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Python - Calculate the maximum of column values of a Pandas DataFrame
To get the maximum of column values, use the max() function. At first, import the required Pandas library −
import pandas as pd
Now, create a DataFrame with two columns −
dataFrame1 = pd.DataFrame(
{
"Car": ['BMW', 'Lexus', 'Audi', 'Tesla', 'Bentley', 'Jaguar'],"Units": [100, 150, 110, 80, 110, 90] }
)Finding the maximum value of a single column “Units” using max() −
print"Maximum Units from DataFrame1 = ",dataFrame1['Units'].max()
In the same way, we have calculated the maximum value from the 2nd DataFrame.
Example
Following is the complete code −
import pandas as pd
# Create DataFrame1
dataFrame1 = pd.DataFrame(
{
"Car": ['BMW', 'Lexus', 'Audi', 'Tesla', 'Bentley', 'Jaguar'],"Units": [100, 150, 110, 80, 110, 90] }
)
print"DataFrame1 ...\n",dataFrame1
# Finding maximum value of a single column "Units"
print"Maximum Units from DataFrame1 = ",dataFrame1['Units'].max()
# Create DataFrame2
dataFrame2 = pd.DataFrame(
{
"Product": ['TV', 'PenDrive', 'HeadPhone', 'EarPhone', 'HDD', 'SSD'],"Price": [8000, 500, 3000, 1500, 3000, 4000]
}
)
print"\nDataFrame2 ...\n",dataFrame2
# Finding maximum value of a single column "Price"
print"Maximum Price from DataFrame2 = ",dataFrame2['Price'].max()Output
This will produce the following output −
DataFrame1 ... Car Units 0 BMW 100 1 Lexus 150 2 Audi 110 3 Tesla 80 4 Bentley 110 5 Jaguar 90 Maximum Units from DataFrame1 = 150 DataFrame2 ... Price Product 0 8000 TV 1 500 PenDrive 2 3000 HeadPhone 3 1500 EarPhone 4 3000 HDD 5 4000 SSD Maximum Price from DataFrame2 = 8000
Updated on: 20-Sep-2021
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