Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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using pandas, python

Uniform Distribution

Use uniform.rvs and assign its output to the variable samples. In this function, specify the location (loc) parameter to be 100, set the scale to be 20, and the sample size to be 1000 and generate histogram. 

 

 

Uniform Distribution
Use uniform.rvs and assign its output to the variable samples . In this function, specify the location ( loc ) parameter to be 100, set the scale
to be 20, and the sample size to be 1000.
Note: For these distributions, I want you to look up the documentation to understand the parameters you need to use and to get used to understanding
python documentation.
# YOUR CODE HERE
samples
uniform.rvs (loc= 100, scale= 20, size=1000)
assert len (samples)==1000
assert isinstance(samples, np.ndarray)
Now, generate a histogram of this distribution
# YOUR CODE HERE
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Transcribed Image Text:Uniform Distribution Use uniform.rvs and assign its output to the variable samples . In this function, specify the location ( loc ) parameter to be 100, set the scale to be 20, and the sample size to be 1000. Note: For these distributions, I want you to look up the documentation to understand the parameters you need to use and to get used to understanding python documentation. # YOUR CODE HERE samples uniform.rvs (loc= 100, scale= 20, size=1000) assert len (samples)==1000 assert isinstance(samples, np.ndarray) Now, generate a histogram of this distribution # YOUR CODE HERE
Expert Solution
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Step 1

Using python:

Import packages:

# import uniform distribution
from scipy.stats import uniform
import numpy as np
# import seaborn
import seaborn as sns
# settings for seaborn plotting style
sns.set(color_codes=True)
# settings for seaborn plot sizes
sns.set(rc={'figure.figsize':(5,5)})

uniform function generate uniform continuous variable between the specified interval through its loc and scale arguments. 

samples=uniform.rvs(loc=100,scale=20,size=1000)

assert len(samples)==1000

assert isinstance(samples, np.ndarray)

use Seaborn’s distplot to plot the histogram of the distribution:

ax = sns.distplot(samples,
                  bins=100,
                  kde=True,
                  color='skyblue',
                  hist_kws={"linewidth": 15,'alpha':1})
ax.set(xlabel='Uniform Distribution ', ylabel='Frequency')

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