I have data in an excel spreadsheet of around 500 participants in a taste experiment. The data includes the age of the participant, in addition to one of five locations on their tongue in which they tasted five separate flavours, e.g. (Sweet, Middle), (Salt, Back) - The image below shows the first 20 entries to demonstrate the formatting.
I'd preferably like to be able to use R to see if taste location is dependent upon age, finding the point at which it becomes dependent (if this is indeed the case). Any general methods of doing this would be great.