![python - In a pandas dataframe, how can I filter the rows based on a column value, do calculation and assign the result to a new column? - Stack Overflow python - In a pandas dataframe, how can I filter the rows based on a column value, do calculation and assign the result to a new column? - Stack Overflow](https://i.stack.imgur.com/sgobn.png)
python - In a pandas dataframe, how can I filter the rows based on a column value, do calculation and assign the result to a new column? - Stack Overflow
![Are you confused using Series.str.contains() and DataFrame.isin() then look into this article | by Rekha Kalwa | Analytics Vidhya | Medium Are you confused using Series.str.contains() and DataFrame.isin() then look into this article | by Rekha Kalwa | Analytics Vidhya | Medium](https://miro.medium.com/max/1400/1*At3J5YR8OBUnGK3MBnihjQ.png)
Are you confused using Series.str.contains() and DataFrame.isin() then look into this article | by Rekha Kalwa | Analytics Vidhya | Medium
![Are you confused using Series.str.contains() and DataFrame.isin() then look into this article | by Rekha Kalwa | Analytics Vidhya | Medium Are you confused using Series.str.contains() and DataFrame.isin() then look into this article | by Rekha Kalwa | Analytics Vidhya | Medium](https://miro.medium.com/max/1400/1*nHLechi3P1faxa8cL-6chA.png)
Are you confused using Series.str.contains() and DataFrame.isin() then look into this article | by Rekha Kalwa | Analytics Vidhya | Medium
![How to Filter Rows of a Pandas DataFrame by Column Value | by Stephen Fordham | Towards Data Science How to Filter Rows of a Pandas DataFrame by Column Value | by Stephen Fordham | Towards Data Science](https://miro.medium.com/max/1400/1*ci3P7QeMPcCxNdvhMI3a2A.png)
How to Filter Rows of a Pandas DataFrame by Column Value | by Stephen Fordham | Towards Data Science
![How to Filter Rows of a Pandas DataFrame by Column Value | by Stephen Fordham | Towards Data Science How to Filter Rows of a Pandas DataFrame by Column Value | by Stephen Fordham | Towards Data Science](https://miro.medium.com/max/1400/1*m2UHi3yBykM9BzF1f4njqw.png)
How to Filter Rows of a Pandas DataFrame by Column Value | by Stephen Fordham | Towards Data Science
![Python and Parquet performance optimization using Pandas, PySpark, PyArrow, Dask, fastparquet and AWS S3 | Data Syndrome Python and Parquet performance optimization using Pandas, PySpark, PyArrow, Dask, fastparquet and AWS S3 | Data Syndrome](https://miro.medium.com/max/1400/1*dwGGDr7HA76J6sMYt0A8iQ.png)