Yesterday, I attempted to make some logos out of the degenerate USS simulated data that Rosie sent me. Turns out, I was doing it wrong. After checking out the original logo paper, I was able to figure out how to make my own logos in Excel. I wasn't supposed to plot the "information content" of each base; I was supposed to take the total information content (in bits) of each position (as determined by the equation in the last post) and then, for each base, multiply that amount by the observed frequency of that base to get the height of that element in the logo. So, below I put the proper logos for the selected and unselected degenerate USS sets (background corrected):
Here's the selected set:
Here's the unselected set:
Woo!
Thursday, October 1, 2009
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