Dear All,
I run into a problem when I studying Google Data Analytics courses. When I typed the codes, it said object ‘quarter_1_sales’ not found..
How should I solve this? Thank you in advance!
Dear All,
I run into a problem when I studying Google Data Analytics courses. When I typed the codes, it said object ‘quarter_1_sales’ not found..
I suspect you are using Ctrl+Enter to execute the code, that only runs the current line of code so the lines where you define
quarter_1_sales and quarter_2_sales have not being executed, ergo, they do not exist. You have to execute each previous line of code or source the entire script.
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INDEED, Thank you so much!! 
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