Get the index of minimum value in DataFrame column

Pandas DataFrame is two-dimensional size-mutable, potentially heterogeneous tabular data structure with labeled axes (rows and columns).

Let’s see how can we get the index of minimum value in DataFrame column.

Observe this dataset first. We’ll use ‘Weight’ and ‘Salary’ columns of this data in order to get the index of minimum values from a particular column in Pandas DataFrame.

# importing pandas module
import pandas as pd

# making data frame
df = pd.read_csv("https://media.geeksforgeeks.org/wp-content/uploads/nba.csv")

df.head(10)

Code #1: Check the index at which minimum weight value is present.

# importing pandas module
import pandas as pd

# making data frame
df = pd.read_csv("nba.csv")

# Returns index of minimum weight
df[['Weight']].idxmin()

Output:

We can verify whether the minimum value is present in index or not.

# importing pandas module
import pandas as pd

# making data frame
df = pd.read_csv("nba.csv")

# from index 140 to 154
df.iloc[140:155]

Output:

Code #2: Let’s insert a new row at index 0, having minimum salary and then print the minimum salary.

# importing pandas module
import pandas as pd

# making data frame
df = pd.read_csv("nba.csv")

new_row = pd.DataFrame({'Name':'Geeks', 'Team':'Boston', 'Number':3,
                        'Position':'PG', 'Age':33, 'Height':'6-2',
                        'Weight':189, 'College':'MIT', 'Salary':99}
                         , index=[0])

df = pd.concat([new_row, df]).reset_index(drop=True)
df.head(5)

Output:

Now, let’s check if the minimum salary is present at index 0 or not.

# Returns index of minimum salary
df[['Salary']].idxmin()

Output: