How to Create a Sequence of Linearly Increasing Values with Numpy Arrange?

In this article, we are going to create a sequence of linearly increasing values with Numpy arrange() function. 

Getting Started

By using arrange() function, we can create a sequence of linearly increasing values. This method returns an array with evenly spaced elements as per the interval. The interval mentioned is half opened i.e. [Start, Stop)

Syntax: 

numpy.arrange(start, stop, step)

Parameters:

• start is the starting value
• stop is the ending value
• step is a linear increment value with in the given range. It is optional. By default, it is 1.

Return Type:

• Return an array of elements

For example:

numpy.arrange(1,10,3)  # array([1,4,7])

Here, we have given a range from 1 to 10(start = 1 and stop = 10) but we specified step=3. That means it skips every 3 elements in a range. So In this way, we can increase linearity in data.

Example 1: 

Create elements within range with 3-step linearly.

Python3

# importing numpy module
import numpy as np

# create an elements from 1
# to 10 with 3 step linearity
print(np.arange(1, 10, 3))

# create an elements from 1
# to 20 with 3 step linearity
print(np.arange(1, 20, 3))

# create an elements from 1
# to 30 with 3 step linearity
print(np.arange(1, 30, 3))

# create an elements from 1
# to 40 with 3 step linearity
print(np.arange(1, 40, 3))

# create an elements from 1
# to 50 with 3 step linearity
print(np.arange(1, 50, 3))

Output:

Example 2:

Create elements within range with 5-step linearly.

Python3

#importing numpy module
import numpy as np

#create an elements from 1 to
# 10 with 5 step linearity
print(np.arange(1,10,5))

#create an elements from 1 to
# 20 with 5 step linearity
print(np.arange(1,20,5))

#create an elements from 1 to
# 30 with 5 step linearity
print(np.arange(1,30,5))

#create an elements from 1 to
# 40 with 5 step linearity
print(np.arange(1,40,5))

#create an elements from 1 to
# 50 with 5 step linearity
print(np.arange(1,50,5))

Output:

Example 3:

Create elements within the range of 34 to 50 with 5-step linearly. 

Python3

#importing numpy module
import numpy as np

#create an elements from 34 to 50 with 4 step linearity
print(np.arange(34,50,5))

Output:

[34 39 44 49]