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

biomaRt and GenomeGraphs: a worked example

June 6, 2010
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biomaRt and GenomeGraphs: a worked example

As promised a few posts ago, another demonstration of the excellent biomaRt package, this time in conjunction with GenomeGraphs. Here’s what we’re going to do: Grab some public microarray data Normalise and get a list of the most differentially-expressed probesets Use biomaRt to fetch the genes associated with those probesets Plot the data using GenomeGraphs

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MODIS processing with R, GDAL, and the NCO tools

June 3, 2010
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MODIS processing with R, GDAL, and the NCO tools

I use MODIS data for analysis of vegetation dynamics around the world.  The native HDF file format provided by NASA is great for archiving the data (it's amazing how much information they include in each file), but unfortunately there aren't many ...

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MODIS processing with R, GDAL, and the NCO tools

June 3, 2010
By
MODIS processing with R, GDAL, and the NCO tools

I use MODIS data for analysis of vegetation dynamics around the world.  The native HDF file format provided by NASA is great for archiving the data (it's amazing how much information they include in each file), but unfortunately there aren't many tools for directly (and easily) extracting data stored across files like there are for the

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MODIS processing with R, GDAL, and the NCO tools

June 3, 2010
By
MODIS processing with R, GDAL, and the NCO tools

I use MODIS data for analysis of vegetation dynamics around the world.  The native HDF file format provided by NASA is great for archiving the data (it's amazing how much information they include in each file), but unfortunately there aren't many tools for directly (and easily) extracting data stored across files like there are for the NetCDF format.  I...

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MLB Baseball Pitching Matchups ~ manipulating pitch f/x data using the RMySQL package in R

May 31, 2010
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MLB Baseball Pitching Matchups ~ manipulating pitch f/x data using the RMySQL package in R

After downloading some pitch f/x data using my R script, we can finally have some fun. But because the pitch f/x data is very elaborate, R can easily get overwhelmed by copying the dataset back and forth in memory, as you manipulate the data. So the natural progression is to use relational database systems. Here,

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Introduction to using R with org-babel, Part 1

May 23, 2010
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This post originally appeared on my Wordpress blog on May 23, 2010. I present it here in its original form. In my opinion, the description of orgmode by its creator as a tool "for keeping notes, maintaining ToDo lists, doing project planning,...

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Introduction to using R with org-babel, Part 1

May 23, 2010
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This post originally appeared on my Wordpress blog on May 23, 2010. I present it here in its original form. In my opinion, the description of orgmode by its creator as a tool "for keeping notes, maintaining ToDo lists, doing project planning,...

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MLB Baseball Pitching Matchups ~ downloading pitch f/x data using the XML package in R [updatedx6]

May 18, 2010
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MLB Baseball Pitching Matchups ~ downloading pitch f/x data using the XML package in R [updatedx6]

Update x6 (Jul 27): so I guess people want pitch counts. The data @ MLB seems to only give the pitch count of the end result and the strikes/balls/outs of the particular pitch. Of course you can combine them to get the pitch count. Stupid WordPress comments strip out necessary HTML to properly display code,

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robot (SPX) DNA Management Techniques

May 18, 2010
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robot (SPX) DNA Management Techniques

Yes, this is related to trading, but no, it is not my thesis on why the Euro is going to parity. Instead, it is sort of a workshop for robot(SPX) developers on how to organize their digital DNA. As you begin to use programming as a money extraction tool on the markets, you'll soon find...

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Computational Statistics

May 9, 2010
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Computational Statistics

Do not resort to Monte Carlo methods unnecessarily. When I received this 2009 Springer-Verlag book, Computational Statistics, by James Gentle a while ago, I briefly took a look at the table of contents and decided to have a better look later… Now that I have gone through the whole book, I can write a short

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