1893 search results for "EXCEL"

Workout Wednesday Redux (2017 Week 3)

January 18, 2017
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Workout Wednesday Redux (2017 Week 3)

I had started a “52 Vis” initiative back in 2016 to encourage folks to get practice making visualizations since that’s the only way to get better at virtually anything. Life got crazy, 52 Vis fell to the wayside and now there are more visible alternatives such as Makeover Monday and Workout Wednesday. They’re geared towards... Continue reading...

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Git Gud with Git and R

January 17, 2017
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Git Gud with Git and R

If you're doing any kind of in-depth programming in the R language (say, creating a report in Rmarkdown, or developing a package) you might want to consider using a version-control system. And if you collaborate with another person (or a team) on the work, it makes things infinitely easier when it comes to coordinating changes. Amongst other benefits, a...

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How to really do an analysis in R (part 1, data manipulation)

January 16, 2017
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How to really do an analysis in R (part 1, data manipulation)

For a couple of years, I’ve been writing about the importance of data analysis, saying that data analysis is essentially the foundation of data science itself. While I admit that there’s room for argument (and I admit that the reality is a little more nuanced) I still firmly believe that data analysis is the true The post

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The Wizarding World of rstudio::conf 2017

January 15, 2017
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The Wizarding World of rstudio::conf 2017

After the success of last January’s “Shiny Dev Con“, our friends at RStudio are back with their first full-blown conference, “rstudio::conf“. Like our own EARL Conference, rstudio::conf was preceeded by training courses from 3 of RStudio’s big names, Hadley Wickham, … Continue reading →

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How to calculate betas (systematic risk) for a large number of stocks

January 15, 2017
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How to calculate betas (systematic risk) for a large number of stocks

A comparison between using a loop, function by and the package dplyr - One of the first examples about using linear regression models in finance is the calculation of betas, the so called market model. Coefficient beta is a measur...

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R to the Rescue

January 14, 2017
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R to the Rescue

A strategy for gathering scattered spreadsheet data with R - A simple request Recently I was tasked with extracting data from multiple spreadsheets so that it could be included in a report. Seemed like a fairly innocuous request, but it tur...

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RStudio Conference 2017 Recap

January 14, 2017
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The first ever RStudio conference was held January 11-14, 2017 in Orlando, FL. For anyone else like me who spends hours each working day staring into an RStudio session, the conference was truly excellent. The speaker lineup was diverse and covered lot...

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Some R News

January 13, 2017
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by Joseph Rickert Here are a few things of some interest in the R world: The Gordon and Betty Moore Foundation has joined the R Consortium! This is a very positive development for the R Consortium and the R Community in general. The Moore Foundation has been a positive force for supporting technology that can

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Books I like

January 13, 2017
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Books I like

If you’re serious about learning, you probably need to read a book at some point. These days if you want to learn applied statistics and data science tools, you have amazing options in the form of blogs, Q&A sites, and massive open online course...

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Mapping useRs

January 12, 2017
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Mapping useRs

Every year, hundreds of R programmers descend on a host city and spend three or four days sharing work, collaborating on projects and making new contacts - the useR! conference, this year held in Stanford, CA. useR! offers a wonderful opportunity to ...

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