Articles by Matti Pastell

Python in Sweave document

February 9, 2010 | Matti Pastell

Lately I have been using a lot of Python for signal processing and I quite like SciPy. However, I have been missing something like Sweave, which is great literate programming environment for R. Today I managed to look a bit more into it and found this hack on how to ... [Read more...]

ESS on Mac OS X

November 25, 2009 | Matti Pastell

One of the search terms that bring people frequently to my site is “install ESS on Mac OS X” or something like that. As it turns out installing ESS on OS X is really easy, but Google search does not really bring up good instructions. There are at least two ... [Read more...]

MATLAB style stem plot with R

November 9, 2009 | Matti Pastell

Recently I wanted to plot an impulse response function with R and missed the MATLAB style stem plot for doing it. I couldn’t find an R function for it with a quick Google search so I made my own. So here is the function and a small example : #T...
[Read more...]

R 64 bit on Mac OSX with ESS

August 6, 2009 | Matti Pastell

So today I compiled 64 bit R 2.91 on Mac OS X   10.5.7 in order to get maximum speed for my analyses. The speed increase I got was 15-25 %, when I ran some tests with matrix calculation and intensive loops. Note that you can also download optimized binaries from  http://r.research.att.... [Read more...]

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