1295 search results for "maps"

Extracting and Enriching Ocean Biogeographic Information System (OBIS) Data with R

January 25, 2017
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Extracting and Enriching Ocean Biogeographic Information System (OBIS) Data with R

Programmatic access to biodiversity data is revolutionising large-scale, reproducible biodiversity research. In the marine realm, the largest global database of species occurrence records is the Ocean Biogeographic Information System, OBIS. As of January 2017, OBIS contains 47.78 million occurrences of 117,345 species, all openly available and accessible via the OBIS API. The number of questions to address...

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Descriptive Analysis of MLST Data for MRSA

January 24, 2017
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Descriptive Analysis of MLST Data for MRSA

During one of my summers, I had the opportunity to conduct some research on the prevalence of methicillin-resistant Staphylococcus aureus (MRSA) in vulnerable populations and examining US emergency department data and I thought this would be a pretty interesting topic to expand on for my thesis in lieu of the increasing concerns of antimicrobial resistance, … Continue...

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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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How to do an analysis in R (part 2, visualization and analysis)

January 24, 2017
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How to do an analysis in R (part 2, visualization and analysis)

In several recent blog posts, I've emphasized the importance of data analysis. My main point has been, that if you want to learn data science, you need to learn data analysis. Data analysis is the foundation of practical data science. With that statement in mind, I want to show you step-by-step what an analysis looks like in R ... The post...

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How to use viridis colors with plotly and leaflet?

“… avoiding catastrophe becomes the first principle in bringing color to information: Above all, do no harm.” - Envisioning Information, Edward Tufte, Graphics Press, 1990 Choosing colors for your plot is not so simple. Why is that so? First of all, it depends on numerous things… What plot are you creating? What is...

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readr::problems() returns tidy data!

January 23, 2017
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A handy little trick I picked up today when using readr. Some background: I needed a mapping between ZIP Code Tabulation Areas and counties (to link to some urban/rural data). The Census Bureau provides a CSV style table that includes information about each of the ZCTA (e.g.,...

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Metro Systems Over Time: Part 1

January 21, 2017
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Metro Systems Over Time: Part 1

Note, at the time of this writing using the packages ggplot2 and ggmap from CRAN will result in an error. To avoid the error be sure to install both packages from GitHub with the package devtools and restart R if the problem persists. devtools::install_github("dkahle/ggmap") devtools::install_github("hadley/ggplot2") Introduction Metro systems are an interesting way to learn more Related Post

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How to really do an analysis in R (part 1, data manipulation)

January 16, 2017
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How to really do an analysis in R (part 1, data manipulation)

For a couple of years, I’ve been writing about the importance of data analysis, saying that data analysis is essentially the foundation of data science itself. While I admit that there’s room for argument (and I admit that the reality is a little more nuanced) I still firmly believe that data analysis is the true The post

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The Meeting Point Locator

January 16, 2017
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The Meeting Point Locator

Hi Hillary, It’s Donald, would you like to have a beer with me in La Cabra Brewing, in Berwyn, Pensilvania? (Hypothetical utilization of The Meeting Point Locator) Finding a place to have a drink with someone may become a difficult task. It is quite common that one of them does not want to move to the other’s … Continue...

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Choroplethr v3.5.3 is now on CRAN

January 16, 2017
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Choroplethr v3.5.3 is now on CRAN

A new version of choroplethr is now on CRAN. You can get it by typing the following: Motivation This new version was motivated by a few... The post Choroplethr v3.5.3 is now on CRAN appeared first on AriLamstein.com.

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