How can one eliminate pandas dataframe rows using the content of a specific column?

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One can eliminate pandas dataframe rows using the content of a specific column by using the .loc[] method with a Boolean condition that evaluates to True for the rows that need to be eliminated.

For example, if we have a dataframe df with a column 'A' and we want to eliminate all rows where the value of 'A' is 'x', we can use the following code:

df = df.loc[df['A'] != 'x']

This will create a new dataframe that only contains rows where the value of 'A' is not equal to 'x'.