Today’s challenge. Take a look at this array, which contains the “title” field for the 6 samples from GSE1323, a series in the GEO microarray database:
['SW-480-1','SW-480-2','SW-480-3','SW-620-1','SW-620-2','SW-620-3']
Humans are very good at classification. Almost instantly, you’ll see that there are 2 classes, “SW-480″ and “SW-620″, each with 3 samples. How can we write a program to do the same job?
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