277 search results for "heatmap"

Using MongoDB with R

March 2, 2017
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Using MongoDB with R

MongoDB is a NoSQL database program which uses JSON-like documents with schemas. It is free and open-source cross-platform database. MongoDB, top NoSQL database engine in use today, could be a good data storage alternative when analyzing large volume data. To use MongoDB with R, first, we have to download and install MongoDB Next, start MongoDB. Related Post

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leaflet 1.1.0

February 22, 2017
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leaflet 1.1.0

Leaflet 1.1.0 is now available on CRAN! The Leaflet package is a tidy wrapper for the Leaflet.js mapping library, and makes it incredibly easy to generate interactive maps based on spatial data you have in R. This release was nearly a year in the making, and includes many important new features. Easily add textual labels on

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Ehlers’s Autocorrelation Periodogram

February 15, 2017
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Ehlers’s Autocorrelation Periodogram

This post will introduce John Ehlers’s Autocorrelation Periodogram mechanism–a mechanism designed to dynamically find a lookback period. That is, the … Continue reading →

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R and SQL Server articles

February 8, 2017
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R and SQL Server articles

In past couple of months, I have prepared several articles on R and SQL Server that have been published on SQL Server Central. The idea was, to have couple of articles covering the introduction to R, to basics on R Server, to some practical cases on R with SQL Server. 1) Using Microsoft R in … Continue...

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Practical Guide to Cluster Analysis in R – Book

February 7, 2017
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Practical Guide to Cluster Analysis in R – Book

Introduction Large amounts of data are collected every day from satellite images, bio-medical, security, marketing, web search, geo-spatial or other automatic equipment. Mining knowledge from these big data far exceeds human’s abilities. Clustering is one of the important data mining methods for...

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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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Creating a “balloon plot” as alternative to a heat map with ggplot2

January 24, 2017
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Creating a “balloon plot” as alternative to a heat map with ggplot2

Heat maps are great to compare observations with lots of variables (which must be comparable in terms of unit, domain, … Read More →

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In case you missed it: December 2016 roundup

January 11, 2017
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In case you missed them, here are some articles from December of particular interest to R users. Power BI now has a gallery of custom visualizations built with R. Chicago's Department of Public Health uses R to prioritize health inspections at restaurants. A beautiful map of Switzerland municipalities combined with a relief map of the mountains, created with R....

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Gene homology Part 3 – Visualizing Gene Ontology of Conserved Genes

January 4, 2017
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Gene homology Part 3 – Visualizing Gene Ontology of Conserved Genes

Which genes have homologs in many species? In Part 1 and Part 2 I have already explored gene homology between humans and other species. But there I have only considered how many genes where shared between the species. In this post I want to have a cl...

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Interview with Joe Cheng

January 4, 2017
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by Joseph Rickert Recently, I had the opportunity to interview RStudio’s Joe Cheng. Joe, the inventor and lead developer for Shiny, was the first person that J.J. Allaire invited to join the RStudio IDE project. We talked about those early days, how Shiny got started, Joe’s background as a software developer, his take on the

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