1561 search results for "how to import image file to r"

An Analysis of Global Shark Attacks between 1543-2016

January 17, 2017
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An Analysis of Global Shark Attacks between 1543-2016

Travelling to a warm country and plan on hitting the beach? “Beware of the sharks!!” While the expression has almost become a cliché at this stage, shark attacks do occur and the fact that the global ocean is heating up potentially facilitates the occurrence of attacks (I would refer to them as interactions but we… Continue reading...

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Predicting the Zakopane 2017 men’s ski jumping competition

January 16, 2017
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Predicting the Zakopane 2017 men’s ski jumping competition

When I was a young boy with a wild imagination, I used to try my hand at numerous sports ranging from tennis to gaelic footbal to soccer, each with varying degrees of success. Living in the countryside throughout my childhood, a big garden allowed me to construct vivid simulations of soccer championships (crowd and all)… Continue reading...

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Getting Started With R: A Beginner’s Guide, Part 2

January 16, 2017
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Getting Started With R: A Beginner’s Guide, Part 2

Last week, we installed R and R Studio, and we tried out a few simple R commands in the console. But using R in interactive mode, while powerful, has some limits. Today we are going to learn how to use

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Feature Selection in Machine Learning (Breast Cancer Datasets)

January 14, 2017
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Feature Selection in Machine Learning (Breast Cancer Datasets)

Machine learning uses so called features (i.e. variables or attributes) to generate predictive models. Using a suitable combination of features is essential for obtaining high precision and accuracy. Because too many (unspecific) features pose the prob...

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Animated barplot and google map with R

January 13, 2017
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Animated barplot and google map with R

It might happen that you will need a animated graph of any kind. For purposes of plotting demographic data and changes through the years, Google Maps and plotting maps, merging and converting jpg files into a animated gif, sure will give a nice visualization effect. Here is a sample of changes over the time period … Continue...

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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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