c test that input gridded data file and input gridded error file
c have the same header line.  Stop if they don't.
c
      subroutine checkerr(nx,ny,xres,yres,xleft,xright,ytop,ybot,
     1   nxe,nye,xrese,yrese,xlefte,xrighte,ytope,ybote)
c
       if ( nxe .ne. nx) then
        print *,'data and error files differ in nx: STOP ',nx,nxe
        stop
       endif
       if ( nye .ne. ny) then
        print *,'data and error files differ in ny: STOP ',ny,nye
        stop
       endif
       if ( xrese .ne. xres) then
        print *,'data and error files differ in xres: STOP ',xres,xrese
        stop
       endif
       if ( yrese .ne. yres) then
        print *,'data and error files differ in yres: STOP ',yres,yrese
        stop
       endif
       if ( xlefte .ne. xleft ) then
        print *,'data and error files differ in xleft: STOP ',xleft,xlefte
        stop
       endif
       if ( xrighte .ne. xright ) then
        print *,'data and error files differ in xright: STOP ',
     1     xright,xrighte
        stop
       endif
       if ( ytope .ne. ytop) then
        print *,'data and error files differ in ytop: STOP ',ytop,ytope
        stop
       endif
       if ( ybote .ne. ybot) then
        print *,'data and error files differ in ybot: STOP ',ybot,ybote
        stop
       endif
c
       return
       end