228 search results for "heatmap"

Making Faceted Heatmaps with ggplot2

February 14, 2016
By
Making Faceted Heatmaps with ggplot2

We were doing some exploratory data analysis on some attacker data at work and one of the things I was interested is what were “working hours” by country. Now, I don’t put a great deal of faith in the precision of geolocated IP addresses since every geolocation database that exists thinks I live in Vermont

Read more »

Fun with Heatmaps and Plotly

December 29, 2015
By

Just because we all like numbers doesn’t mean we can’t have some fun. Here’s to wishing to everyone a very Happy New Year ! # install.packages("jpeg") library(jpeg) library(plotly) # Download a jpeg file from imgur URL <- "http://i.imgur.com/FWsFq6r.jpg" file <- tempfile() download.file(URL, file, mode = "wb") # Read in JPEG file j <- readJPEG(file) j

Read more »

Visualising thefts using heatmaps in ggplot2

August 17, 2015
By
Visualising thefts using heatmaps in ggplot2

This is a continuation of my previous article, where I gave a basic overview of how to construct heatmaps in R. Here, I will show you how to use R packages to build a heatmap on top of the map of Chicago to see which areas have the most amount of crime. We will require

Read more »

d3heatmap: Interactive heat maps

June 24, 2015
By
d3heatmap: Interactive heat maps

We’re pleased to announce d3heatmap, our new package for generating interactive heat maps using d3.js and htmlwidgets. Tal Galili, author of dendextend, collaborated with us on this package. d3heatmap is designed to have a familiar feature set and API for anyone who has used heatmap or heatmap.2 to create static heatmaps. You can specify dendrogram, clustering, and scaling options

Read more »

Cohort Analysis with Heatmap

Cohort Analysis with Heatmap

Previously I shared the data visualization approach for descriptive analysis of progress of cohorts with the “layer-cake” chart (part I and part II). In this post, I want to share another interesting visualization that not only can be used for descriptive analysis as well but would be more helpful for analyzing a large number of cohorts.... Read More »

Read more »

R User Group Recap: Heatmaps and Using the caret Package

April 10, 2015
By
R User Group Recap: Heatmaps and Using the caret Package

At our most recent R user group meeting we were delighted to have presentations from Mark Lawson and Steve Hoang, both bioinformaticians at Hemoshear. All of the code used in both demos is in our Meetup’s GitHub repo.Making heatmaps in RSteve started with an overview of making heatmaps in R. Using the iris dataset, Steve demonstrated...

Read more »

Recreating the vaccination heatmaps in R

April 9, 2015
By
Recreating the vaccination heatmaps in R

In February the WSJ graphics team put together a series of interactive visualisations on the impact of vaccination that blew up on twitter and facebook, and were roundly lauded as great-looking and effective dataviz. Some of these had enough data available to look … Continue reading →

Read more »

Recreating the vaccination heatmaps in R

April 9, 2015
By
Recreating the vaccination heatmaps in R

In February the WSJ graphics team put together a series of interactive visualisations on the impact of vaccination that blew up on twitter and facebook, and were roundly lauded as great-looking and effective dataviz. Some of these had enough data available to look … Continue reading →

Read more »

Extracting Heatmap

March 11, 2015
By

Inspired by this tweet, I wanted to try to do something similar in JavaScript. Very cool hack: Extracting the original data from a heatmap image with R vector ops #rstats http://t.co/Lbi6FCXdrI pic.twitter.com/LCabkMGjXY— Gregory Piatetsky (@kdnugge...

Read more »

Extracting the original data from a heatmap image

March 4, 2015
By
Extracting the original data from a heatmap image

The paper Analysis of the Linux Kernel Evolution Using Code Clone Coverage analysed 136 versions of Linux (from 1.0 to 2.6.18.3) and calculated the amount of source code that was shared, going forward, between each pair of these versions. When I saw the heatmap at the end of the paper (see below) I knew it

Read more »

Sponsors

Mango solutions



RStudio homepage



Zero Inflated Models and Generalized Linear Mixed Models with R

Quantide: statistical consulting and training



http://www.eoda.de









ODSC

CRC R books series













Contact us if you wish to help support R-bloggers, and place your banner here.

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)