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I'm stuck on question 5! My formal is correct but there is no data showing up in the column. I successfully created a card for Univariate analysis of the 3 categories but don't know what I'm missing. Any guidance would be greatly appreciated. I'm applying for a sales position and would love to be certified prior to the interview process starting.
Some columns ( Oil production (Etemad & Luciana) (terawatt-hours), meat_prod_tonnes, and Food Balance Sheets: Eggs - Production (FAO (2017)) (tonnes) ) report country total data. Transform these three columns into per-capita data.
Here's the formula I used numval("Oil production (Etemad & Luciana) (terawatt-hours)") / numval(Population) - DSS says the formula is valid but I'm this ExpressionError: Cannot parse to number: null in the sample output column. What am I missing? I tired to apply the formula to the whole dataset then on the individual columns and got nothing
Hello, I am also having the same problem. I tried isolating the variables that needed to be converted using numval but that still didn't work. This is what I have so far:
numval("Oil production (Etemad & Luciana) (terawatt-hours)")/(Population)