lesson 3 of 6 · dataframe selection and cleaning without guessingdataframe selection and cleaning without guessinglesson 3 of 6 · dataframe selection and cleaning without guessingdataframe selection and cleaning without guessinglesson 3 of 6 · dataframe selection and cleaning without guessingdataframe selection and cleaning without guessinglesson 3 of 6 · dataframe selection and cleaning without guessingdataframe selection and cleaning without guessinglesson 3 of 6 · dataframe selection and cleaning without guessingdataframe selection and cleaning without guessinglesson 3 of 6 · dataframe selection and cleaning without guessingdataframe selection and cleaning without guessinglesson 3 of 6 · dataframe selection and cleaning without guessingdataframe selection and cleaning without guessinglesson 3 of 6 · dataframe selection and cleaning without guessingdataframe selection and cleaning without guessinglesson 3 of 6 · dataframe selection and cleaning without guessingdataframe selection and cleaning without guessinglesson 3 of 6 · dataframe selection and cleaning without guessingdataframe selection and cleaning without guessinglesson 3 of 6 · dataframe selection and cleaning without guessingdataframe selection and cleaning without guessing
This lookup grabs 'the second row' to get marcus — but the data was sorted upstream, so position 1 is no longer marcus. Fix it to look up marcus BY LABEL so it prints 72.
The break is on line 6 — but read the whole snippet first.