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Fix Pandas – ParseError: year 0 is out of range 0000-00-00 Error

In this tutorial, we will look at how to fix the ParseError: year 0 is out of range 0000-00-00 error when using the pandas.to_datetime() function with the help of an example. Why does this occur when using pandas.to_datetime()? We use the pandas.to_datetime() function to convert a value or column to datetime type. The “pandas ParserError: …

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Fix Pandas – OutOfBoundsDatetime: Out of bounds nanosecond timestamp Error

In this tutorial, we will look at how to fix the OutOfBoundsDatetime: Out of bounds nanosecond timestamp error when using the pandas.to_datetime() function with the help of an example. Why does the OutOfBoundsDatetime error occur when using pandas.to_datetime()? We use the pandas.to_datetime() function to convert a value or column to the pandas datetime type. The …

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Pandas – Rename Column after Reset Index

In this tutorial, we will look at how to rename the column resulting from the reset_index() function in pandas with the help of some examples. The pandas dataframe reset_index() function is used to reset the index of a dataframe and by default, it adds the previous index as a separate column in the dataframe (pass …

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Pandas – Rename Columns After Merge

In this tutorial, we will look at how to rename the columns of a dataframe resulting from the merge of two dataframes. When you’re merging two dataframes that have columns with the same names, pandas gives them default suffixes like _x, or _y to keep the names of the columns different in the resulting dataframe …

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Pandas – Rename Columns in Dataframe after Groupby

You can use the following steps to rename columns after the groupby operation on a pandas dataframe. Note that if you try to change the name of the grouping column (“col1”), you’ll get an error. This is because the resulting dataframe after groupby doesn’t have the grouping column (“col1”), its unique values are used as …

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Numpy – Check If Matrix is an Identity Matrix

In this tutorial, we will look at how to check if a matrix is an identity matrix in Numpy with the help of some examples. What is an identity matrix? An identity matrix is a square matrix with all diagonal elements as 1 and all non-diagonal elements as zero. The following image shows some identity …

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