1457 search results for "how to import image file to r"

R package dependencies (2017)

January 12, 2017
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R package dependencies (2017)

R package dependencies Erich Neuwirth January 13, 2017 CRAN at the moment (2017-01-13 01:09:18) has 9884 R packages. Quite a few of these packages are required by other packages (by Depends, Imports, or LinkingTo) Required by Packages 0 7549 1-9 1805 10-99 393 100-999 111 1000-1999 18 2000+ 8 So there are 8 packages required

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December 2016 Package Picks

January 11, 2017
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by Joseph Rickert Last month, 217 new packages were submitted to CRAN. By my count this was the highest monthly value recorded for the past nine years. Below, are brief descriptions of fifty-two of these new-for-December packages grouped into six categories: Data, Data Science, Financial Analysis, Statistics, Utilities and Visualizations. The Financial Analysis category is

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Random Forest Classification of Mushrooms

January 10, 2017
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Random Forest Classification of Mushrooms

A post on how to use the randomForest package in R to classify data. This focuses on classifying mushrooms as edible or poisonous.

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Magic reprex

January 10, 2017
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Magic reprex

Making reproducible examples can be hard. There’s a lot of things you need to consider. Like, making sure your environment is clean, the right packages are loaded, the code is formatted nicely, and images are the right resolution and dimension. Get...

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Clustering executed SQL Server queries using R as tool for

January 8, 2017
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Clustering executed SQL Server queries using R as tool for

When query execution performance analysis is to be done, there are many ways to find which queries might cause any unwanted load or cause stall on the server. By encouraging DBA community to start practicing the advantage or R Language and world of data science, I have created a demo to show, how statistics on … Continue...

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Using R sp_execute_external_script with JSON

January 8, 2017
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Using R sp_execute_external_script with JSON

JSON has become part of the SQL Server in the same version as R. Both were very highly anticipated and awaited from the community. JSON has very powerful statements for converting to and from JSON for storing into / from SQL Server engine (FOR JSON and JSON VALUE, etc).  And since it is gaining popularity … Continue...

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Beat the Market with Meucci and Markowitz

January 5, 2017
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Beat the Market with Meucci and Markowitz

  Introduction I am very excited to finally share some of my research exploring Meucci’s (Meucci (2005)) portfolio optimization methods, and how the resulting portfolios compare to the use of historical data. For those unfamiliar with Attilio Meucci, he runs an annual Advanced Risk and Portfolio Managment Bootcamp in New York City every summer. The … Continue...

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Plotting a map with ggplot2, color by tile

January 5, 2017
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Plotting a map with ggplot2, color by tile

Introduction Last week I was playing with creating maps using R and GGPLOT2. As I was learning I realized information about creating maps in ggplot is scattered over the internet. So here I combine all that knowledge. So if something is absolutel...

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SIR model with deSolve & ggplot2

January 4, 2017
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SIR model with deSolve & ggplot2

This is my first post ever… and in 2017!  Since I am currently fun-employed, my hope is to upload some interesting material on using R on a weekly basis. Making this an informative and motivational blog to share my interests and mini-projects in R. Now on to this post’s material… Last year in my infectious disease epidemiology course, … Continue...

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Technologies worth learning for data science

As a complement to my note on R as a data science language, this note lists ten other technologies that you might want to learn to use, or at least monitor, if you are interested in learning data science. Communication Git is a concurrent versioning...

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