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Do not refer to NumPy array using the term list #1067

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Nov 16, 2023
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Do not refer to NumPy array using the term list #1067

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fc417a4
Do not refer to NumPy array using the term list
fiveop Oct 13, 2023
b917cb6
Use correct term for intended data type
fiveop Nov 13, 2023
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6 changes: 3 additions & 3 deletions episodes/10-defensive.md
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Expand Up @@ -456,7 +456,7 @@ This violates another important rule of programming:
## Pre- and Post-Conditions

Suppose you are writing a function called `average` that calculates
the average of the numbers in a list.
the average of the numbers in a NumPy array.
What pre-conditions and post-conditions would you write for it?
Compare your answer to your neighbor's:
can you think of a function that will pass your tests but not his/hers or vice versa?
Expand All @@ -467,9 +467,9 @@ can you think of a function that will pass your tests but not his/hers or vice v

```python
# a possible pre-condition:
assert len(input_list) > 0, 'List length must be non-zero'
assert len(input_array) > 0, 'List length must be non-zero'
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# a possible post-condition:
assert numpy.amin(input_list) <= average <= numpy.amax(input_list),
assert numpy.amin(input_array) <= average <= numpy.amax(input_array),
'Average should be between min and max of input values (inclusive)'
```

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