To return the label from the index or if not present, the previous one, use the index.asof() method in Pandas.
At first, import the required libraries −
import pandas as pd
Creating Pandas index −
index = pd.Index([10, 20, 30, 40, 50, 60, 70])
Display the Pandas index −
print("Pandas Index...\n",index)
Return the label from the index or if not present, the previous one −
print("\nGet the label from the index...\n",index.asof(43))
Example
Following is the code −
import pandas as pd # Creating Pandas index index = pd.Index([10, 20, 30, 40, 50, 60, 70]) # Display the Pandas index print("Pandas Index...\n",index) # Return the number of elements in the Index print("\nNumber of elements in the index...\n",index.size) # Return the label from the index or if not present, the previous one print("\nGet the label from the index...\n",index.asof(43))
Output
This will produce the following output −
Pandas Index... Int64Index([10, 20, 30, 40, 50, 60, 70], dtype='int64') Number of elements in the index... 7 Get the label from the index... 40