﻿ NumPy: Create two arrays of six elements - w3resource # NumPy: Create two arrays of six element

## NumPy: Array Object Exercise-163 with Solution

Create two arrays of six elements. Write a NumPy program to count the number of instances of a value occurring in one array on the condition of another array.

Sample Solution:

Python Code:

``````import numpy as np
x = np.array([10,-10,10,-10,-10,10])
y = np.array([.85,.45,.9,.8,.12,.6])
print("Original arrays:")
print(x)
print(y)
result = np.sum((x == 10) & (y > .5))
print("\nNumber of instances of a value occurring in one array on the condition of another array:")
print(result)
```
```

Sample Output:

```Original arrays:
[ 10 -10  10 -10 -10  10]
[0.85 0.45 0.9  0.8  0.12 0.6 ]

Number of instances of a value occurring in one array on the condition of another array:
3
```

Python Code Editor:

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## Python: Tips of the Day

Set comprehension:

```>>> m = {x ** 2 for x in range(5)}
>>> m
{0, 1, 4, 9, 16}
```