Programming Assignment: Analyzing Chlorophyll levels in Australian Coral Reefs

{mentor edit: image of code removed}

I really don’t know where my mistake is coming from can someone help.


I get this error and do not get the expected result. Unfortunately I didn’t save the initial task to start over again.

Please do not post your code on the forum. That is not allowed by the Code of Conduct.

I have edited your message to remove the code.


Hopefully a mentor for this course will stop by with some guidance.

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hi @AhmedJoshuaHassan!
This message you have in the screenshot is not an error, it’s a warning.

Pandas issues this warning to alert you to a potential issue where you think you are modifying the original DataFrame, but you might actually be modifying a temporary copy that will be discarded. This can lead to your changes not being applied to your data as intended.

How to fix it:

The warning itself provides the solution: “Try using .loc[row_indexer, col_indexer] = value instead”.

.loc ensures that you are explicitly selecting a specific location in the DataFrame and that the assignment will happen directly on the original DataFrame, preventing the ambiguity of whether you’re working with a view or a copy.

Now, check your code again, because probably the mistake you have lies in there.

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You can refresh the lab following the instructions here under the “Coursera Jupyter Lab Environment” section.

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Issue has been resolved. Thank you.

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