how to calculate distance between points using pdist2 in Matlab

Question

I am looking to find the distance between a set of points and the coordinates of a grid.

x = 177136 x 1 
y = 177136 x 1

I have the following query points to which I am trying to find the distance to x and y;

xtrack = 1 x 1166
ytrack = 1 x 1166

I have tried this:

dist = pdist2([x, y], [xtrack, ytrack]); % find the distance for each query point       
[dist, nearestID] = min(distTRI); % find element number of the nearest point

My problem is pdist2 doesn't like that the column length is different. Any ideas how I can input a vector of points like this? I want to keep xtrack and ytrack and column vectors.

Thanks.