Monthly Archives: January 2017

New courses: Introduction to Statistics

January 31, 2017
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New courses: Introduction to Statistics

This week we are launching four new courses as part of our Introduction to Statistics curriculum. We are taking a modern approach to teaching statistics with the use of simulations and randomization rather than a more traditional theoretical one. We ha...

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Simulating genes and counts for DESeq2 analysis

January 31, 2017
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Simulating genes and counts for DESeq2 analysis

Sometimes it is helpful to simulate gene expression data to test code or to see how your results look with simulated values from a particular probability distribution. Here I am going to show you how to simulate RNAseq expression data counts from a uniform distribution with a mininum = 0 and maximum = 1200.

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Data Science Virtual Machine updated, now includes RStudio, JuliaPro

January 31, 2017
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Data Science Virtual Machine updated, now includes RStudio, JuliaPro

The Windows edition of the Data Science Virtual Machine (DSVM) was recently updated on the Azure Marketplace. This update upgrades some existing components and adds some new ones as well. You now have your choice of integrated development environment to use with R. RStudio Desktop is now included in the Data Science Virtual Machine image — no need to...

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Importing Data into R, part II

January 31, 2017
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Importing Data into R, part II

I recently downloaded the latest version of R Studio and noticed that their import dataset functionality had changed significantly. I had previously written about this HERE and wanted to provide an update for the current version of RStudio. When you go to import data using R Studio, you get a menu like this. If you’re

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Data Hacking with RDSTK (part 1)

January 31, 2017
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Data Hacking with RDSTK (part 1)

RDSTK is a very versatile package. It includes functions to help you convert IP address to geo locations and derive statistics from them. It also allows you to input a body of text and convert it into sentiments. This package provides an R interface to Pete Warden’s Data Science Toolkit. See www.datasciencetoolkit.org for more information. No related...

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Open Data R Meetup: exploring the Distribution of Traffic Accidents in Belgrade, 2015 in R

January 31, 2017
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Open Data R Meetup: exploring the Distribution of Traffic Accidents in Belgrade, 2015 in R

The R code that accompanies this post is found on GitHub: you will find R, Rmd, and HTML files there that were used during the first Open Data R Meetup held in Belgrade, 31 January 2017, organized by Data Science Serbia in Startit Center, Savska 5, Bel...

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Exact p-values for pairwise comparison of Friedman rank sums

January 31, 2017
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BMC Bioinformatics has published a paper by colleagues of mine, about calculating exact p-values for pairwise comparison of Friedman rank sums. The paper provides fast and easy-to-use R code, making it an interesting read for ...

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Enough trying to use LTO

January 31, 2017
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After months and months of working trying to get R on 64 bit Windows to work with link-time-optimization (LTO), I’ve come to the conclusion that GCC 4.9.3’s implementation of LTO just isn’t polished enough to work across the entire R infrastructure. I have been able to get base R, nloptr, Rblas, and Rlapack to compile Read the...

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Mapping unemployment data, 2016

January 30, 2017
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Mapping unemployment data, 2016

The last few posts at Sharp Sight have been fairly intense. Let’s make a quick map ... The post Mapping unemployment data, 2016 appeared first on SHARP SIGHT LABS.

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gunsales 0.1.2

January 30, 2017
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An update to the gunsales package is now on the CRAN network. As in the last update, some changes are mostly internal. We removed the need to import two extra packages with were used in one line each -- easy enough to be replaced with base R. We also...

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