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How to use random.uniform() Function

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by vinitha@openweaver.com dot icon Updated: Sep 19, 2023

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In Python, you can use the random.uniform() function to generate random float numbers. It generates numbers within a specified range. This function is part of the random module in Python. 


People use it in simulations, games, statistical analysis, and more. The random.uniform() function generates uniform random numbers. However, there are various ways to generate random numbers with specific distributions. 


Let's explore the generation of different types of random numbers. 

  • Uniform Random Numbers  
  • Normal (Gaussian) Distributed Random Numbers  
  • Exponential Distributed Random Numbers  
  • Custom Probability Distribution  
  • Discrete random Sequence Numbers  


Random numbers are important in computer programming for many different uses. Here's an overview of their importance in various programming contexts:  

  • Dice Rolls and Games  
  • Simulations  
  • Statistical Analysis  
  • Random Testing and Debugging  


There are many ways to generate random numbers based on the context and needs of the application. Here are some common methods for generating random numbers:  

  • Pseudo-Random Number Generators (PRNGs)  
  • Hardware Random Number Generators (HRNGs)  
  • Mathematical Functions  
  • Physical Processes  
  • User Input  


In conclusion, random numbers are a fundamental element of computer programming. It finds applications across various domains. They serve to introduce unpredictability, model uncertainty, enhance security, and optimize algorithms.  

Fig: Preview of the output that you will get on running this code from your IDE

Code

In this solution we are using Python random library

Can random.uniform(0,1) ever generate 0 or 1?

PythondotLines of Code : 17dotLicense : Strong Copyleft (CC BY-SA 4.0)

Dependent Libraries : 
>>> import random, sys
>>> def find_b():
...     a, b = 0, sys.float_info.epsilon
...     while random.uniform(a, b) != b:
...         b /= 2
...     else:
...         return b
...
>>> print("uniform(0, {0}) == {0}".format(find_b()))
...
uniform(0, 4e-323) == 4e-323

>>> a, b = sys.float_info.max - (2 ** 970), sys.float_info.max
>>> values = [random.uniform(a, b) for _ in range(10000)]
>>> values.count(sys.float_info.max)  # should be roughly 5000
4997

Instructions

Follow the steps carefully to get the output easily.


  1. Download and Install the PyCharm Community Edition on your computer.
  2. Open the terminal and install the required libraries with the following commands.
  3. Create a new Python file on your IDE.
  4. Copy the snippet using the 'copy' button and paste it into your python file.
  5. Remove the last 5 lines of code for better understanding
  6. Run the current file to generate the output.


I hope you found this useful.


I found this code snippet by searching for ' Can random.uniform(0,1) ever generate 0 or 1?' in Kandi. You can try any such use case!

Environment tested

I tested this solution in the following versions. Be mindful of changes when working with other versions.

  1. PyCharm Community Edition 2023.1
  2. The solution is created in Python 3.11.1 Version
  3. higher 0.2.1 Version



Using this solution, we can able to use random.uniform() Function with simple steps. This process also facilities an easy way to use, hassle-free method to create a hands-on working version of code which would help us to use random.uniform() Function .

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higherby facebookresearch

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License: Permissive (Apache-2.0)

higher is a pytorch library allowing users to obtain higher order gradients over losses spanning training loops rather than individual training steps.

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            higherby facebookresearch

            Python doticon star image 1528 doticonVersion:Currentdoticon License: Permissive (Apache-2.0)

            higher is a pytorch library allowing users to obtain higher order gradients over losses spanning training loops rather than individual training steps.
            Support
              Quality
                Security
                  License
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                      You can search for any dependent library on kandi like ' higher '.

                      FAQ:  

                      1. How do you use the NumPy random uniform to generate random numbers?  

                      To use the NumPy library's random.uniform() function to generate random numbers. To start, import the NumPy library. Then, use the random.uniform() function with the parameters you want. 

                      Here's how you can do it:   

                      • Import the NumPy library.  
                      • Generate random numbers using numpy.random.uniform()  


                      2. What does NumPy generate to create a random floating-point number?  

                      A random floating-point number is a numerical value with a decimal fraction. The creation of it seems random and evenly spread out in a set range.  

                      Here's how you can generate random floating-point numbers using NumPy:  

                      • Import the NumPy library.  
                      • Use numpy.random.uniform() to generate random floating-point numbers within a specified range.  


                      3. How can we generate random numbers from distributions like Weibull or Gaussian?  

                      Weibull Distribution:  

                      To get random values, use the numpy.random.weibull() function.  

                      Gaussian (Normal) Distribution:  

                      To get random values from a Gaussian distribution, use numpy.random.normal().  


                      4. Can I use a NumPy array to store the output of the NumPy random uniform function?  

                      Below is a quick summary of the probability distributions frequently used in NumPy. 

                      • Uniform Distribution  
                      • Gaussian (Normal) Distribution  
                      • Exponential Distribution  
                      • Gamma Distribution  


                      5. Can float numbers be generated using Jupyter Notebook?  

                      Yes, you can generate floating-point numbers in a Jupyter Notebook. This is a basic example of creating random decimal numbers in a Jupyter Notebook with Python. 

                      • Open a Jupyter Notebook.  
                      • Create a new code cell by clicking the "+" button or using keyboard shortcuts.  
                      • In the code cell, you can use Python code to generate floating-point numbers.  
                      • Run the code cell by clicking the "Run" button or using keyboard shortcuts.  
                      • The output area will show the number generated by the code. 

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