Top Programming Languages, and the R Language is once again near the top of the list, moving up one place to fifth position. As I said last year (when R moved up to take sixth place), this is an extraordinary result for a domain-specific language. The other...

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Data Visualisation (+Shiny app)

July 29, 2016
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by Nic Crane Data visualisation is a key piece of the analysis process.  At Mango, we consider the ability to create compelling visualisations to be sufficiently important that we include it as one of the core attributes of a data … Continue reading →

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Analyzing the US election using Twitter and Meta-Data in R

July 29, 2016
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Analyzing the US election using Twitter and Meta-Data in R

For my first blog post on R, I want to show how to use R to mine Twitter-data. I wanted to write this guide for several reasons. First, while there are many other guides on R-Bloggers that show similar things, they tend to focus more on setting up your Twitter account and using wordclouds. As … Continue...

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