Categorical values on both axis

[Wailor]

I want to make a table that shows the relationship between two categorical variables that have a 1:1 correspondence. My data is structured in the following tables:

• variables: has id and year as primary keys and rating as normal value.
• years: has the range of years we are working with.
• ratings: has the possible values for rating.

So, with a fixed id, I need to show the evolution of rating for every year. The problem is that I cannot find a type of graphic that allows to have categorical variables in both axis.

If possible, I'd like the graphic to look like this:

Thanks in advance.

PS: I put this in "Desktop" because I didn't know where does it belong, if there is a more fitting forum, feel free to move it.

[KumarDarmesh]

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