Monthly Archives: August 2007

Graphs from tables

August 30, 2007
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Samantha Ross writes:...

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Debugging in R

August 30, 2007
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Anyone who starts writing serious R code (i.e., code that involves user-written functions) soon finds the need to use debugging tools. There are a few basic tools in R that are worth knowing about. The function debug() allows one to step through the execution of a function, line by line. At any point, you can print

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Debugging in R

August 30, 2007
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Anyone who starts writing serious R code (i.e., code that involves user-written functions) soon finds the need to use debugging tools. There are a few basic tools in R that are worth knowing about. The function debug() allows one to step through the ex...

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Geometric shapes

August 29, 2007
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If you haven't seen them already, be sure to check out Barret Schloerke's geometric shapes. He's an undergrad student who's been working with us over summer to generate a variety of high-dimensional geometric shapes to explore with GGobi.The data incl...

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Geometric shapes

August 29, 2007
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If you haven't seen them already, be sure to check out Barret Schloerke's geometric shapes. He's an undergrad student who's been working with us over summer to generate a variety of high-dimensional geometric shapes to explore with GGobi.The data incl...

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XCMS on Ubuntu Feisty

August 27, 2007
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I just installed XCMS 1.9.2 on my Ubuntu system. XCMS is a GPL-ed R package for metabolomics data analysis. Just for the record, you need to install the Feisty packages for NetCDF:sudo aptitude install netcdfg-dev libnetcdf3R CMD INSTALL --library=/usr...

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Execute system commands within an R Script

August 23, 2007
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To execute a system command from within an R script, just use system(). This is handy for zipping large output files on the fly.write.csv(mydat, "mydat.csv")system("gzip mydat.csv", wait=FALSE)

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Execute system commands within an R Script

August 23, 2007
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To execute a system command from within an R script, just use system(). This is handy for zipping large output files on the fly.write.csv(mydat, "mydat.csv")system("gzip mydat.csv", wait=FALSE)

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119 days of number crunching…

August 23, 2007
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119 days of number crunching…

Just checked on the 70000+ simulations I submitted to the Cow last night. The purpose of these runs is to explore a given system (the logistic growth model in this case) using different implementations of the stochastic simulation algorithm (aka … Continue reading →

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Cow chewing on GillespieSSA

August 22, 2007
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Cow chewing on GillespieSSA

Sorry blog for the long silence. Lately I have been juggling several time critical projects and there hardly seems to be time for such mundane activities such as sleeping, eating, never mind shaving (someone pointed out that I am starting … Continue reading →

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