Try using interp2, spline or pchip. "interpolate first coloumn with second" ????
Lets see an example. A contains the data over 10 points. If you want to interpolate A on finer intervals (say in interval of 0.1), then code would like like:
A=randi(10,1,10);
interp1((1:10),A,(1:0.01:10))
spline((1:10),A,(1:0.01:10))
pchip((1:10),A,(1:0.01:10))
Above are the three different methods of interpolating linear matrix.
Hope you can relate this simple example with your problem.
