play-ttt function. I am not sure exactly how, I downloaded a
fresh copy of ttt.scm from the book website and deleted and re-entered
the apparent offenders in the function and it seems to be working
fine. I think maybe I had copy and pasted part of the function from
the pdf of the text book and that the apostrophes had the wrong
encoding…but I am not sure.
Read the section on PAM Scoring Matrices from Bioinformatics and Functional Genomics.
Worked problems on Code Wars for 35 minutes.
Chapter 6.1 from “Python for Data Analysis”