NAME
       f2cor - calculate the value of the structure function F2 for
	       two points with errors and correlation


SYNOPSIS

       call f2cor(xa,q2a,ita,xb,q2b,itb,f2a,era,f2b,erb,cor)

INPUT PARAMETERS

       xa	x value for the A-th point

       q2a	Q2 value for the A-th point

       ita=1	proton target

       ita=0	proton minus deuteron target

       ita=-1	deuteron target

       xb	x value for the B-th point

       q2b	Q2 value for the B-th point

      itb=1	proton target

       itb=0	proton minus deuteron target

       itb=-1	deuteron target


OUTPUT PARAMETERS

       f2a	F2 value averaged over 1000 neural networks for the
	        A-th point

       era	error on F2 for the A-th point

       f2b	F2 value averaged over 1000 neural networks for the
	        B-th point

       erb	error on F2 for the B-th point

       cor	correlation between the point A and the point B

AUTHORS
	 The NNPDF Collaboration: Luigi Del Debbio, Stefano Forte,
         Jose Ignacio Latorre, Andrea Piccione, Joan Rojo