Dissection of the previous slide

Specifying a sublist, e.g., the 4th line until the last line: lines[3:] Transforming all words in a line to floats:
yvalues = [float(x) for x in line.split()]

# same as
numbers = line.split()
yvalues = []
for s in numbers:
    yvalues.append(float(s))

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