insert function in python Dataframe

Published: 31 August 2021
on channel: Amit Mishra

152

Insert function in python dataframe

insert() function: This function adds a new column in the dataframe at a specific location. By default, if you add a new column, it is added in the last but with insert, you can add a column at any position. 3 things are important when we are using insert() function
1. index position: At which position, the value will be added
2. column name: What will be the column name?
3. data values: What data values will be there?
Syntax:
Dataframename.insert(indexposition,”columnname”,datavalue)
Case 1: if we want to add a new column “mobile_no” and have the same value for the entire column at 2nd position, we will write
df.insert(1,”mobile_no”,”12345”)
Case 2: if we want to add a new column “fee” and want to have the different values for the entire column at 1st position, we will write
df.insert(0,”fee”,[400,500,600,400])

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