1227 search results for "excel"

Consultants’ Chart in ggplot2

August 16, 2010
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Consultants’ Chart in ggplot2

Excel Charts Blog posted a video tutorial of how to create a circumplex or rose or dougnut chart in Excel. Apparently this type of chart is very popular in the consulting industry, hence the “Consultants’ Chart”. It is very easy to make this chart in Excel 2010, but it involves countless number of clicks and

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Fun with the proto package: building an MCMC sampler for Bayesian regression

August 12, 2010
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Fun with the proto package: building an MCMC sampler for Bayesian regression

The proto package is my latest favourite R goodie. It brings prototype-based programming to the R language - a style of programming that lets you do many of the things you can do with classes, but with a lot less up-front work. Louis Kates and Thomas P...

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Fun with the proto package: building an MCMC sampler for Bayesian regression

August 12, 2010
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Fun with the proto package: building an MCMC sampler for Bayesian regression

The proto package is my latest favourite R goodie. It brings prototype-based programming to the R language - a style of programming that lets you do many of the things you can do with classes, but with a lot less up-front work. Louis Kates and Thomas Petzoldt provide an excellent introduction to using proto in the

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Tuning Notepad++

August 12, 2010
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Here are some tricks I collected for making Notepad++ a more comfortable text editor for me in general in for the R programming language in particular.Switch between tabs in Notepad++ with Ctrl-PageUp/DownNotepad++'s default behaviour is to use Ctrl+(S...

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Handling Large CSV Files in R

A follow-up of my previous post Excellent Free CSV Splitter. I asked a question at LinkedIn about how to handle large CSV files in R / Matlab. Specifically, Quotationsuppose I have a large CSV file with over 30 million number of rows, both Matlab / R lacks memory when importing the data. Could you...

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Twenty rules for good graphics

August 6, 2010
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Twenty rules for good graphics

One of the things I repeatedly include in referee reports, and in my responses to authors who have submitted papers to the International Journal of Forecasting, are comments designed to include the quality of the graphics. Recently someone asked on stats.stackexchange.com about best practices for producing plots. So I thought it might be helpful to

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use R! 2010 conference — reflections

August 4, 2010
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From July 20-23, this year's use R! conference took place in Gaithersburg near Washington. I attended the conference as part of my holidays in the U.S. and had a good time there. I met some people, even though that is not the easiest thing for me to do, and I got some inspirations and ideas I outline below:Stat appsOne...

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The Mule goes SURFing

July 29, 2010
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A month ago I posted about “SURF”, the newly-established Sydney R user forum (R being an excellent open-source statistics tool). Shortly after publishing that post, I attended the inaugural forum meeting. While we waited for attendees to arrive, a few people introduced themselves, explaining why they were interested in R and how much experience they

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Mystery solved: The discrepancy in homicide data

July 27, 2010
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Mystery solved: The discrepancy in homicide data

I've been complaining about how homicide statistics from police sources were too low in 2009, with the entire state of Chihuahua having less homicides than its biggest city. I was thinking of finding out if I could use the IFAI (Freedom of Information Access) to obtain the original CIEISP forms which the state police forces are supposed to fill out each month...

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Mystery solved: The discrepancy in homicide data

July 27, 2010
By
Mystery solved: The discrepancy in homicide data

I've been complaining about how homicide statistics from police sources were too low in 2009, with the entire state of Chihuahua having less homicides than its biggest city. I was thinking of finding out if I could use the IFAI (Freedom of Information Access) to obtain the original CIEISP forms which the state police forces are supposed to fill out each month...

Read more »