Create a graph from a dataset with three variables.

I have only used matlab before for basic things.

I have been given a data.mat file which contains a dataset containing the varriables ( when i click on it in the workspace): data.X(258x226 double), data.Y (258x226 double), data.XUnits ('m'), data.YUnits ('m'), data.Val (43x257x225 double), data.Time (43x1 double), data.Name (`temp'), data.Units ('C')

Therefore, it has X coordinates, Y coordinates, time and a value at each one of these.

My question is can anyone give me a little script that will create a graph with TEMP (val) vs TIME for a given x and y coordinate?