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My program is to find the number of types, the number of tokens, and the type-to-token ratio. However, I don't know how to tell Python the answer to ttr is not an integer. 

from nltk.corpus import inaugural 

print inaugural.fileids()

tokens = inaugural.words("1789-Washington.txt")

numtokens = len(tokens)
print numtokens

types = sorted(set(tokens))
numtypes = len(types)
print numtypes

# This is the part I'm unsure about.     
ttr = numtypes/numtokens
print ttr
tobias_k
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Auborey
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1 Answers1

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If you are working in Python 3, the division operator / is performing floating point division by default: 

>>> 3 / 2
1.5
>>> 4 / 2
2.0

since integer division is handled by the // operator.

In Python 2.x, if you want decimal accuracy in integer division, you can convert either the nominator or the denominator to float(), like this:

ttf = float(numtypes) / numtokens

Alternatively, as tobias_k points out, you can do

>>> from __future__ import division
>>> 3 / 2
1.5

to get Python3-esque division in Python 2.x

VHarisop
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