1302 search results for "excel"

Voter targeting with R

May 26, 2010
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Voter targeting with R

Voter targeting for turnout is the process of scoring registered voters using demographic and electoral variables taken from voter lists and commercial databases. The score of all voters together is used to predict overall turnout, which determines the allocation of campaign resources and directs strategy for voter contact and communication. Targeting for turnout is a

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Graphing using R

May 16, 2010
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Graphing using R

Long-time readers of the Stubborn Mule will know that charts are a regular feature here. Almost all of these charts were produced using the R statistical software package which, in my view, produces far superior results to the most commonly used graphing tool: Excel. As a community service to help rid the world of horrible

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Introducing IBrokers (and Jeff Ryan)

May 13, 2010
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Introducing IBrokers (and Jeff Ryan)

Josh had kindly invited me to post on FOSS Trading around the time when he first came up with the idea for the blog. Fast forward a year and I am finally taking him up on his offer.I'll start by highlighting that while all the software in this post is indeed free (true to FOSS), an account with...

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Introducing IBrokers (and Jeff Ryan)

May 13, 2010
By
Introducing IBrokers (and Jeff Ryan)

Josh had kindly invited me to post on FOSS Trading around the time when he first came up with the idea for the blog. Fast forward a year and I am finally taking him up on his offer.I'll start by highlighting that while all the software in this post is indeed free (true to FOSS), an account with...

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Reflections on consulting part 5 – what languages and tools to learn?

May 12, 2010
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Reflections on consulting part 5 – what languages and tools to learn?

What languages and tools should you learn as a math/stat consultant?  To jump to the answer: Excel/VBA, SQL, R, Java, and Python. Spreadsheets have many problems with verifiability and scalability, so why Excel? Excel is: Useful for prototyping ideas quickly, either for your own use or to show to other team members Well-known and understood

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An economist explains: Why I use R

May 10, 2010
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Economist and R blogger JD Long gave a talk last week (as part of the vconf.org project) about why he uses R to do statistical forecasts of agricultural yield for the reinsurance company he works for. I couldn't make the live session, but a replay is now available. The audio's a bit choppy, but if you've every struggled with...

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Abbreviations of R Commands Explained: 250+ R Abbreviations

May 10, 2010
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The R programming language includes many abbreviations. Abbreviations exist in function names, argument names, and allowed values for arguments. This post expands on over 150 R abbreviations with the aim of making it easier for users new to R who are trying...

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Abbreviations of R Commands Explained: 250+ R Abbreviations

May 10, 2010
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The R programming language includes many abbreviations. Abbreviations exist in function names, argument names, and allowed values for arguments. This post expands on over 150 R abbreviations with the aim of making it easier for users new to R who are trying...

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How I came to R

May 6, 2010
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J. D. Long will be giving an introduction to R - how he got into it when doing data analysis and what drew him to use it instead of complicated excel models.

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Videos on Data Analysis with R: Introductory, Intermediate, and Advanced Resources

May 4, 2010
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Videos on Data Analysis with R: Introductory, Intermediate, and Advanced Resources

If you want to learn about R through videos, there are now a large number of options.This post provides links to many of these video under the headings of:(a) What is R?(b) Introductory R, and(c) Intermediate and Advanced R.What is R?If you are evaluat...

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