splotV_IR Subroutine

subroutine splotV_IR(pname,X,Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8,append)
  integer                             :: i,Np
  character(len=*)                    :: pname
  integer,dimension(:)                :: X
  real(8),dimension(size(X))          :: Y1
  real(8),dimension(size(X)),optional :: Y2,Y3,Y4,Y5,Y6,Y7,Y8
  logical,optional                    :: append
  logical                             :: check,rw
  rw=.false.;if(present(append))rw=append
  Np=size(X)
  if(rw)then
     inquire(file=trim(adjustl(trim(pname))),exist=check)
     open(719,file=adjustl(trim(pname)),position="append")
     if(check)write(719,*)
  else
     open(719,file=adjustl(trim(pname)))
  endif
  if(present(Y8))then
     do i=1,Np
        write(719,"(I15,8(F21.12))")X(i),Y1(i),Y2(i),Y3(i),Y4(i),Y5(i),Y6(i),Y7(i),Y8(i)
     enddo
  elseif(present(Y7))then
     do i=1,Np
        write(719,"(I15,7(F21.12))")X(i),Y1(i),Y2(i),Y3(i),Y4(i),Y5(i),Y6(i),Y7(i)
     enddo
  elseif(present(Y6))then
     do i=1,Np
        write(719,"(I15,6(F21.12))")X(i),Y1(i),Y2(i),Y3(i),Y4(i),Y5(i),Y6(i)
     enddo
  elseif(present(Y5))then
     do i=1,Np
        write(719,"(I15,5(F21.12))")X(i),Y1(i),Y2(i),Y3(i),Y4(i),Y5(i)
     enddo
  elseif(present(Y4))then
     do i=1,Np
        write(719,"(I15,4(F21.12))")X(i),Y1(i),Y2(i),Y3(i),Y4(i)
     enddo
  elseif(present(Y3))then
     do i=1,Np
        write(719,"(I15,3(F21.12))")X(i),Y1(i),Y2(i),Y3(i)
     enddo
  elseif(present(Y2))then
     do i=1,Np
        write(719,*)X(i),Y1(i),Y2(i)
     enddo
  else
     do i=1,Np
        write(719,*)X(i),Y1(i)
     enddo
  endif
  close(719)
end subroutine splotV_IR