Posts Tagged ‘ rstats ’

Draw Your Breast with CloudStat – A R Apps (for fun)

March 31, 2012
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Draw Your Breast with CloudStat – A R Apps (for fun)

This is a simple apps, called “Draw Your Breast with R“  created with R to generate Breast alike graphics. With this Draw Your Breast with R apps, you can change 4 parameters which are Theta, Phi, Expand and Color to generate graphics like...

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Ruin probability and infinite time

March 27, 2012
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Ruin probability and infinite time

A couple of weeks ago, I had a discussion with a practitioner, working in some financial company, about ruin, and infinite time. And it remind me a weird result. Well, not a weird result, but a result I found disturbing, at first, when I was a stud...

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Montreal R Workshop: Introduction to Bayesian Methods

March 22, 2012
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Montreal R Workshop: Introduction to Bayesian Methods

Monday, March 26, 2012  14h-16h, Stewart Biology N4/17 Corey Chivers, Department of Biology McGill University This is a meetup of the Montreal R User Group. Be sure to join the group and RSVP. More information about the workshop here. Topics Why would we want to be Bayesian in the first place?  In this workshop we

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Montreal R Workshop: Likelihood Methods and Model Selection

March 16, 2012
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Montreal R Workshop: Likelihood Methods and Model Selection

Monday, March 19, 2012  14h-16h, Stewart Biology N4/17 Corey Chivers, McGill University Department of Biology This workshop will introduce participants to the likelihood principal and its utility in statistical inference.  By learning how to formalize models through their likelihood function, participants will learn how to confront these models with data in order to make statistical

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π Day Special! Estimating π using Monte Carlo

March 14, 2012
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π Day Special! Estimating π using Monte Carlo

In honour of π day (03.14 – can’t wait until 2015~) , I thought I’d share this little script I wrote a while back for an introductory lesson I gave on using Monte Carlo methods for integration. The concept is simple – we can estimate the area of an object which is inside another object

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Visualising F1 Telemetry Data and Plotting Latitude and Longitude with ggplot Map Projections in R

March 14, 2012
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Visualising F1 Telemetry Data and Plotting Latitude and Longitude with ggplot Map Projections in R

Why don’t X-Y plots of latitude and longitude data look “right” compared to traditional map views? For example, here’s an X-Y scatterplot of some of Jenson Button’s McLaren telemetry data from the 2010 Australian Formula One Grand Prix: The image was generated, from a data file hosted on Google Spreadsheets, using the following R script,

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Montreal R workshop: Plyr, reshape and other data manipulation goodies

March 8, 2012
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Montreal R workshop: Plyr, reshape and other data manipulation goodies

March 12, 2012 14h-16h N4/17 Stewart Biology Building, McGill University Étienne Low-Decarie, McGill University This workshop is organized by the BGSA and is free of charge (!), but space is limited. Register early to ensure your spot! From Étienne: Ever want to split your data according to factors, apply a function on each part and

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Montreal R workshop on Causal Inference

March 5, 2012
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Montreal R workshop on Causal Inference

Monday, March 05, 2012  14h-16h N4/17 Stewart Biology Building, McGill University Prof. Bill Shipley from Université de Sherbrooke Topics Structural equation modelling Graphical models for understanding causal analysis Testing for goodness of fit...

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Visualising Twitter User Timeline Activity in R

February 17, 2012
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Visualising Twitter User Timeline Activity in R

I’ve largely avoided “time” in R to date, but following a chat with @mhawksey at #dev8d yesterday, I went down a rathole last night exploring a few ways of visualising a Twitter user timeline and as a result also had a quick initial play with some time handling features of R, such as timeseries objects,

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Generating Twitter Wordclouds in R (Prompted by an Open Learning Blogpost)

February 15, 2012
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Generating Twitter Wordclouds in R (Prompted by an Open Learning Blogpost)

A couple of weeks ago I saw a great example of an open learning blogpost from @katy_bird: Generating a word cloud (or not) from a Twitter hashtag. It described the trials and tribulations associated with trying to satisfy a request for the generation of a wordcloud based on tweets associated with a specific Twitter hashtag.

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