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Python | Pandas DataFrame.transform

Last Updated : 21 Feb, 2019
Pandas DataFrame is a two-dimensional size-mutable, potentially heterogeneous tabular data structure with labeled axes (rows and columns). Arithmetic operations align on both row and column labels. It can be thought of as a dict-like container for Series objects. This is the primary data structure of the Pandas. Pandas DataFrame.transform() function call func on self producing a DataFrame with transformed values and that has the same axis length as self.
Syntax: DataFrame.transform(func, axis=0, *args, **kwargs) Parameter : func : Function to use for transforming the data axis : {0 or β€˜index’, 1 or β€˜columns’}, default 0 *args : Positional arguments to pass to func. **kwargs : Keyword arguments to pass to func. Returns : DataFrame
Example #1 : Use DataFrame.transform() function to add 10 to each element in the dataframe. Output : πŸ‘ Image
Now we will use DataFrame.transform() function to add 10 to each element of the dataframe. Output : πŸ‘ Image
As we can see in the output, the DataFrame.transform() function has successfully added 10 to each element of the given Dataframe.   Example #2 : Use DataFrame.transform() function to find the square root and the result of euler's number raised to each element of the dataframe. Output : πŸ‘ Image
Now we will use DataFrame.transform() function to find the square root and the result of euler's number raised to each element of the dataframe.
Output : πŸ‘ Image
As we can see in the output, the DataFrame.transform() function has successfully performed the desired operation on the given dataframe.
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