Are the columns of data in your m file?

If so, are they all numbers? Make sure the headers are removed.

And are you doing a 3-d plot?

Anywhow, So X and U are one pair and Y and V are another pair?

If you wanna gt data from a m file, you need to use

dlmread

Using dlmread, you can convert the string of numbers in any m file into numbers [integers, reals, etc]

I'm not sure how you want this thing t be plotted. Are you looking for two diffrent plots? One for (X,U) and another for (Y,V)?

Or is it all going to be in one plot? If so,l why are there two columns?

Need more info because this is a piece of cake.