2008 search results for "map"

Basic Plots in R

March 7, 2011
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Basic Plots in R

Here's a tutorial I recorded on producing basic plots in R.I lost the script file I used to create the video to a horrifying black screen of death, but I used the data from the previous post (available here). Hopefully, the video is clear enough that ...

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Choropleths Made Easy!

March 5, 2011
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Choropleths Made Easy!

Choropleth Maps are very useful to visualize spatial trends. There have been several blog posts providing detailed instructions on how to create a choropleth map in R using map, spplot and ggplot2. However, I believe that the p...

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Testing Multiple Linear Restrictions in R

March 3, 2011
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Testing Multiple Linear Restrictions in R

This video shows a couple of things:1. How to test (multiple) linear restrictions in R.2. How to install a package in R. Here is the code I use in the video (with some extra comments).Here is the data set that I use in the video.

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R Video Tutorial for Spatial Statistics

March 2, 2011
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Welcome everybody, this is a video tutorial that will try to teach you how to use R for spatial statistics and interpolation. I’m a PhD student in soil science and in particular my project is about digital soil mapping. During my work I often use R particularly for geostatstical interpolation. ...

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R Video Tutorial for Spatial Statistics

March 2, 2011
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Welcome everybody, this is a video tutorial that will try to teach you how to use R for spatial statistics and interpolation. I’m a PhD student in soil science and in particular my project is about digital soil mapping. During my work I often use R particularly for geostatstical interpolation. ...

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The easiest way to get UTR sequence

March 2, 2011
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I just figure out the way to query UTR sequence from ensembl by biomart tool.It is very simple compare with using bioperl to parse gbk file to extract UTR sequence.Read More: 232 Words Totally

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The easiest way to get UTR sequence

March 2, 2011
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I just figure out the way to query UTR sequences from ensembl by biomart tool.It is very simple compared with using bioperl to parse gbk files to extract UTR sequences.Read More: 236 Words Totally

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Review of R Graphs Cookbook

March 1, 2011
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The kind people at Packt Publishing recently asked me to review one of their newest R books: the R Graphs Cookbook. In general, I think pretty highly of the book: it provides a nice overview of the basic tools for visualizing data in R. If you’re just getting started with creating graphs in R, this

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Extracting sea surface temperatures from NOAA’s OISSTv2

March 1, 2011
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NOAA’s Physical Sciences Division produces a global map of weekly averaged sea surface temperatures, derived from satellite sources. The data can be found at http://www.esrl.noaa.gov/psd/data/gridded/data.noaa.oisst.v2.html. I’ve put togeth...

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How Does R Deal with Categorical Explanatory Variables?

March 1, 2011
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How Does R Deal with Categorical Explanatory Variables?

Here's a video tutorial where I demonstrate an answer to this question.This video is designed to instill a baseline level of practical knowledge. There is more to how R treats factors in regression models. An interested reader should Google "R contra...

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