The Y axis is throwing me off a bit. If the X axis already shows the amount of protein per mass, why would you also couple the Y axis to the amount of protein? So all the products low on the X axis automatically increase along the Y axis. For example, the vegetables are probably that costly in this graph because they have a low protein content, not because they are necessarily that expensive.
There are some applications that require normalizing an axis by the measured variable, usually just to make something linear. Not sure what the reason here would be.
The Y axis is throwing me off a bit. If the X axis already shows the amount of protein per mass, why would you also couple the Y axis to the amount of protein? So all the products low on the X axis automatically increase along the Y axis. For example, the vegetables are probably that costly in this graph because they have a low protein content, not because they are necessarily that expensive.
There are some applications that require normalizing an axis by the measured variable, usually just to make something linear. Not sure what the reason here would be.