Pandas: Create a histograms plot of different columns
Pandas: Plotting Exercise-7 with Solution
Write a Pandas program to create a histograms plot of opening, closing, high, low stock prices of Alphabet Inc. between two specific dates.
Use the alphabet_stock_data.csv file to extract data.
alphabet_stock_data:
alphabet_stock_data Table
Date | Open | High | Low | Close | Adj Close | Volume |
---|---|---|---|---|---|---|
2020-04-01 | 1122 | 1129.689941 | 1097.449951 | 1105.619995 | 1105.619995 | 2343100 |
2020-04-02 | 1098.26001 | 1126.859985 | 1096.400024 | 1120.839966 | 1120.839966 | 1964900 |
2020-04-03 | 1119.015015 | 1123.540039 | 1079.810059 | 1097.880005 | 1097.880005 | 2313400 |
2020-04-06 | 1138 | 1194.660034 | 1130.939941 | 1186.920044 | 1186.920044 | 2664700 |
... | ... | ... | ... | ... | ... | ... |
... | ... | ... | ... | ... | ... | ... |
2020-09-29 | 1470.390015 | 1476.662964 | 1458.805054 | 1469.329956 | 1469.329956 | 978200 |
2020-09-30 | 1466.800049 | 1489.75 | 1459.880005 | 1469.599976 | 1469.599976 | 1700600 |
Sample Solution:
Python Code :
import pandas as pd
import matplotlib.pyplot as plt
df = pd.read_csv("alphabet_stock_data.csv")
start_date = pd.to_datetime('2020-4-1')
end_date = pd.to_datetime('2020-9-30')
df['Date'] = pd.to_datetime(df['Date'])
new_df = (df['Date']>= start_date) & (df['Date']<= end_date)
df1 = df.loc[new_df]
df2 = df1[['Open','Close','High','Low']]
#df3 = df2.set_index('Date')
plt.figure(figsize=(25,25))
df2.plot.hist(alpha=0.5)
plt.suptitle('Opening/Closing/High/Low stock prices of Alphabet Inc.,\n From 01-04-2020 to 30-09-2020', fontsize=12, color='blue')
plt.show()
Sample Output:
Click for download alphabet_stock_data.csv
Python Code Editor:
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Previous: Write a Pandas program to create a horizontal stacked bar plot of opening, closing stock prices of Alphabet Inc. between two specific dates.
Next: Write a Pandas program to create a stacked histograms plot of opening, closing, high, low stock prices of Alphabet Inc. between two specific dates.
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Python: Tips of the Day
Find current directory and file's directory:
To get the full path to the directory a Python file is contained in, write this in that file:
import os dir_path = os.path.dirname(os.path.realpath(__file__))
(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)
To get the current working directory use
import os cwd = os.getcwd()
Documentation references for the modules, constants and functions used above:
- The os and os.path modules.
- The __file__ constant
- os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
- os.path.dirname(path) (returns "the directory name of pathname path")
- os.getcwd() (returns "a string representing the current working directory")
- os.chdir(path) ("change the current working directory to path")
Ref: https://bit.ly/3fy0R6m
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